Many possibilities exist: for example 32 ft x 10 ft.
40*40 = 1600 square feet
40 square feet = 4.4 square yards.
40 square yards = 360 square feet.
30 x 40 = 1200 square feet.
40 square meters = 430.56 square feet.
40 square meters are 430.556417 square feet.
40 square feet = ~3.72 m2
40' x 40' (1,600 square feet) = 177.77 square yards.
14' x 40' = 560 square feet
40 square feet.
1,600 square feet. Multiply length by width - the result is the area in square feet.