Laminate, Hardwood & Vinyl Plank Flooring Calculator
Work out how much flooring you need — the boxes of laminate, hardwood or vinyl plank (LVP) to buy from the room size, the box coverage and a waste allowance — plus optional underlayment and cost. Add several rooms into one order. Works in feet (metres). Everything runs on your device.
Guide: How Much Flooring Do I Need? (Laminate, Hardwood, Vinyl)Your room
Boxes, waste & prices
Rooms — whole job
Flooring several rooms? Press Add room to list on each — the combined boxes, floor area and cost total up here (boxes pool across rooms, so this beats ordering per room).
Add these quantities to a quote
Sends 1 line item to the quote builder — just add your prices.
Buy whole boxes, keep a spare
Flooring is sold by the box, so you always buy a little more than the floor area — the waste allowance also covers the offcut at the end of each row and a few damaged planks. Keep one unopened box from the same batch for future repairs; a later top-up rarely matches the run.
Questions & answers
Everything you need to understand the laminate, hardwood & vinyl plank flooring calculator.
How much flooring do I need?
Divide the room area by the coverage of one box, then add waste and round up to whole boxes. A 12 × 15 ft room (180 sq ft / 16.7 m²) with boxes covering 20 sq ft (1.86 m²), at 10% waste, needs 180 × 1.10 ÷ 20 ≈ 9.9 → 10 boxes. The box coverage is printed on the label and varies by product, so enter your actual figure — the calculator does the rest.
How much waste should I add for flooring?
About 10% for a straight-laid floor in a simple rectangular room — it covers cutting to the walls, the offcut at the end of each row (which often starts the next), and a few damaged planks. Go to 15% for a diagonal layout, a herringbone pattern, lots of doorways and jogs, or long random-length hardwood where you cull boards for color. Keep a spare unopened box for future repairs.
How many boxes of laminate, hardwood or vinyl plank do I need?
It comes down to the box coverage. Laminate and vinyl plank boxes commonly cover about 20–24 sq ft (1.9–2.2 m²); solid hardwood is often around 18–20 sq ft (1.7–1.9 m²) per box. Pick the flooring type for a typical figure, then override it with the coverage on your box — boxes = room area × (1 + waste) ÷ box coverage, rounded up.
Do I need underlayment?
Floating floors — most laminate and click vinyl plank — need an underlayment for cushioning, sound and moisture, unless the planks have it pre-attached. Glue-down and nail-down floors (much solid hardwood, some LVP) usually do not. Underlayment is priced separately per square foot of floor, so it is its own line in the estimate; enter a price to include it.
Is flooring priced per box or per square foot?
Both — retailers quote a per-square-foot price but sell whole boxes, so you pay for the boxes (a little more than the floor area). This calculator charges the flooring on the area you actually buy (boxes × coverage), and underlayment and labor on the room area. If you have a per-box price, divide it by the box coverage for the per-sq-ft figure.
Laminate vs hardwood vs vinyl plank — does it change the count?
The method is identical; only the typical box coverage and waste differ. Solid hardwood usually has smaller boxes and a bit more waste (you cull for color and grain); laminate and vinyl plank (LVP) have larger boxes and less waste and click together over an underlayment. Pick the type for sensible defaults, then confirm the coverage on your product.
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