First find the area in sq. ft. for face brick:
Rectangle of wall 18' × 25' = 450 sq. ft.
Gable triangle 12' × 25' = 300 - 2 = 150 sq. ft.
Total area 600 sq. ft.
Deduct the 5 window openings, thus:
4 × 3'-6" × 5'-2" = 72-1/3 sq. ft.
1 × 2'-6" × 4'-2" = 10-5/12 sq. ft.
Window openings to be deducted 83 sq. ft.
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=Total area to be covered with face brick= 517 sq. ft.
By Table 1, it takes 6.5 standard
size face brick per sq. ft. for Running
Bond with a 3/8" joint.
Hence, 517 × 6.5 = 3,360
Add 16-2/3% as per Table 2 560
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Number of face brick required 3,920
=Total of face brick to be ordered= 4,000