🌲 Hardwood Floor Installation Cost Calculator

Hardwood floor installation costs $6–$23 per square foot fully installed, depending on species and finish type:

• Oak (solid, pre-finished, #1 common): $6–$10/sq ft installed
• Oak (site-finished, select grade): $9–$14/sq ft installed
• Maple or hickory: $8–$15/sq ft installed
• Walnut: $11–$18/sq ft installed
• Exotic species (Brazilian cherry, teak): $13–$23/sq ft installed

Labor is typically $2.50–$5/sq ft depending on installation method (nail-down vs glue-down). Site-finishing adds $1.50–$2.50/sq ft to the material cost. Old floor removal adds another $1.50–$2.50/sq ft. A 300 sq ft living room with mid-grade oak runs $2,000–$4,500 total.

The right choice depends on your subfloor and conditions:

• Solid hardwood (3/4"): Lasts 50–100+ years, refinishable 5–8 times. Best over wood subfloor above grade. Cannot go over concrete or radiant heat. Best long-term investment.
• Engineered hardwood: Real wood veneer (2–6mm) over plywood core. More dimensionally stable — handles humidity changes better. Can go over concrete (glue-down) and radiant heat. Refinishable 1–3 times.

For above-grade rooms with wood subfloor: solid hardwood is the better long-term value. For basements, slab-on-grade, or radiant-heat floors: engineered hardwood is the correct choice. Engineered typically costs $1–$3/sq ft less than comparable solid.

Solid hardwood should be refinished every 7–10 years in an average household — sooner in high-traffic areas (hallways, living rooms). Signs it's time:

• Visible scratches that go through the finish coating
• Gray or dark discoloration (oxidation or wear through finish)
• Water stains or dull, dry-looking areas
• The floor no longer responds to cleaning and polishing

Professional refinishing costs $3–$8/sq ft and restores the floor to like-new condition. Solid hardwood can be refinished 5–8 times. Engineered hardwood can be refinished 1–3 times depending on veneer thickness. Between refinishes, screen-and-recoat ($1–$2/sq ft) can extend life by 3–5 years.

Solid hardwood should never be installed directly over concrete — moisture from the slab will cause warping, cupping, and buckling over time. Your options for concrete subfloors:

• Engineered hardwood (glue-down): The best solution. Use a moisture-blocking adhesive. Adds $0.50–$1.50/sq ft for adhesive vs nailing.
• Sleeper system: Install a plywood subfloor over the concrete (with vapor barrier) then nail solid hardwood. Adds $3–$6/sq ft and raises floor height 1.5"+.
• Floating engineered: Click-lock engineered over a foam underlayment and vapor barrier. No adhesive — easier to replace but can sound hollow.

Always test concrete for moisture vapor emissions before installation — use a calcium chloride test or ASTM F2170 relative humidity test. High moisture will void most hardwood warranties.