Sources
Every number in our calculators is a typed, sourced constant. This table is generated at build time by walking those data modules directly. It lists 173 entries and cannot drift from the code, because it is the code.
See also: Why Masonry Calculators Disagree, which shows four figures where published calculators diverge and which basis to order by.
| Label | Value | Unit | Source | Link | Note |
|---|---|---|---|---|---|
| ASTM_MIN_COMPRESSIVE_STRENGTH_PSI › 0 › minStrengthPsi | 2000 | psi (min net-area compressive strength) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2 | link | Current C90 minimum; supersedes the older 1,900 psi figure still quoted elsewhere. |
| ASTM_MIN_COMPRESSIVE_STRENGTH_PSI › 1 › minStrengthPsi | 500 | psi (min net-area compressive strength) | CMHA TEK 1-1F, ASTM Specifications for Concrete Masonry Units | - | One quarter of the C90 requirement; nonloadbearing partitions only. |
| ASTM_MIN_COMPRESSIVE_STRENGTH_PSI › 2 › minStrengthPsi | 2500 | psi (min net-area compressive strength) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2 | link | Solid cross-section required. Test method differs from the C90/C1877 group; not directly comparable. |
| ASTM_MIN_COMPRESSIVE_STRENGTH_PSI › 3 › minStrengthPsi | 3500 | psi (min net-area compressive strength) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2 | link | Solid cross-section required. Test method differs from the C90/C1877 group; not directly comparable. |
| ASTM_MIN_COMPRESSIVE_STRENGTH_PSI › 4 › minStrengthPsi | 2000 | psi (min net-area compressive strength) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2 | link | |
| QUIKRETE Concrete Mix No. 1101, 40 lb | 0.3 | ft³ per bag | QUIKRETE Data Sheet, Concrete Mix No. 1101 | link | |
| QUIKRETE Concrete Mix No. 1101, 50 lb | 0.375 | ft³ per bag | QUIKRETE Data Sheet, Concrete Mix No. 1101 | link | |
| QUIKRETE Concrete Mix No. 1101, 60 lb | 0.45 | ft³ per bag | QUIKRETE Data Sheet, Concrete Mix No. 1101 | link | |
| QUIKRETE Concrete Mix No. 1101, 80 lb | 0.6 | ft³ per bag | QUIKRETE Data Sheet, Concrete Mix No. 1101 | link | |
| QUIKRETE Concrete Mix No. 1101, 90 lb | 0.675 | ft³ per bag | QUIKRETE Data Sheet, Concrete Mix No. 1101 | link | |
| BLOCK_PRICE_INDEX › latest › index | 196.49 | index (Dec 2006 = 100), Sep 2026 | BLS Producer Price Index, series PCU3273313273310, Concrete Block and Brick (Dec 2006 = 100), via FRED | link | Latest monthly reading used as today's index. |
| BLOCK_PRICE_INDEX › aug2023 › index | 172.991 | index (Dec 2006 = 100), Aug 2023 | BLS Producer Price Index, series PCU3273313273310, Concrete Block and Brick (Dec 2006 = 100), via FRED | link | Anchor month for the quote ageing check. |
| BLOCK_PRICE_INDEX › jan2022 › index | 146.47 | index (Dec 2006 = 100), Jan 2022 | BLS Producer Price Index, series PCU3273313273310, Concrete Block and Brick (Dec 2006 = 100), via FRED | link | Anchor month for the quote ageing check. |
| BLOCK_PRICE_INDEX › jan2020 › index | 130.1 | index (Dec 2006 = 100), Jan 2020 | BLS Producer Price Index, series PCU3273313273310, Concrete Block and Brick (Dec 2006 = 100), via FRED | link | Anchor month for the quote ageing check. |
| C90_MULTI_CONFIGURATION_REVISION_YEAR | 2011 | year (C90 multi-configuration revision) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2 | link | Before this revision the standard effectively assumed two-cell, three-web geometry. |
| C90_SUPERSEDED_MIN_STRENGTH_PSI | 1900 | psi (superseded C90 min net-area compressive strength) | Superseded figure, retained for contrast | - | The older 1,900 psi C90 minimum. Superseded by the current 2,000 psi figure; shown only to illustrate how outdated reference values keep circulating. Not used by any calculator. |
| CMU_NET_UNIT_VOLUME_IN3 | 385.7 | in³ (net concrete volume per 8x8x16 in hollow unit) | CMHA CMU-TEC-002-23, Weights and Section Properties of Concrete Masonry Assemblies, section 1.1.1 | link | 8 by 8 by 16 in nominal hollow unit at ASTM C90 minimum thicknesses: two face shells at 1.25 in and three webs at 0.75 in. Vu = 2(148.9) + 3(29.3). |
| CMU_UNITS › 4 › nominalDimensionsIn | {"width":4,"height":8,"length":16} | in (nominal W×H×L) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | Modular nominal size; the physical unit is smaller by one mortar joint. |
| CMU_UNITS › 4 › actualDimensionsIn | {"width":3.625,"height":7.625,"length":15.625} | in (actual W×H×L) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | Actual = nominal minus one 3/8 in (0.375 in) mortar joint on each dimension. |
| CMU_UNITS › 4 › cellCount | 2 | cells | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | Standard hollow loadbearing unit: 2 cells, 3 cross-webs (2 end webs + 1 center web). |
| CMU_UNITS › 4 › webCount | 3 | webs | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | Standard hollow loadbearing unit: 2 cells, 3 cross-webs (2 end webs + 1 center web). |
| CMU_UNITS › 4 › faceShellThicknessIn | 0.75 | in | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | ASTM C90 minimum face-shell thickness. |
| CMU_UNITS › 4 › webThicknessIn | 0.75 | in | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | ASTM C90-11b replaced per-width web minimums and equivalent web thickness with a single 0.75 in minimum web plus a normalized web contact area. These are minimums; produced units are frequently thicker. |
| CMU_UNITS › 4 › blocksPerSqFt | 1.125 | blocks/ft² of wall | Derived from the nominal 16 × 8 in modular face (CMHA/NCMA estimating convention) | link | 16 × 8 in face = 128 in² = 0.8889 ft²; 1 / 0.8889 = 1.125 blocks/ft². |
| CMU_UNITS › 4 › faceType | 8x16 | nominal face (H×L in.) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | 4, 6, 8, 10 and 12 in widths all share the 8 × 16 in face. |
| CMU_UNITS › 6 › nominalDimensionsIn | {"width":6,"height":8,"length":16} | in (nominal W×H×L) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | Modular nominal size; the physical unit is smaller by one mortar joint. |
| CMU_UNITS › 6 › actualDimensionsIn | {"width":5.625,"height":7.625,"length":15.625} | in (actual W×H×L) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | Actual = nominal minus one 3/8 in (0.375 in) mortar joint on each dimension. |
| CMU_UNITS › 6 › cellCount | 2 | cells | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | Standard hollow loadbearing unit: 2 cells, 3 cross-webs (2 end webs + 1 center web). |
| CMU_UNITS › 6 › webCount | 3 | webs | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | Standard hollow loadbearing unit: 2 cells, 3 cross-webs (2 end webs + 1 center web). |
| CMU_UNITS › 6 › faceShellThicknessIn | 1 | in | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | ASTM C90 minimum face-shell thickness. |
| CMU_UNITS › 6 › webThicknessIn | 0.75 | in | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | ASTM C90-11b replaced per-width web minimums and equivalent web thickness with a single 0.75 in minimum web plus a normalized web contact area. These are minimums; produced units are frequently thicker. |
| CMU_UNITS › 6 › blocksPerSqFt | 1.125 | blocks/ft² of wall | Derived from the nominal 16 × 8 in modular face (CMHA/NCMA estimating convention) | link | 16 × 8 in face = 128 in² = 0.8889 ft²; 1 / 0.8889 = 1.125 blocks/ft². |
| CMU_UNITS › 6 › faceType | 8x16 | nominal face (H×L in.) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | 4, 6, 8, 10 and 12 in widths all share the 8 × 16 in face. |
| CMU_UNITS › 8 › nominalDimensionsIn | {"width":8,"height":8,"length":16} | in (nominal W×H×L) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | Modular nominal size; the physical unit is smaller by one mortar joint. |
| CMU_UNITS › 8 › actualDimensionsIn | {"width":7.625,"height":7.625,"length":15.625} | in (actual W×H×L) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | Actual = nominal minus one 3/8 in (0.375 in) mortar joint on each dimension. |
| CMU_UNITS › 8 › cellCount | 2 | cells | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | Standard hollow loadbearing unit: 2 cells, 3 cross-webs (2 end webs + 1 center web). |
| CMU_UNITS › 8 › webCount | 3 | webs | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | Standard hollow loadbearing unit: 2 cells, 3 cross-webs (2 end webs + 1 center web). |
| CMU_UNITS › 8 › faceShellThicknessIn | 1.25 | in | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | ASTM C90 minimum face-shell thickness. |
| CMU_UNITS › 8 › webThicknessIn | 0.75 | in | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | ASTM C90-11b replaced per-width web minimums and equivalent web thickness with a single 0.75 in minimum web plus a normalized web contact area. These are minimums; produced units are frequently thicker. |
| CMU_UNITS › 8 › blocksPerSqFt | 1.125 | blocks/ft² of wall | Derived from the nominal 16 × 8 in modular face (CMHA/NCMA estimating convention) | link | 16 × 8 in face = 128 in² = 0.8889 ft²; 1 / 0.8889 = 1.125 blocks/ft². |
| CMU_UNITS › 8 › faceType | 8x16 | nominal face (H×L in.) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | 4, 6, 8, 10 and 12 in widths all share the 8 × 16 in face. |
| CMU_UNITS › 10 › nominalDimensionsIn | {"width":10,"height":8,"length":16} | in (nominal W×H×L) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | Modular nominal size; the physical unit is smaller by one mortar joint. |
| CMU_UNITS › 10 › actualDimensionsIn | {"width":9.625,"height":7.625,"length":15.625} | in (actual W×H×L) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | Actual = nominal minus one 3/8 in (0.375 in) mortar joint on each dimension. |
| CMU_UNITS › 10 › cellCount | 2 | cells | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | Standard hollow loadbearing unit: 2 cells, 3 cross-webs (2 end webs + 1 center web). |
| CMU_UNITS › 10 › webCount | 3 | webs | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | Standard hollow loadbearing unit: 2 cells, 3 cross-webs (2 end webs + 1 center web). |
| CMU_UNITS › 10 › faceShellThicknessIn | 1.25 | in | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | ASTM C90 minimum face-shell thickness. |
| CMU_UNITS › 10 › webThicknessIn | 0.75 | in | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | ASTM C90-11b replaced per-width web minimums and equivalent web thickness with a single 0.75 in minimum web plus a normalized web contact area. These are minimums; produced units are frequently thicker. |
| CMU_UNITS › 10 › blocksPerSqFt | 1.125 | blocks/ft² of wall | Derived from the nominal 16 × 8 in modular face (CMHA/NCMA estimating convention) | link | 16 × 8 in face = 128 in² = 0.8889 ft²; 1 / 0.8889 = 1.125 blocks/ft². |
| CMU_UNITS › 10 › faceType | 8x16 | nominal face (H×L in.) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | 4, 6, 8, 10 and 12 in widths all share the 8 × 16 in face. |
| CMU_UNITS › 12 › nominalDimensionsIn | {"width":12,"height":8,"length":16} | in (nominal W×H×L) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | Modular nominal size; the physical unit is smaller by one mortar joint. |
| CMU_UNITS › 12 › actualDimensionsIn | {"width":11.625,"height":7.625,"length":15.625} | in (actual W×H×L) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | Actual = nominal minus one 3/8 in (0.375 in) mortar joint on each dimension. |
| CMU_UNITS › 12 › cellCount | 2 | cells | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | Standard hollow loadbearing unit: 2 cells, 3 cross-webs (2 end webs + 1 center web). |
| CMU_UNITS › 12 › webCount | 3 | webs | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | Standard hollow loadbearing unit: 2 cells, 3 cross-webs (2 end webs + 1 center web). |
| CMU_UNITS › 12 › faceShellThicknessIn | 1.25 | in | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | ASTM C90 minimum face-shell thickness. |
| CMU_UNITS › 12 › webThicknessIn | 0.75 | in | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | ASTM C90-11b replaced per-width web minimums and equivalent web thickness with a single 0.75 in minimum web plus a normalized web contact area. These are minimums; produced units are frequently thicker. |
| CMU_UNITS › 12 › blocksPerSqFt | 1.125 | blocks/ft² of wall | Derived from the nominal 16 × 8 in modular face (CMHA/NCMA estimating convention) | link | 16 × 8 in face = 128 in² = 0.8889 ft²; 1 / 0.8889 = 1.125 blocks/ft². |
| CMU_UNITS › 12 › faceType | 8x16 | nominal face (H×L in.) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | 4, 6, 8, 10 and 12 in widths all share the 8 × 16 in face. |
| CONVENTIONAL_UNITS_PER_100_SQFT_WITH_WASTE | 119 | units per 100 ft² of wall (includes 5% waste) | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | CMHA block-order figure with a 5% allowance; 112.5 without waste. |
| CUBIC_YARD_EQUIVALENT | 27 | ft³ per yd³ | Definitional (US customary units) | - | 1 yd³ = 27 ft³; divide a ft³ total by 27 for ready-mix ordering. |
| DENSITY_CLASSES › lightweight › density | < 105 | lb/ft³ (oven-dry density) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2 | link | |
| DENSITY_CLASSES › lightweight › maxAbsorptionLbFt3 | 18 | lb/ft³ (C90 max water absorption) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2 | link | Higher limit: lightweight aggregates are more porous at the same compaction. |
| DENSITY_CLASSES › mediumWeight › density | >= 105 and < 125 | lb/ft³ (oven-dry density) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2 | link | |
| DENSITY_CLASSES › mediumWeight › maxAbsorptionLbFt3 | 15 | lb/ft³ (C90 max water absorption) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2 | link | |
| DENSITY_CLASSES › normalWeight › density | >= 125 | lb/ft³ (oven-dry density) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2 | link | |
| DENSITY_CLASSES › normalWeight › maxAbsorptionLbFt3 | 13 | lb/ft³ (C90 max water absorption) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2 | link | |
| DIMENSIONAL_TOLERANCE_IN | 0.125 | in (± on width, height, length) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | Permitted deviation of ± 1/8 in (0.125 in) from the specified dimension per ASTM C90. |
| HALF_HIGH_BLOCKS_PER_SQFT | 2.25 | blocks/ft² of wall | Derived from the nominal 4 × 16 in half-high face (CMHA/NCMA estimating convention) | link | 4 × 16 in face = 64 in² = 0.4444 ft²; 1 / 0.4444 = 2.25 blocks/ft². |
| HALF_HIGH_UNIT › nominalDimensionsIn | {"width":8,"height":4,"length":16} | in (nominal W×H×L) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | Half-high modular nominal size; the physical unit is smaller by one mortar joint. |
| HALF_HIGH_UNIT › actualDimensionsIn | {"width":7.625,"height":3.625,"length":15.625} | in (actual W×H×L) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | Half-high actual size: 7 5/8 × 3 5/8 × 15 5/8 in (nominal minus one 3/8 in mortar joint). |
| HALF_HIGH_UNIT › cellCount | 2 | cells | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | Half-high hollow units share the standard 2-cell configuration. |
| HALF_HIGH_UNIT › webCount | 3 | webs | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | Half-high hollow units share the standard 3-web configuration. |
| HALF_HIGH_UNIT › faceShellThicknessIn | 1.25 | in | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | ASTM C90 minimum face-shell thickness for an 8 in wide unit. |
| HALF_HIGH_UNIT › webThicknessIn | 0.75 | in | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2, reproducing ASTM C90 physical requirements | link | ASTM C90-11b replaced per-width web minimums and equivalent web thickness with a single 0.75 in minimum web plus a normalized web contact area. These are minimums; produced units are frequently thicker. |
| HALF_HIGH_UNIT › faceType | 4x16 | nominal face (H×L in.) | CMHA CMU-TEC-001-23, nominal/actual dimensions and the 3/8 in mortar joint convention | link | Half-high units use the 4 × 16 in face, so they lay 2.25 per ft². |
| MANUFACTURER_MORTAR_YIELD › quikrete80lb › cmuLaid | 13 | 8 in CMU laid per bag | QUIKRETE Mason Mix, Product No. 1136, product data sheet | link | Yield stated as up to 37 standard bricks or 13 standard 8 by 8 by 16 in blocks per 80 lb bag. Mason Mix meets ASTM C270 and C1714 as Type S. |
| MANUFACTURER_MORTAR_YIELD › quikrete80lb › bricksLaid | 37 | modular bricks laid per bag | QUIKRETE Mason Mix, Product No. 1136, product data sheet | link | Yield stated as up to 37 standard bricks or 13 standard 8 by 8 by 16 in blocks per 80 lb bag. Mason Mix meets ASTM C270 and C1714 as Type S. |
| MANUFACTURER_MORTAR_YIELD › quikreteMortarMix1102 › cmuLaid | 13 | 8 in CMU laid per bag | QUIKRETE Mortar Mix, Product No. 1102, product data sheet | link | Type N formulation. Identical published yield to the Type S Mason Mix, confirming that yield does not vary with mortar type within one product line. |
| MANUFACTURER_MORTAR_YIELD › quikreteMortarMix1102 › bricksLaid | 37 | modular bricks laid per bag | QUIKRETE Mortar Mix, Product No. 1102, product data sheet | link | Type N formulation. Identical published yield to the Type S Mason Mix, confirming that yield does not vary with mortar type within one product line. |
| MANUFACTURER_MORTAR_YIELD › sakrete80lb › cmuLaid | 12 | 8 in CMU laid per bag | Sakrete Mortar Mix Type S, published product yield data | link | Yield published by Basalite, a Sakrete distributor, reproducing manufacturer product data. Replace with a sakrete.com URL when one is located. 80 lb bag also covers 10 sq ft of cultured stone, 60 lb bag 7.5 sq ft. |
| MANUFACTURER_MORTAR_YIELD › sakrete80lb › bricksLaid | 35 | modular bricks laid per bag | Sakrete Mortar Mix Type S, published product yield data | link | Yield published by Basalite, a Sakrete distributor, reproducing manufacturer product data. Replace with a sakrete.com URL when one is located. 80 lb bag also covers 10 sq ft of cultured stone, 60 lb bag 7.5 sq ft. |
| MANUFACTURER_MORTAR_YIELD › sakrete60lb › cmuLaid | 9 | 8 in CMU laid per bag | Sakrete Mortar Mix Type S, published product yield data | link | Yield published by Basalite, a Sakrete distributor, reproducing manufacturer product data. Replace with a sakrete.com URL when one is located. 80 lb bag also covers 10 sq ft of cultured stone, 60 lb bag 7.5 sq ft. |
| MANUFACTURER_MORTAR_YIELD › sakrete60lb › bricksLaid | 26 | modular bricks laid per bag | Sakrete Mortar Mix Type S, published product yield data | link | Yield published by Basalite, a Sakrete distributor, reproducing manufacturer product data. Replace with a sakrete.com URL when one is located. 80 lb bag also covers 10 sq ft of cultured stone, 60 lb bag 7.5 sq ft. |
| MASONRY_LABOR › medianHourlyWage | 28.02 | USD per hour (median wage, masonry workers, May 2025) | BLS Occupational Outlook Handbook, Masonry Workers, May 2025 | link | A wage a worker earns, not a contractor's billed rate, which also carries insurance, overhead, equipment and margin. |
| MASONRY_LABOR › medianAnnualWage | 62120 | USD per year (median pay, brickmasons and blockmasons, May 2025) | BLS Occupational Outlook Handbook, Masonry Workers, May 2025 | link | |
| MASONRY_LABOR › employment | 62400 | jobs (brickmasons and blockmasons, 2025) | BLS Occupational Outlook Handbook, Masonry Workers, May 2025 | link | |
| MAX_DRYING_SHRINKAGE_PERCENT | 0.065 | % (C90 max drying shrinkage) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2 | link | |
| MIN_WATER_RETENTION_PERCENT | 75 | % (min water retention, all types) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | |
| MIX_WATER_QUARTS › per80lbBag | 5 | quarts water per 80 lb bag | QUIKRETE Mason Mix, Product No. 1136, product data sheet | link | Mixing water per the QUIKRETE Mason Mix No. 1136 data sheet. |
| MIX_WATER_QUARTS › per60lbBag | 3.75 | quarts water per 60 lb bag | QUIKRETE Mason Mix, Product No. 1136, product data sheet | link | Mixing water per the QUIKRETE Mason Mix No. 1136 data sheet. |
| MORTAR_AGGREGATE_PROPERTY_SPEC | 2 1/4 to 3 1/2 times the sum of the separate volumes of cementitious materials | aggregate, parts by volume (property spec) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | |
| MORTAR_AGGREGATE_PROPORTION_SPEC | 2 1/4 to 3 times the sum of the separate volumes of cementitious materials | aggregate, parts by volume (proportion spec) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | |
| MORTAR_TYPES › M › minCompressiveStrengthPsi | 2500 | psi (min avg compressive strength at 28 days, property spec) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | |
| MORTAR_TYPES › M › maxAirCementLimePercent | 12 | % (max air, cement lime and mortar cement) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | Where structural reinforcement is embedded in the mortar, the maximum air content is 12 percent for cement lime mortars and 18 percent for masonry cement mortars. |
| MORTAR_TYPES › M › maxAirMasonryCementPercent | 18 | % (max air, masonry cement) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | Where structural reinforcement is embedded in the mortar, the maximum air content is 12 percent for cement lime mortars and 18 percent for masonry cement mortars. |
| MORTAR_TYPES › M › limeProportionByVolume | 1/4 | parts hydrated lime by volume (portland cement = 1) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | |
| MORTAR_TYPES › S › minCompressiveStrengthPsi | 1800 | psi (min avg compressive strength at 28 days, property spec) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | |
| MORTAR_TYPES › S › maxAirCementLimePercent | 12 | % (max air, cement lime and mortar cement) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | Where structural reinforcement is embedded in the mortar, the maximum air content is 12 percent for cement lime mortars and 18 percent for masonry cement mortars. |
| MORTAR_TYPES › S › maxAirMasonryCementPercent | 18 | % (max air, masonry cement) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | Where structural reinforcement is embedded in the mortar, the maximum air content is 12 percent for cement lime mortars and 18 percent for masonry cement mortars. |
| MORTAR_TYPES › S › limeProportionByVolume | over 1/4 to 1/2 | parts hydrated lime by volume (portland cement = 1) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | |
| MORTAR_TYPES › N › minCompressiveStrengthPsi | 750 | psi (min avg compressive strength at 28 days, property spec) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | |
| MORTAR_TYPES › N › maxAirCementLimePercent | 14 | % (max air, cement lime and mortar cement) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | Where structural reinforcement is embedded in the mortar, the maximum air content is 12 percent for cement lime mortars and 18 percent for masonry cement mortars. |
| MORTAR_TYPES › N › maxAirMasonryCementPercent | 20 | % (max air, masonry cement) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | Where structural reinforcement is embedded in the mortar, the maximum air content is 12 percent for cement lime mortars and 18 percent for masonry cement mortars. |
| MORTAR_TYPES › N › limeProportionByVolume | over 1/2 to 1 1/4 | parts hydrated lime by volume (portland cement = 1) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | |
| MORTAR_TYPES › O › minCompressiveStrengthPsi | 350 | psi (min avg compressive strength at 28 days, property spec) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | |
| MORTAR_TYPES › O › maxAirCementLimePercent | 14 | % (max air, cement lime and mortar cement) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | Where structural reinforcement is embedded in the mortar, the maximum air content is 12 percent for cement lime mortars and 18 percent for masonry cement mortars. |
| MORTAR_TYPES › O › maxAirMasonryCementPercent | 20 | % (max air, masonry cement) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | Where structural reinforcement is embedded in the mortar, the maximum air content is 12 percent for cement lime mortars and 18 percent for masonry cement mortars. |
| MORTAR_TYPES › O › limeProportionByVolume | over 1 1/4 to 2 1/2 | parts hydrated lime by volume (portland cement = 1) | CMHA TEK 09-01A, Mortars for Concrete Masonry, Tables 1 and 2 | link | |
| MORTAR_UNITS_PER_BATCH › preblended80lb › cmuLaid | 16 | 8 in CMU laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| MORTAR_UNITS_PER_BATCH › preblended80lb › bricksLaid | 50 | modular bricks laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| MORTAR_UNITS_PER_BATCH › preblendedBulk3000lb › cmuLaid | 420 | 8 in CMU laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| MORTAR_UNITS_PER_BATCH › preblendedBulk3000lb › bricksLaid | 1550 | modular bricks laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| MORTAR_UNITS_PER_BATCH › masonryCementPlusSand › cmuLaid | 240 | 8 in CMU laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| MORTAR_UNITS_PER_BATCH › masonryCementPlusSand › bricksLaid | 1000 | modular bricks laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| NCMA_GROUT_TABLE | {"8":{"6":25.6,"8":36.1,"10":47,"12":58.9},"16":{"6":12.8,"8":18.1,"10":23.5,"12":29.5},"24":{"6":8.6,"8":12.1,"10":15.7,"12":19.7},"32":{"6":6.4,"8":9.1,"10":11.8,"12":14.8},"40":{"6":5.2,"8":7.3,"10":9.4,"12":11.8},"48":{"6":4.3,"8":6.1,"10":7.9,"12":9.9},"56":{"6":3.7,"8":5.2,"10":6.8,"12":8.5},"64":{"6":3.2,"8":4.6,"10":5.9,"12":7.4},"72":{"6":2.9,"8":4.1,"10":5.3,"12":6.6},"80":{"6":2.6,"8":3.7,"10":4.7,"12":5.9},"88":{"6":2.4,"8":3.3,"10":4.3,"12":5.4},"96":{"6":2.2,"8":3.1,"10":4,"12":5},"104":{"6":2,"8":2.8,"10":3.7,"12":4.6},"112":{"6":1.9,"8":2.6,"10":3.4,"12":4.3},"120":{"6":1.8,"8":2.5,"10":3.2,"12":4}} | ft³ grout per 100 ft² wall area | CMHA TEK 09-04A, "Grout for Concrete Masonry", Table 2: Grout Volume Estimation | link | Includes waste allowance. Excludes bond beams and other horizontal grouted courses. There is NO 4 in column. |
| NCMA_ROW_BEDDING | {"8":"full","16":"face-shell","24":"face-shell","32":"face-shell","40":"face-shell","48":"face-shell","56":"face-shell","64":"face-shell","72":"face-shell","80":"face-shell","88":"face-shell","96":"face-shell","104":"face-shell","112":"face-shell","120":"face-shell"} | mortar bedding type | CMHA TEK 09-04A, "Grout for Concrete Masonry", Table 2: Grout Volume Estimation | link | Per CMHA TEK 09-04A Table 2: 8 in spacing (all cells grouted) assumes full mortar bedding; all wider spacings assume face-shell bedding. |
| NET_SECTION_AREA_IN2_PER_FT | [{"config":"hollow","grout":"ungrouted","bedding":"face shell","netAreaIn2PerFt":30},{"config":"hollow","grout":"ungrouted","bedding":"full","netAreaIn2PerFt":38.6},{"config":"solid","grout":"ungrouted","bedding":"full","netAreaIn2PerFt":91.5},{"config":"hollow","grout":"grouted 8 in","bedding":"full","netAreaIn2PerFt":90.1}] | in² net cross-sectional area per ft of 8 in wall | CMHA CMU-TEC-002-23, Weights and Section Properties of Concrete Masonry Assemblies, Table 2A | link | Horizontal net cross-sectional area at the bed joint for an 8 in nominal single-wythe wall. |
| SITE_MIXED_RECIPES › M › cementFt3 | 1 | ft³ portland cement per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › M › limeFt3 | 0.25 | ft³ hydrated lime per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › M › sandFt3 | 3.75 | ft³ sand per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › M › cmuLaid | 38 | 8 in CMU laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › M › bricksLaid | 187 | modular bricks laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › S › cementFt3 | 1 | ft³ portland cement per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › S › limeFt3 | 0.5 | ft³ hydrated lime per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › S › sandFt3 | 4.5 | ft³ sand per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › S › cmuLaid | 46 | 8 in CMU laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › S › bricksLaid | 225 | modular bricks laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › N › cementFt3 | 1 | ft³ portland cement per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › N › limeFt3 | 1 | ft³ hydrated lime per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › N › sandFt3 | 6 | ft³ sand per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › N › cmuLaid | 62 | 8 in CMU laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › N › bricksLaid | 300 | modular bricks laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › O › cementFt3 | 1 | ft³ portland cement per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › O › limeFt3 | 2 | ft³ hydrated lime per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › O › sandFt3 | 9 | ft³ sand per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › O › cmuLaid | 93 | 8 in CMU laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SITE_MIXED_RECIPES › O › bricksLaid | 450 | modular bricks laid per batch | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | Face shell bedding. Quantities are independent of unit width. Special units such as pilaster, corner, bond beam and lintel are estimated separately. |
| SOLID_UNIT_NET_AREA_PERCENT | 75 | % (min net area of gross for a solid unit) | CMHA CMU-TEC-001-23, Concrete Masonry Unit Shapes, Sizes, Properties, and Specifications, Table 2 | link | In every plane parallel to the bearing surface. Below this threshold the unit is hollow. |
| SRW_RETAINING_WALL › minEmbedmentIn | 6 | in (minimum wall embedment, applies as a floor to every basis) | CMHA and NCMA, Segmental Retaining Walls Best Practices Guide, Table 1.3-1 | - | |
| SRW_RETAINING_WALL › embedmentDivisorLevel | 20 | divisor, level front slope (embedment = H' / 20) | CMHA and NCMA, Segmental Retaining Walls Best Practices Guide, Figure 1.3-1 | - | |
| SRW_RETAINING_WALL › embedmentDivisor3h1v | 10 | divisor, 3H:1V front slope (embedment = H' / 10) | CMHA and NCMA, Segmental Retaining Walls Best Practices Guide, Figure 1.3-1 | - | |
| SRW_RETAINING_WALL › embedmentDivisor2h1v | 7 | divisor, 2H:1V front slope (embedment = H' / 7) | CMHA and NCMA, Segmental Retaining Walls Best Practices Guide, Figure 1.3-1 | - | |
| SRW_RETAINING_WALL › embedmentAltDivisorPerFt | 12 | divisor, alternative basis (1 in per ft of height = H'_in / 12), 6 in floor | Allan Block, Best Practices for SRW Walls, 2.6(a) | - | |
| SRW_RETAINING_WALL › gravelBehindMinIn | 12 | in (minimum gravel fill behind the unit) | CMHA SRW-TEC-005, Guide to Segmental Retaining Walls; CMHA and NCMA, Segmental Retaining Walls Best Practices Guide, Section 3.5 | link | |
| SRW_RETAINING_WALL › gravelFromFaceMinIn | 24 | in (minimum gravel fill from the wall face, walls to 10 ft) | CMHA and NCMA, Segmental Retaining Walls Best Practices Guide, Section 3.5 and Table 1.3-2 | - | |
| SRW_RETAINING_WALL › gravelBandMaxFt | 10 | ft (wall height at which the gravel band switches to 24 in behind, 36 in from face) | CMHA and NCMA, Segmental Retaining Walls Best Practices Guide, Table 1.3-2 | - | |
| SRW_RETAINING_WALL › gravelBehindTallIn | 24 | in (gravel behind the unit, 10 to 20 ft walls) | CMHA and NCMA, Segmental Retaining Walls Best Practices Guide, Table 1.3-2 | - | |
| SRW_RETAINING_WALL › gravelFromFaceTallIn | 36 | in (gravel from the wall face, 10 to 20 ft walls) | CMHA and NCMA, Segmental Retaining Walls Best Practices Guide, Table 1.3-2 | - | |
| SRW_RETAINING_WALL › levelingPadThicknessIn | 6 | in (minimum leveling pad thickness) | CMHA SRW-TEC-005, Guide to Segmental Retaining Walls | link | |
| SRW_RETAINING_WALL › levelingPadExtensionIn | 6 | in (pad extension beyond the toe and beyond the heel) | CMHA SRW-TEC-005, Guide to Segmental Retaining Walls | link | |
| SRW_RETAINING_WALL › levelingPadMaterial | Crushed stone or unreinforced concrete | leveling pad material | CMHA SRW-TEC-005, Guide to Segmental Retaining Walls | link | |
| SRW_RETAINING_WALL › frostLine | SRW footing need not be placed below the frost line where bearing capacity is adequate | foundation note | CMHA SRW-TEC-005, Guide to Segmental Retaining Walls | link | |
| SRW_RETAINING_WALL › heelDrainGravelPerFt | 1 | cu ft per linear ft of wall (gravel around the heel drain pipe) | CMHA and NCMA, Segmental Retaining Walls Best Practices Guide, Section 4.1.2.1 | - | |
| SRW_RETAINING_WALL › drainPipeMinDiameterIn | 3 | in (minimum drain pipe diameter) | CMHA SRW-GSP-001, SRW Sample Specifications, 3.07 | link | |
| SRW_RETAINING_WALL › drainPipeSlopePercent | 2 | percent (minimum drain pipe fall) | CMHA SRW-GSP-001, SRW Sample Specifications, 3.07 | link | |
| SRW_RETAINING_WALL › permitThresholdFt | 4 | ft total height (permit required above this, buried course included) | IBC Section 105.2, via CMHA SRW-FAQ-001, Segmental Retaining Wall FAQ | link | |
| SRW_RETAINING_WALL › gravityWallCeiling | 3 to 4 ft, less in poor soil or under a surcharge | ft (practical gravity wall height ceiling) | CMHA SRW-FAQ-001, Segmental Retaining Wall FAQ | link | |
| SRW_RETAINING_WALL › engineerTriggers | Surcharge load, live loads, poor foundation soil, or design conditions requiring special consideration | conditions requiring a qualified engineer | CMHA SRW-TEC-005, Guide to Segmental Retaining Walls | link | |
| UNIT_CONVERSIONS › inchesPerFoot | 12 | in/ft | Definitional (US customary units) | - | 1 ft = 12 in. |
| UNIT_CONVERSIONS › cubicInchesPerCubicFoot | 1728 | in³/ft³ | Definitional (US customary units) | - | 12³ = 1728. |
| UNIT_CONVERSIONS › cubicFeetPerCubicYard | 27 | ft³/yd³ | Definitional (US customary units) | - | 3³ = 27. |
| UNIT_CONVERSIONS › millimetersPerInch | 25.4 | mm/in | Definitional (international inch) | - | 1 in = 25.4 mm exactly. |
| UNIT_CONVERSIONS › ncmaTableBasisSqFt | 100 | ft² wall | CMHA TEK 09-04A, Table 2 basis | - | Table values are quantities per 100 ft² of wall area. |
| UNIT_CONVERSIONS › percentBasis | 100 | % | Definitional | - | percent / 100 = fraction. |
| UNIT_FACES › conventional › faceAreaSqFt | 0.8889 | ft² of wall per unit (nominal face) | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | |
| UNIT_FACES › conventional › unitsPer100SqFt | 112.5 | units per 100 ft² of wall | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | |
| UNIT_FACES › halfHigh › faceAreaSqFt | 0.4444 | ft² of wall per unit (nominal face) | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | |
| UNIT_FACES › halfHigh › unitsPer100SqFt | 225 | units per 100 ft² of wall | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | |
| UNIT_FACES › halfLength › faceAreaSqFt | 0.4444 | ft² of wall per unit (nominal face) | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | |
| UNIT_FACES › halfLength › unitsPer100SqFt | 225 | units per 100 ft² of wall | CMHA TEK 04-02A, Estimating Concrete Masonry Materials | link | |
| VALIDATION_LIMITS › maxBlockCount | 100000 | blocks | Project spec (Prompt 2), validation rules | - | Reject block counts greater than this. |
| VALIDATION_LIMITS › minWastePercent | 0 | % | Project spec (Prompt 2), validation rules | - | |
| VALIDATION_LIMITS › maxWastePercent | 25 | % | Project spec (Prompt 2), validation rules | - | |
| WALL_WEIGHT_PSF | [{"config":"hollow","verticalGroutSpacing":"no grout","bedding":"face shell","byDensity":{"85":24,"95":26,"105":29,"115":31,"125":34,"135":36,"145":39}},{"config":"hollow","verticalGroutSpacing":"no grout","bedding":"full","byDensity":{"85":24,"95":27,"105":29,"115":32,"125":34,"135":37,"145":39}},{"config":"solid","verticalGroutSpacing":"no grout","bedding":"full","byDensity":{"85":56,"95":62,"105":68,"115":74,"125":80,"135":86,"145":92}},{"config":"hollow","verticalGroutSpacing":"8 in","bedding":"full","byDensity":{"85":74,"95":76,"105":79,"115":82,"125":84,"135":87,"145":89}},{"config":"hollow","verticalGroutSpacing":"16 in","bedding":"face shell","byDensity":{"85":49,"95":51,"105":54,"115":56,"125":59,"135":61,"145":64}},{"config":"hollow","verticalGroutSpacing":"24 in","bedding":"face shell","byDensity":{"85":40,"95":43,"105":46,"115":48,"125":51,"135":53,"145":56}},{"config":"hollow","verticalGroutSpacing":"32 in","bedding":"face shell","byDensity":{"85":36,"95":39,"105":41,"115":44,"125":46,"135":49,"145":51}},{"config":"hollow","verticalGroutSpacing":"40 in","bedding":"face shell","byDensity":{"85":34,"95":36,"105":39,"115":41,"125":44,"135":46,"145":49}},{"config":"hollow","verticalGroutSpacing":"48 in","bedding":"face shell","byDensity":{"85":32,"95":35,"105":37,"115":40,"125":42,"135":45,"145":47}},{"config":"hollow","verticalGroutSpacing":"56 in","bedding":"face shell","byDensity":{"85":31,"95":33,"105":36,"115":38,"125":41,"135":43,"145":46}},{"config":"hollow","verticalGroutSpacing":"64 in","bedding":"face shell","byDensity":{"85":30,"95":32,"105":35,"115":37,"125":40,"135":43,"145":45}},{"config":"hollow","verticalGroutSpacing":"72 in","bedding":"face shell","byDensity":{"85":29,"95":32,"105":34,"115":37,"125":39,"135":42,"145":44}},{"config":"hollow","verticalGroutSpacing":"80 in","bedding":"face shell","byDensity":{"85":29,"95":31,"105":34,"115":36,"125":39,"135":41,"145":44}},{"config":"hollow","verticalGroutSpacing":"88 in","bedding":"face shell","byDensity":{"85":28,"95":31,"105":33,"115":36,"125":38,"135":41,"145":43}},{"config":"hollow","verticalGroutSpacing":"96 in","bedding":"face shell","byDensity":{"85":28,"95":30,"105":33,"115":35,"125":38,"135":40,"145":43}},{"config":"hollow","verticalGroutSpacing":"104 in","bedding":"face shell","byDensity":{"85":28,"95":30,"105":33,"115":35,"125":38,"135":40,"145":43}},{"config":"hollow","verticalGroutSpacing":"112 in","bedding":"face shell","byDensity":{"85":27,"95":30,"105":32,"115":35,"125":37,"135":40,"145":42}},{"config":"hollow","verticalGroutSpacing":"120 in","bedding":"face shell","byDensity":{"85":27,"95":30,"105":32,"115":35,"125":37,"135":40,"145":42}}] | lb per sq ft of wall | CMHA CMU-TEC-002-23, Weights and Section Properties of Concrete Masonry Assemblies, Table 1 | link | Assumes ASTM C90 minimum face shell and web thickness, 3/8 in mortar joints, mortar density 125 lb per cu ft, grout density 140 lb per cu ft, two cells and three webs per unit, and horizontal grout placement at 16 in on center. |