Formula
Floor area = length x width x number of rooms. Area with waste = floor area x (1 + waste percentage). Boxes needed = ceiling(area with waste / coverage per box).
Floor material estimator
Flooring Calculator
Estimate floor area, number of flooring boxes, waste allowance, and material cost. Use this calculator for laminate, vinyl plank, hardwood, tile, carpet, and other flooring projects.
Calculate flooring materials
Floor area
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Area with waste
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Boxes needed
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Estimated material cost
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Example
A 12 ft by 10 ft room is 120 sq ft. With 10% waste, estimate 132 sq ft. If each box covers 24 sq ft, you need 6 boxes.
Useful for
Laminate, vinyl plank, hardwood, engineered wood, tile, carpet, DIY renovations, and contractor material estimates.
Flooring estimate notes
Add more waste for diagonal layouts, patterned tile, small rooms, closets, stairs, damaged boards, and cuts around cabinets or doorways. Always check the coverage listed on the product box.
FAQ
How much waste should I add for flooring?
A common starting point is 5% to 10%. Complex layouts, diagonal patterns, tile cuts, or future repair stock may need more.
Should I round up boxes?
Yes. Flooring is sold by box or bundle, so round up to whole boxes and keep leftover material for repairs.