480 inches
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To calculate the amount of lumber needed for the shed, you first need to determine the perimeter of the shed, which is 2(12+20) = 64 feet. Next, calculate the total wall area by multiplying the perimeter by the wall height: 64ft * 8ft = 512 square feet. To find the amount of lumber needed, divide the total wall area by the area covered by each piece of lumber. If you are using standard 8ft long 2x4 lumber, each piece covers 8sq.ft. Therefore, you will need 512sq.ft / 8sq.ft = 64 pieces of lumber for the walls.
1.5
first you need to convert all of the measurements into one units. Lets use ft as the universal unit in this case. 8ft = 8ft (Obviously!) 2in = 1/6ft 3yd = 9ft 8ft by (1/6)ft by 9ft = 12ft Volume = 12ft
is equals to 2*19FT + 2*8FT
672 cubic feet