How many 600 × 600 tiles are needed for 100 square feet?

One 600 × 600 mm tile covers 3.875 sq ft, so 100 sq ft needs about 26 tiles, or 29 with 10 % wastage.

How much extra tile should I buy?

About 10 % for straight laying and 15 % for diagonal or patterned laying, plus a few spares for later repairs.

How many tiles are in a box?

It depends on the size and the maker: commonly 4 tiles of 600 × 600 mm, 2 of 600 × 1200 mm or 3 of 800 × 800 mm. Check the box.

Tile calculator

Tiles and boxes for a floor or wall in square feet or square metres, for 600 × 600, 600 × 1200, 800 × 800 and other sizes, with wastage.

Calculate

Area

Measured in

Tile size

Wastage allowance

10 % for straight laying; 15 % for diagonal.

Tiles per box

Printed on the box; leave empty if not known.

Area: 13.94 m² (150 sq ft)
Tiles to cover it: 38.7
To order (with 10 % wastage): 43 tiles
Boxes: 11

How it is calculated

The number of tiles is the area to cover ÷ the area of one tile. One square metre is 10.76 square feet, so a room measured in square feet is converted first.

Cutting at walls, corners and fittings, and the odd broken tile, mean more tiles are bought than the area needs: about 10 % for a straight layout and 15 % for a diagonal one. Buy all the tiles from one batch, as shades vary between batches.

Tiles are sold by the box. With the pieces per box, the calculator rounds up to whole boxes.

An estimate for ordering material, not a structural design. Your engineer's drawings and site measurements decide the final quantities.

Questions

How many 600 × 600 tiles are needed for 100 square feet?: One 600 × 600 mm tile covers 3.875 sq ft, so 100 sq ft needs about 26 tiles, or 29 with 10 % wastage.
How much extra tile should I buy?: About 10 % for straight laying and 15 % for diagonal or patterned laying, plus a few spares for later repairs.
How many tiles are in a box?: It depends on the size and the maker: commonly 4 tiles of 600 × 600 mm, 2 of 600 × 1200 mm or 3 of 800 × 800 mm. Check the box.