Determine the number of modular bricks needed for the wall in Figure 12.25. Assume that 675 bricks are required for 100 square feet of wall. Add 4 percent for waste.
What will be an ideal response?
Find the net area of the wall and number of bricks as follows:
Gross wall area (sf) = 8? × 30? + 10? × 24? + 0.5 × 4? × 24? = 528 sf
Areas of openings (sf) = 4? × 4? + 6?8? × 3? + 7? × 16? = 148 sf
Net area of wall (sf) = 528 sf – 148 sf = 380 sf = 3.8 sq
Number of bricks = 3.8 sq × 675 bricks per sq = 2,565 bricks
Add waste.
Number of bricks = 2,565 bricks × 1.04 = 2,668 bricks
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