Flooring Calculator

Free

Flooring · Area, boxes and underlayment · default waste 8%

Enter your measurements

Numbers start at typical defaults — change anything. Every result states the inputs and assumptions used.

Room length(ft)

Room width(ft)

Flooring type

Waste factor(%)

Applied once to each material quantity, then rounded up to the orderable increment.

Product assumptions — editable3

Sheet sizes, coverage rates, bundle counts, bag yield and similar come from the product you are buying. Change any of them to match your supplier — whatever you set is shown again with the result.

Coverage per box(sq ft)

Take this from the box you are buying — it varies by product and by plank length.

Underlayment coverage per roll(sq ft)

Used for LVP, laminate and engineered hardwood. Rolls are commonly 100 or 200 sq ft.

Thinset coverage per bag(sq ft)

Used for tile. Coverage depends on trowel notch size — check the bag.

Enter your measurements and press "Calculate materials" to see the calculated quantity, waste-adjusted quantity and recommended order quantity.

What this calculator does

•Room area = length × width
•Boxes = room area ÷ coverage per box
•Recommended order = boxes + waste, rounded up to whole boxes
•Underlayment rolls = room area ÷ roll coverage (LVP, laminate, engineered)
•Thinset bags = room area ÷ bag coverage (tile)

Deterministic by design: no AI, no lookups, no network calls — the same inputs always give the same numbers. Product values such as coverage rates and bundle counts are editable and shown with the result.