Flooring Calculator
Interior · Updated July 2026
Enter your room area and the coverage per box to find how many boxes of laminate, hardwood, or vinyl flooring you need — with waste included.
Your project
Results
Estimates only. Add extra for waste and confirm with your supplier.
Don't want to measure?
Coming soonSnap a photo of your space and let AI estimate the dimensions — then auto-fill this calculator and get a shopping list with real store prices.
How much flooring do I need?
Measure the room's square footage, add 10% for waste, then divide by the coverage listed on each box and round up.
Ordering flooring by the box
Measure the room's square footage, add 10% for waste (up to 15% for diagonal or plank patterns), then divide by the coverage printed on each box and round up. Buy it all at once from one lot for color consistency.
Acclimation and underlayment
Let laminate and hardwood acclimate in the room for 48 hours before installing so boards don't gap or buckle later. Most floating floors also need underlayment — factor that into your budget.
How to use this calculator
- 1Measure your room area in square feet.
- 2Check the box for its coverage in square feet.
- 3Set waste % and read the number of boxes.
Frequently asked questions
How much extra flooring should I order?
Add 10% for standard layouts and up to 15% for diagonal patterns or rooms with many angles.
How much extra flooring should I order?
Add 10% for standard layouts and up to 15% for diagonal or complex rooms.
How many boxes of flooring do I need?
Divide your room's square footage (plus waste) by the coverage per box and round up.
Related calculators
Get early access to My DIY Calculator Pro
Be first to try AI photo measuring and the smart shopping list with real store prices. No spam — just the launch.