Flooring Calculator
Estimate exactly how much flooring material to buy for any room shape. Supports tile, hardwood, laminate, vinyl, and carpet with waste factor included.
How It Works
Understand how flooring material estimates are calculated.
Area Measurement
Multiply room length by width for rectangular rooms. For L-shaped or irregular rooms, divide the space into rectangles, calculate each area separately, then add them together. Accurate measurements are critical for a proper flooring estimate.
Waste Factor
A standard 10 percent waste factor accounts for cuts, mistakes, and future repairs. Diagonal installations require 15-20 percent waste because more angled cuts are needed. Always round up to the nearest full box or roll when ordering.
Material Coverage
Different flooring materials come in different unit sizes. Tile typically covers 10 sq ft per box, hardwood 20 sq ft, laminate 15 sq ft, vinyl 100 sq ft per roll, and carpet is sold by the square yard at 9 sq ft per yard.
Frequently Asked Questions
Common questions about measuring and ordering flooring.
The standard waste factor for flooring installation is 10 percent for most rooms. For diagonal installations or rooms with many corners and cutouts, increase waste to 15 percent. L-shaped rooms and rooms with multiple angles typically need 12-15 percent extra material. Always round up to the nearest full box or roll.
Tile and luxury vinyl are the best flooring choices for bathrooms because they are waterproof and easy to clean. Ceramic and porcelain tile offer excellent moisture resistance and durability. Luxury vinyl plank (LVP) provides a warm, water-resistant surface that mimics wood. Avoid hardwood and standard laminate in bathrooms unless they are specifically rated for high-moisture areas.
To measure an L-shaped room for flooring, divide the L into two rectangles. Measure and calculate the area of each rectangle separately, then add them together. For example, a 10x12 section plus a 6x8 section gives a total of 120 + 48 = 168 square feet. Add 10 percent waste to your total before ordering material.