Posted by Dale on Saturday, February 13, 2010 at 9:09pm.
Because the boards are 2 inches thick, each square foot of deck area is 2 board feet. You have not told us what the area of the deck is.. only that you are using 16' long boards of 2"x6" cross section. each of this boards is 2*(1/2)*16 = 16 board feet. 48 boards is indeed 768 b.f.
Your deck area must be 48 boards x 8 s.f/board = 384 s.f. It might be 24 x 16 feet, but you don't tell us. They should have specified the deck area somewhere.
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