Planning & EstimatingCâu 488 / 700
You need to order 15 pieces of dimensional lumber, each a 2x10 that is 20 ft long. What is the total board footage for this order?
a.333 board feet
b.500 board feet
c.250 board feet
d.600 board feet
Giải thích
Board feet per piece = (nominal thickness in inches x nominal width in inches x length in feet) / 12 = (2 x 10 x 20) / 12 = 400 / 12 = 33.33 board feet per piece. For 15 pieces: 33.33 x 15 = 500 board feet. Option a (333) is only 10 pieces. Option c (250) halves the count. The divide-by-12 converts board-inches to board feet.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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