Material estimator

Flooring Calculator

Estimate flooring square footage, waste, box count, and material cost for laminate, vinyl, engineered wood, and hardwood.

How This Calculator Works

Flooring is purchased in boxes, not perfect square-foot slices. This calculator turns room area into a box count with a waste factor and optional box price.

Formula

Boxes needed = area with waste / square feet per box, rounded up.

Assumptions

Straight-lay floors often use 5-10% waste. Diagonal layouts, plank staggering, closets, and complicated cuts can push waste higher.

Example

A 15 ft by 12 ft room is 180 sq ft. With 10% waste and 23.5 sq ft per box, buy 9 boxes.

Before You Buy

Box counts matter more than exact square footage because stores sell whole boxes, not loose planks.
Use 5-10% waste for simple straight layouts and more for diagonal rooms, closets, stairs, or heavy cuts.
Keep one unopened box if the color or dye lot might be discontinued.

Common Questions

What waste factor should I use?

Use 5-10% for simple straight layouts and 12-15% for diagonal, patterned, or cut-heavy layouts.

Should I round boxes up?

Yes. Flooring boxes are purchased whole, and keeping one extra box can help with future repairs.

Does this include underlayment?

No. Underlayment, transitions, trim, adhesive, and tools are separate.