Hardwood Flooring Calculator

Plan single-width or repeating mixed-width wood flooring and keep fastening and site-finish quantities separate.

Your measurements

Editable example

Use the unit on each label. You can also type feet and inches with ft and in, or the marks on your tape measure.

Room 1

Room length (ft)Room width (ft)Area left uncovered (sq ft)

Length unitsChanges the dimensions labeled ft or m without a fixed unit. Thickness, openings and package sizes keep the inches, square feet, cubic feet and gallons shown on their labels.Extra for cuts (%)Board widths

Package sizes, prices and materials

Planks run alongPlank length (in)Plank face width (in)Perimeter gap from product instructions (in)Offset of alternating rows (in)Carton coverage (sq ft)Your price per carton ($)Fastening interval from plan (in)Finish coverage per container (sq ft)Site-applied finish coats

Example: replace these measurements

Your material list

7 cartons by area

120 sq ft measured

Shopping list & save options

Net room area: 120 sq ft
Area with allowance: 132 sq ft
Unassigned purchased coverage: 20 sq ft
Cut-layout carton allowance: 8 cartons; no offcut reuse
Whole plank positions: 50
Cut plank positions: 20
Offcut area before reuse: 20 sq ft
Room 1: 120 sq ft · 20 rows · 70 plank positions
6-inch width positions: 70
Finish containers: No site-finish coats entered
Fastening positions before end rules: Enter the fastening interval
Carton subtotal for area allowance: Enter your unit price

Area cartons and the conservative cut allowance answer different questions. Exclusions affect area only; split rooms around obstacles for a cutting layout.

First room, rotated so planks run across the drawing. Rows show the entered widths and alternate start offset. Large layouts draw the first 1,800 positions. Cuts consume one plank each; no offcut reuse is assumed.

The calculation

120 × (1 + 10/100) ÷ 20, rounded up = 7
Cut allowance: 70 plank positions with 20 sq ft offcut; no reuse assumed.

Material price trends, separate from your quote

These U.S. producer indexes track material prices over time. They are not store prices, labor rates or local installed costs. We do not use them to increase a historical project median.

Historical household spending: the national 2023 AHS median for flooring, carpeting, paneling and ceiling tile was $3,000. Flooring, carpet, paneling and ceiling tiles share this broad category. It is not a laminate, vinyl or hardwood rate. This broader category does not price your specific job.

Lumber

+7.6% from August 2025 to August 2026. Latest observation is preliminary and may be revised.

BLS producer index, not seasonally adjusted
Period	Index level, not dollars
August 2025	266.293
August 2026	286.633

U.S. Bureau of Labor Statistics · Updated 2026-09-20. Use your quoted unit price in the material calculator; delivery, tax, preparation and labor remain separate.

Before ordering, use the flooring cartons, layout & waste planning guide to check the inputs and take the right questions to the supplier. Choose another calculator.

How to plan the quantity

Mixed-width mode repeats the first, second and third board widths. It counts each width separately across the room. This is a specified repeating layout, not a random-length carton optimizer.

Length and stagger use an equal-length example. For assorted lengths, cartons still follow their label coverage; confirm the cut allowance against the actual bundle mix.

Site finish is counted only if you enter coats and product coverage. Factory-finished flooring may need no site coating; the tool does not choose it.

Before you order

Moisture, acclimation, grade, species, fastening and the installation method belong to the chosen product and accepted plan.
Parquet and complex patterns need their own measured layout; area cartons alone cannot specify cuts.