Quantities for Various Bonds
As Table 1 gives the quantities for standard size brick laid in Running Bond, additional allowances must be made for the number of brick when other bonds using headers are employed. The following percentages are to be added to the number of brick required, as calculated by the use of Table 1, when the face brick are laid in the bonds indicated:
TABLE 2
Percentages Added for Various Bonds
| Common (full header course every 5th course) | 20% (1/5) |
| Common (full header course every 6th course) | 162/3% (1/6) |
| Common (full header course every 7th course) | 141/3% (1/7) |
| English or English Cross (full headers every 6th course) | 162/3% (1/6) |
| Flemish (full headers every 6th course) | 52/3% (1/18) |
| Double Header (two headers and a stretcher every 6th course) | 81/3% (1/12) |
| Double Header (two headers and a stretcher every 5th course) | 10% (1/10) |
For garden walls, porch walls, and other places where an 8-inch wall is used, with face brick on both sides, no additional brick are required for any type of bond.
For walks and floors where the brick are laid on edge, in any pattern except diagonal ones, calculate as you would for the number of face brick in a wall laid in running bond. For her- ring-bone pattern or other diagonal work, an additional number of brick will be required to compensate for the clipping of the ends of the brick at the borders. The exact additional amount depends on the total width of the walk or floor, as the wider the surface the smaller will be the average wastage per square foot. Walks and floors where the brick are laid flat require one-third less than the number required where the brick are laid on edge.
Provided with these tables, it is a simple matter to calculate the number of face brick required for every job.
Thus, estimate the total area of wall surface in square feet, deduct all openings, except those 10 square feet or less, and taking into consideration the mortar joint, multiply the result by the number of brick per square foot as shown in Table 1. This will give you the number required for Running Bond. For other bonds simply add to the number of brick obtained for Running Bond the percentages as given in Table 2. Soldier courses make no difference in the count; nor do rowlock courses, if half brick only are used. Although window sills laid rowlock fashion require additional brick, these are amply provided for in the usual allowances for wastage.