Sheet set A · Architectural
Masonry
Block, brick, mortar and grout.
Issued
1 of 2In the set, not issued
Mortar Calculator
Mortar by bag and by batch for block and brick, with sand and lime proportions.
Not issuedQuick reference
| Nominal wall thickness | Every cell | Every 16 in | Every 32 in |
|---|---|---|---|
| 6″ | 25.6 | 12.8 | 6.4 |
| 8″ | 36.1 | 18.05 | 9.03 |
| 10″ | 47 | 23.5 | 11.75 |
| 12″ | 58.9 | 29.45 | 14.73 |
| 14″ | 74.5 | 37.25 | 18.63 |
The first column is the published row for two-core hollow units, with three percent waste already inside it; the other two are that row times eight divided by the spacing, which is how the table itself is built, so nothing is reproduced that was not read. It comes from CMHA TEK 04-02A, Estimating Concrete Masonry Materials, alongside the two figures every block takeoff turns on: a conventional unit shows 0.8889 square feet of face, so a hundred square feet of wall takes 119 units once the five percent allowance for waste and breakage is in. Mortar is the other half: 30 units to a bag of masonry cement or 62 to a bag of portland cement, which is 34 or 17 bags for a round 1,000 blocks. Nominal against specified dimensions — three eighths of an inch apart, joint included — comes from NCMA TEK 2-1B. Both are printed in full on sheet A-201. Block weight, pallet counts, rebar and prices are not here: nothing we opened publishes them.