Flooring Calculator
Flooring coverage, cartons, allowance and optional material cost.
Your project
Combine nonoverlapping rooms for one flooring product, or enter a known net floor area.
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How flooring coverage is calculated
Add the unrounded areas of all nonoverlapping rooms, or enter the net measured floor area. No fixtures are subtracted automatically.
Net area → required coverage = net × (1 + waste) → whole cartons = ceil(required ÷ coverage per carton)Waste is an editable planning reserve, not a universal installation rule. Pool room area before applying waste and rounding cartons. Package surplus is purchased coverage minus required coverage; it is separate from the waste allowance.
Optional material cost
With cartons, a per-area quote uses purchased coverage. Without cartons, it uses required coverage including the reserve. A per-carton quote uses whole cartons. Prices are your USD estimates and exclude tax, delivery and labor.
Worked examples
Rooms of 12 × 10 ft and 8 × 6 ft total 168 ft². A 10% reserve needs 184.8 ft². At 20 ft²/carton, buy 10 cartons covering 200 ft² with 15.2 ft² package surplus. At $3/ft² of purchased coverage, the subtotal is $600.00.
A known 25 m² net area with 5% reserve needs 26.25 m². At 2.2 m²/carton, 12 cartons cover 26.4 m² with 0.15 m² surplus. At $35/carton, the subtotal is $420.00.
This is an area/material coverage estimator, not a plank/roll cutting layout. No underlayment or baseboard quantities are included.
