Epoxy garage floor cost by size and system
Estimates from this calculator's default prices with a diamond-ground floor (acid etch for the DIY kit) and no crack repair. Change the defaults above to match quotes or product prices near you.
| System | 1-car (12 × 20 ft) | 2-car (20 × 20 ft) | 3-car (30 × 22 ft) |
|---|---|---|---|
| DIY kit, materials only | $100–$150 | $200–$300 | $300–$460 |
| Pro 100% solids epoxy, two coats | $1,550–$2,350 | $2,250–$3,350 | $3,350–$5,050 |
| Flake system, clear epoxy top | $1,900–$2,850 | $2,800–$4,200 | $4,250–$6,350 |
| Flake system, polyaspartic top | $1,950–$2,900 | $2,900–$4,300 | $4,400–$6,600 |
Epoxy floor cost per square foot
With these defaults, a pro-installed coating comes to about $7.02 per sq ft for two coats of 100% solids epoxy, $8.71 for a flake system with a clear epoxy topcoat and $9.01 with a polyaspartic topcoat, for a 2-car garage. Smaller floors cost more per sq ft because setup and return trips are spread over less area: the flake system is $9.84 per sq ft for a 1-car garage and $8.04 for a 3-car. A DIY kit is about $0.51–$0.63 per sq ft across these sizes, varying because kits are bought whole.
How much does it cost to epoxy a garage floor?
For a 2-car garage of 400 sq ft, the default flake system comes to about $2,800–$4,200. Materials are about $920 of that: 2.5 gallons of base coat, 60 lb of flake and 3.3 gallons of clear topcoat, plus grinding pads. Labor is 28 worker hours to set up, grind, coat, broadcast flake, scrape and topcoat over more than one visit.
Cracks add to it. With 25 ft of cracks to repair, the same garage comes to about $3,000–$4,500, and with 50 ft about $3,200–$4,800. Large cracks, spalling or a floor that moves need repair before any coating.
DIY kit vs a professional system
A big-box DIY kit is water-based epoxy you roll on in one coat over an etched floor. For a 2-car garage, two kits cost about $252 with these defaults, and the work is about 8 hours of your time plus cure time. The same garage done by a pro as a ground, full-flake system comes to about $3,484 in the middle of the estimate.
The difference is thickness and prep. A pro system is 100% solids epoxy over a diamond-ground surface, with a flake layer and a topcoat; a one-coat kit is far thinner over an etched floor. Thin coatings over poorly prepared concrete are more likely to lift under hot tires. If you want a pro-type system yourself, materials for the flake system are about $920 for 400 sq ft, but you'd need to rent a grinder and work within short pot lives.
What changes the price
- Surface prep: grinding opens the concrete so the coating bonds. Old sealers, paint or oil stains take extra work.
- Moisture: concrete with moisture coming up through it can make coatings fail. Installers often test first.
- Cracks and pitting: each foot of crack needs routing and filling.
- Topcoat: polyaspartic costs more per gallon but cures faster, often letting a job finish in a day.
- Flake coverage and color: full broadcast uses more flake than a light sprinkle; metallic and quartz systems cost more.
How this estimate works
Gallons follow our epoxy calculator's floor mode: sq ft × coats ÷ coverage, with 100% solids epoxy at 160 sq ft per gallon per coat and water-based at 250. Base coat epoxy is $120 a gallon, and a DIY kit is $120 for about 250 sq ft. Flake systems use 0.15 lb of flake per sq ft at $3 a lb, and a topcoat at 120 sq ft per gallon: $120 for clear epoxy, $150 for polyaspartic. Grinding pads are $0.10 per sq ft and etch $0.03. Crack filler is $1.50 per foot.
Labor follows the calculator: 0.02 worker hours per sq ft to grind (0.01 to etch) plus 0.01 per layer, with the flake broadcast counted as a layer, and 0.1 hours per foot of crack. Pro systems add 8 hours per job for setup, equipment and return trips between coats. Labor is billed at $85 per worker hour, including the installer's overhead and profit, and the markup on materials is 20%; the DIY kit has neither. The range is the result minus 20% to plus 20%. Change any of these above.
For comparison, Homewyse lists $7.78–$12.71 per sq ft to epoxy coat a garage floor (May 2026 figures, accessed November 2026); with these defaults, the flake system on a 2-car garage comes to about $8.71 per sq ft.
Getting quotes
Compare quotes on prep method (grinding or etching), the base coat's solids content and thickness, flake coverage, topcoat type, crack repair, stem walls and the warranty.
Questions
How much does it cost to epoxy a 2-car garage?
With this calculator's typical defaults, a 400 sq ft 2-car garage comes to about $2,250–$3,350 for two coats of 100% solids epoxy and $2,800–$4,200 for a flake system. DIY kits for the same floor are about $252.
How much does epoxy flooring cost per square foot?
About $7.02 per sq ft installed for 100% solids epoxy, $8.71 for a flake system and $9.01 with a polyaspartic topcoat, on a 2-car garage with these defaults.
Is a DIY epoxy kit worth it?
It's much cheaper, about $252 against roughly $3,484 for a pro flake system on a 2-car garage here. Kits are thinner and go over an etched floor, so they're more likely to wear or lift, especially where hot tires park.
How long does an epoxy garage floor take?
In this estimate, about 28 worker hours for a 2-car flake system. Epoxy usually needs a day between coats; polyaspartic topcoats can often finish faster. Check the product's cure times before parking.