Depends on the size of each block.
12' x 12' = 144 square feet.
12 foot x 12 foot is 16 square yards
12 square yards.
A square foot is measured 12''x12'' x12''x12'', or a 12'' square.
144 square feet.
0
1 square foot is 12" x 12" or 144 square inches in total.
23.41 square meters.
60 square feet
4.46 square metres.
144 12x12
1 foot = 12" a square foot is 12" x 12" therefore: 1 sq/ft = 144 sq/in