400 (20x20) square inches is 2.78 square feet.
401
20x20 = 400 2x4= 8 400/8= 50 needed
400
2x2x2x2x
20x20
1,000,000,000
400
25p
a lot
depends where u buy it?
Well honey, a 20x20 area equals 400 square feet. A sheet of 4x8 plywood covers 32 square feet. So, you'll need 13 sheets of plywood to cover that 20x20 space. Math doesn't lie, darling.