Flooring Calculator
Calculate how much flooring material you need based on room dimensions and waste factor.
Calculator Updated: 8/21/2025
Flooring Calculator
Use this calculator to determine how much flooring material you’ll need for your project based on room dimensions and waste factor.
How to Use This Calculator
- Measure the length and width of your room in feet
- Decide on a waste factor (typically 5-10% for standard rooms, 10-15% for complex layouts)
- Enter the values below to calculate the amount of flooring needed
Flooring Calculator
Understanding Flooring Calculations
Flooring calculations require careful consideration of several factors:
- Room dimensions: Measure length and width at multiple points and use the largest measurements
- Waste factor: Accounts for cuts, mistakes, and future repairs
- Pattern matching: Some flooring materials require extra material for pattern matching
- Obstacles: Subtract areas for permanent fixtures like columns or built-ins
Recommended Waste Factors
- Standard rectangular rooms: 5-7%
- Rooms with obstacles or irregular shapes: 10-15%
- Diagonal installations: 15-20%
- Patterned materials: 15-25%
- Luxury vinyl plank with complex patterns: 20-30%