1. Measure each room
Measure length and width of every room in feet. Sum room areas for total flooring square footage.
What is flooring square footage?
Flooring square footage is the total floor area receiving new material. Measure length × width of each room and sum the totals. A 12 × 14 ft (3.66 × 4.27 m) room is 168 sq ft (15.6 m²). For specific materials, use the tile calculator or carpet calculator.
Getting started
How to Calculate Square Footage for Flooring
To calculate flooring square footage, measure length and width of every room receiving new flooring in feet. Multiply length × width for each room and sum the totals. Add a 10-15% waste factor for cuts and pattern matching.
2. Add waste factor
Add 10-15% extra. Diagonal patterns or complex layouts need 15-20% extra.
3. Order in correct units
Hardwood and laminate sell per square foot. Carpet sells per square yard. Vinyl planks sell per box.
Quick reference
Reference
1 acre = 43,560 square feet
1 square yard = 9 square feet
1 square meter = 10.764 square feet
1 square inch = 0.00064516 square feet
Material pricing
Calculate Cost of Materials
Flooring area times price per unit equals material cost. Hardwood costs $4-12 per sq ft. Laminate costs $1-5 per sq ft. Carpet costs $2-12 per sq ft installed.
There are 2 steps to calculate material cost:
- Enter the price per square foot for hardwood, laminate, or vinyl. For carpet, enter price per square yard.
- The Square Foot Calculator multiplies flooring area by your price including waste factor for material cost.
Flooring installation labor adds $2-6 per sq ft. A 168 sq ft room with mid-range hardwood costs $1,200-2,000 in materials.
FAQ
Frequently Asked Questions
How do I calculate square feet for flooring?
Measure room length and width in feet, multiply them together, then add 10% for waste. A 12x10 room needs 120 sq ft + 12 sq ft waste = 132 sq ft of flooring material.
How much flooring do I need for a 12x12 room?
A 12x12 room requires 144 square feet of flooring, plus 10% waste = 158.4 sq ft. Round up to 160 sq ft when ordering. Most hardwood and laminate boxes cover 20-25 sq ft each.
How do I calculate flooring for multiple rooms?
Calculate each room separately (length x width), add waste to each, then sum the totals. Use the quantity field in the calculator if rooms are the same size.
How much waste factor should I add for flooring?
Add 10% waste for standard straight-lay installations and 15% for diagonal or herringbone patterns. Complex room shapes with many cuts may require up to 20% extra material.
How do I calculate flooring cost per square foot?
Multiply total square footage (including waste) by the price per square foot. For example, 160 sq ft of hardwood at $4.50/sq ft = $720 for materials. Add installation cost ($3-8/sq ft) separately.
How many boxes of flooring do I need?
Divide your total square footage (with waste) by the coverage per box. If each box covers 22 sq ft and you need 160 sq ft total, order 8 boxes (160 / 22 = 7.27, round up).
REFERENCES
Further Reading & References
Trusted external sources and related sections on this site. External links open authoritative references on Wikipedia and government agencies.
Explore this Square Foot Calculator site
Authoritative external references
- WIKIFlooring — Wikipedia
- WIKIHardwood flooring — Wikipedia
- WIKITile — Wikipedia