Flooring Calculator — Hardwood, Laminate & Vinyl Plank
Figure out exactly how many boxes of flooring you need. Enter your room dimensions, plank size, and box coverage to get an accurate count with waste factored in.
Room & Flooring Details
Full Breakdown
Room Area
Waste Allowance
Total Sq Ft Needed
Plank Size
Sq Ft per Plank
Total Planks
Boxes Needed
Total Cost
How to Use This Calculator
- Enter the room length and width in feet.
- Enter the plank dimensions (check the box label).
- Enter the box coverage in sq ft per box (printed on packaging).
- Set the waste factor — 10% for straight layouts, 15% for diagonal.
- Click "Calculate Flooring" for your estimate.
The Formula
Room Area = Length × Width
Total Sq Ft = Room Area × (1 + Waste%/100)
Plank Sq Ft = (Plank Length × Plank Width) ÷ 144
Total Planks = Total Sq Ft ÷ Plank Sq Ft
Boxes = ⌈Total Sq Ft ÷ Box Coverage⌉
Total Sq Ft = Room Area × (1 + Waste%/100)
Plank Sq Ft = (Plank Length × Plank Width) ÷ 144
Total Planks = Total Sq Ft ÷ Plank Sq Ft
Boxes = ⌈Total Sq Ft ÷ Box Coverage⌉
Waste factor accounts for cuts, damaged pieces, and pattern staggering. Diagonal installations typically require 15% waste; standard straight-lay uses 10%.