Reference
Reference tables
The figures the calculators use, on their own pages with their sources, so you can look them up, check them or cite them.
Every default in a calculator on this site comes from one of these tables, and every table names its source and the date it was last reviewed. If a figure on your product's label or in a quote is different, use yours: the tables are a starting point and a check, not a substitute for the label.
Coverage per box, carton and roll
What a box, carton or roll of tile, wood, laminate, vinyl, carpet, pad, underlayment and rubber typically covers, with the products behind each figure.
Waste factors by material and layout
The waste percentages for straight, diagonal and herringbone layouts of every material, and the adjustments for room shape, grade, pattern and installer.
Grout and thinset coverage tables
Pounds of grout per 100 sq ft by tile size, thickness and joint; thinset per bag by trowel; self-leveler by depth; with the manufacturers’ figures.
Installation labour rates and cost ranges
Material, labour, supply and removal ranges per square foot, crew output, lifespans, BLS wages and electricity prices behind the cost calculators.
Flooring weights per square foot
What tile, stone, mortar, wood, laminate, vinyl, carpet and rubber weigh, box and pallet weights, and the floor loads they are compared with.
Standard flooring sizes
Tile, plank, roll, sheet, trim, transition, stair, door and rug sizes in US and metric units, for estimating.