How many pieces of 2x4 tile I need to cover 6500 sf?

Answer 1

Each 2" x 4" tile = 8 square inches. 6500 square feet = 78,000 square inches. So 78,000 divided by 8 = 9,750 pieces of tile. If you are measuring in feet, then each 2' by 4' tile = 8 square feet. 6500 divided by 8 = 812.5 pieces of tile.

Answer 2

The answer depends on the units used for 2x4. It also depends on the shape of the area that you wish to cover and whether you want to and are able to use all the off-cuts.

Answer 3

You need to know the dimensions of the tile (the unit is not mentioned in the question) and to calculate the area of a tile.
6 500 sq fts/area of a tile in sq ft = number of tiles