FloorCalc

Flooring & tile calculator

Enter your room size, flooring type, and layout pattern to get the boxes you need — with the correct waste factor for straight, diagonal, or herringbone — plus the cost. Free, no signup.

Waste factor is set by the layout pattern. Box coverage defaults to 24 sq ft — override it to match your product.

Enter your room size or area to see how many boxes you need.

Frequently asked questions

How much flooring do I need?

Measure the room area (length × width), add a waste factor for your layout — about 10% for a straight lay, 15% diagonal, 20%+ herringbone — then divide by the square feet per box. A 12×16 room (192 sq ft) needs about 9 boxes of LVP. Enter your room above for an exact count.

How much waste should I add for flooring?

Add roughly 10% for a straight or grid layout, 15% for a diagonal (45°) lay, and 20% or more for herringbone or chevron. Irregular room shapes and lots of doorways add more. This calculator applies the right factor automatically when you pick a pattern.

How many square feet are in a box of flooring?

It varies by product: luxury vinyl plank is often around 24 sq ft per box, laminate about 20, hardwood about 20, and tile about 15. Always check your specific product and enter its coverage in the calculator for an accurate box count.

How much does new flooring cost?

Installed costs run about $3–$8 per square foot for LVP and laminate, $6–$14 for engineered wood, $8–$18 for solid hardwood, and $7–$20 for tile. A 200 sq ft LVP floor is roughly $600–$1,600 installed.