posted by Kel .
A square is 10.5 sq ft by 10.5 sq. ft. The tiles used are 1 sq. ft. How many tiles will be used to fill the space?
For 10x10 = 100 tiles
Now the question remains about the other half-foot. You will need another 20 tiles split in half to get the half-foot done. For the corners, you will need 4 1/2 sq. ft. tiles from one tile.
So, without errors in cutting, I would say 121 tiles.