How many 13x13 inch tiles do you need to cover 300 sq ft?

Answer 1

300 sq ft = 300*12*12 = 43200 sq inches.

So number of tiles required = 43200/(13*13) = 43200/169 = 255.6 tiles

So a minimum of 256 tiles would be required. But that assumes that all the off-cuts are utilised - NOT a reasonable assumption. Normally a minimum margin of 5% is advised.