Laminate Flooring Calculator
Calculate the number of laminate planks needed for your floor. Accounts for plank size, room dimensions, and waste for cuts.
Formula & Explanation
The number of laminate planks needed is calculated as: 1. Calculate room area: Area = Length × Width (in square feet) 2. Calculate plank area: Plank Area = (Width × Length) ÷ 144 (converting from square inches to square feet) 3. Calculate planks needed: Planks = Ceiling(Room Area ÷ Plank Area × (1 + Waste Factor)) The waste factor accounts for cuts at edges, corners, and potential breakage during installation. It is expressed as a decimal (0.10 for 10%, 0.15 for 15%, etc.).
Assumptions
- •Room is rectangular with perpendicular walls
- •All measurements are in feet for room dimensions and inches for plank dimensions
- •Planks are uniform size (all planks are the same dimensions)
- •Waste factor of 10% is typical for straight layouts
- •Waste factor of 15% is recommended for diagonal or herringbone patterns
- •Laminate is tongue-and-groove; do not account for expansion gaps in quantity (gaps are installed during finishing)
- •Result is rounded up since you cannot purchase partial planks
- •Calculations do not account for complex layout patterns
Example Calculation
A 12ft × 10ft room (120 sqft) with 8×48 inch laminate planks needs 48 planks base. With 10% waste for cuts and breakage, purchase 53 planks.
Inputs
Results
Common Laminate Plank Sizes
| size | coverage |
|---|---|
| 6" × 48" | 2 sqft |
| 7" × 48" | 2.33 sqft |
| 8" × 48" | 2.67 sqft |
| 12" × 48" | 4 sqft |
| 12" × 60" | 5 sqft |
| 8" × 36" | 2 sqft |
Frequently Asked Questions
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