Calculate how many boxes of flooring, such as laminate, vinyl plank or hardwood, you need to cover a room.
Google AdSense Banner
This area will contain advertisements after approval.
Google AdSense Banner
This area will contain advertisements after approval.
This calculator multiplies your room's length and width to find its area, adds your chosen waste percentage to account for cuts and offcuts, then divides that total by how much area a single box of flooring covers, rounding up to a whole number of boxes.
10% is a typical default for straightforward rectangular rooms. Rooms with lots of corners, closets or angled walls, or flooring installed diagonally, generally need a higher allowance since more cutting is involved.
For a 12 ft × 10 ft room (120 sq ft), boxes covering 20 sq ft each, with a 10% waste allowance: area including waste = 120 × 1.10 = 132 sq ft. Dividing by 20 sq ft per box: 132 ÷ 20 = 6.6, rounded up to 7 boxes needed.
Using a generic coverage-per-box figure instead of the one printed on the actual product, coverage per box varies by plank size and brand, using a wrong or estimated figure can lead to ordering too few or too many boxes.
Applying too low a waste allowance for a room with lots of corners, closets or diagonal installation, those situations require more cutting and offcuts than a simple rectangular room, and often need 15% or more.
Forgetting that boxes must be purchased as whole units, this calculator rounds up to the next full box automatically, buying the unrounded fractional amount would leave the job short.
This is printed on the flooring product's packaging or listed on the retailer's product page, it varies by plank size and brand, so check your specific product for an accurate figure.
It's wise to round up to the nearest full box and keep any leftover material for future repairs, since matching a discontinued flooring style later can be difficult.
Google AdSense Banner
This area will contain advertisements after approval.