Tile Backer Board Calculator
Count cement backer boards, screws and joint tape for a tiled wet area.
Imperial / Metric
Renovation & Construction
Flooring, tile and worktops
The surfaces underfoot and on the counter, with what sticks them down.
- 15Calculators
- 15Work in imperial
- 15Work in metric
What this covers
Click floors, laminate and engineered boards by pack; floor and wall tile by the box, with the adhesive under it, the grout between it and the set-out that decides where the first full piece lands; tile backer board for a wet substrate; and worktop area by run of counter.
What decides which one you need
The lay pattern and where the first full piece lands. Straight, brick-bonded, herringbone and diagonal cut the same room's waste from about five per cent to nearer fifteen, and a layout that starts at the wrong wall leaves a sliver against the most-seen edge. The layout page exists for that second question and it is the one people skip.
What this does not cover
Levelling what is there now, and the underfloor heating that goes in before a floor covers it.
Every calculator in this family
15 calculators
Countertop Area Calculator
Calculate total countertop area, including an optional backsplash, for quoting or material ordering.
Imperial / Metric
Floor Sanding and Finish Calculator
Sanding and refinishing a wood floor: the sealer and finish to buy coat by coat, the drum sheets and edger discs per grit, and the screening pads.
Imperial / Metric
Floor & Wall Tile Calculator
Count tiles and boxes for a floor or wall, with the waste factor the lay pattern actually needs.
Imperial / Metric
Flooring Calculator
Estimate how much flooring material to order, with a waste allowance based on material and layout.
Imperial / Metric
Grout Calculator
Work out the grout a tiled floor or wall takes from the tile size, the joint width and the joint depth, by weight and in bags.
Imperial / Metric
Kitchen Unit and Cabinet Run Calculator
How many base and wall units (cabinets) of standard widths fill a straight, L or U kitchen, with the worktop, plinth (toe kick), cornice and panels.
Imperial / Metric
Mosaic Sheet Calculator
Sheets and boxes of mosaic for a wall or floor — with the lower waste a mesh-backed sheet earns, and the grout joint length nobody expects.
Imperial / Metric
LVP, Laminate & Engineered Floor Calculator
Count planks and packs for a click floor, with the waste a long plank in a small room really needs.
Imperial / Metric
Thinset & Tile Adhesive Calculator
Work out the adhesive a tiling job needs from the trowel notch, which is what actually sets the coverage.
Imperial / Metric
Tile Adhesive Calculator
Work out how much tile adhesive an area needs from the trowel notch size and the bedding method, and how many bags that is.
Imperial / Metric
Tile & Grout Calculator
Count the square tiles a floor or wall takes from its length, width and tile size, with a rough grout bag figure from the area alone.
Imperial / Metric
Tile Layout Calculator
Estimate how many individual tiles you need for a floor or wall based on tile size and area.
Imperial / Metric
Tile Levelling Clip and Wedge Calculator
How many levelling clips a floor or wall takes, from the joint length rather than the tile count — and why the wedge number is far smaller.
Imperial / Metric
Wet Room and Curbless Shower Floor Fall Calculator
Set out the fall of a wet room or curbless shower floor to its drain: the depth at the walls, the fall on each face, the screed and the area to tank.
Imperial / Metric