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 57 entries and cannot drift from the code, because it is the code.
| Label | Value | Unit | Source | Link | Note |
|---|---|---|---|---|---|
| cmu-units › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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 › 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. |
| cmu-units › 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. |
| grout-volumes › 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. |
| grout-volumes › 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. |
| units › UNIT_CONVERSIONS › inchesPerFoot | 12 | in/ft | Definitional (US customary units) | - | 1 ft = 12 in. |
| units › UNIT_CONVERSIONS › cubicInchesPerCubicFoot | 1728 | in³/ft³ | Definitional (US customary units) | - | 12³ = 1728. |
| units › UNIT_CONVERSIONS › cubicFeetPerCubicYard | 27 | ft³/yd³ | Definitional (US customary units) | - | 3³ = 27. |
| units › UNIT_CONVERSIONS › ncmaTableBasisSqFt | 100 | ft² wall | CMHA TEK 09-04A, Table 2 basis | - | Table values are quantities per 100 ft² of wall area. |
| units › UNIT_CONVERSIONS › percentBasis | 100 | % | Definitional | - | percent / 100 = fraction. |
| units › VALIDATION_LIMITS › maxBlockCount | 100000 | blocks | Project spec (Prompt 2), validation rules | - | Reject block counts greater than this. |
| units › VALIDATION_LIMITS › minWastePercent | 0 | % | Project spec (Prompt 2), validation rules | - | |
| units › VALIDATION_LIMITS › maxWastePercent | 25 | % | Project spec (Prompt 2), validation rules | - | |
| 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 | |
| bag-yields › 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. |