Calculate exactly how much flooring material you need, including waste allowance for cuts and mistakes.
Leave blank to see typical price ranges
Getting the right amount of flooring is crucial—too little and you'll have mismatched batches, too much and you've wasted money. Here's how to calculate accurately.
Flooring needed = Room area × (1 + Waste factor)
For a 12×14 foot room (168 sq ft) with 10% waste: 168 × 1.10 = 185 sq ft needed
You'll never use 100% of the flooring you buy. Some is lost to:
| Waste % | When to Use |
|---|---|
| 10% | Standard rectangular rooms with planks running parallel to walls |
| 15% | L-shaped rooms, diagonal hardwood, or large-format tiles |
| 20% | Herringbone, chevron, or complex tile patterns |
| Type | Installed Cost | Best For |
|---|---|---|
| Hardwood | $8-15/sq ft | Living areas, adds home value |
| Laminate | $2-8/sq ft | Budget-friendly, DIY-friendly |
| Vinyl Plank (LVP) | $3-10/sq ft | Moisture-prone areas, durability |
| Ceramic Tile | $10-20/sq ft | Bathrooms, kitchens, entryways |
| Carpet | $3-12/sq ft | Bedrooms, comfort, sound dampening |
For L-shaped or irregular rooms, break the space into rectangles, calculate each separately, then add them together. Our Room Size Calculatorcan help, or use Room Sketch 3D to draw your exact room shape and get precise square footage automatically.
Multiply room length by width to get square footage. Add 10% for simple rectangular rooms or 15% for complex shapes, diagonal installation, or patterned tiles to account for waste from cuts. Our calculator handles this automatically.
Add 10% waste for rectangular rooms with straight installation. Add 15% for L-shaped rooms, diagonal hardwood, or large-format tiles. Add 20% for complex patterns like herringbone. Always keep some extra for future repairs.
Break the room into rectangular sections, calculate each section's square footage separately, then add them together. For L-shaped rooms, calculate as two rectangles. Our Room Sketch 3D app lets you draw any room shape and calculates area automatically.
Prices vary widely: Laminate ($2-8/sq ft installed), Hardwood ($8-15/sq ft installed), Tile ($10-20/sq ft installed), Carpet ($3-12/sq ft installed). Our calculator can estimate total material cost when you enter a price per square foot.
