Free garage floor coating calculator
Pick a system and enter your floor size to see exactly how much primer, base, topcoat, and flake you need for an epoxy or polyaspartic garage floor. No signup, no email. Want it turned into a branded, signable proposal? Start a free trial.
Measurements
0 sq ftThe free calculator handles one area. Multi-area jobs, saved presets, and branded proposals are in the full app.
Material takeoff
Polyaspartic Base 0.0 gal needed · 135 sf/gal | 0 kits |
Polyaspartic Topcoat 0.0 gal needed · 125 sf/gal | 0 kits |
Decorative flake 0.0 lb · full broadcast | 0 boxes |
Labor grind 0.0h · install 0.0h | 0.0 hrs |
Seeded from published coverage ranges. Always verify against your product's TDS before ordering.
Turn this into a signed job
CoatBid drops these numbers into a branded, e-signable proposal your customer signs on their phone — in about 3 minutes. Material pricing, margin, and proposals are in the full app.
Start a free 14-day trial — no cardHow the calculator works
CoatBid takes your floor area and the published coverage rate for each coat (square feet per gallon), applies a waste factor, and rounds up to whole purchase units — because you can't buy a third of a kit. Flake is converted from pounds-per-square-foot at your chosen broadcast density into whole boxes.
These defaults are seeded from typical manufacturer ranges. Coverage varies by product, profile, and temperature — always verify against your product's technical data sheet (TDS) before ordering.
Garage floor coating calculator — FAQ
How much epoxy do I need for a garage floor?
It depends on the coating's coverage rate (square feet per gallon) and how many coats. A 100%-solids epoxy base covers roughly 80–120 sq ft/gal per coat; a typical 2-car (~400–576 sq ft) garage needs about 4–6 gallons of base plus primer and topcoat. This calculator does the exact math and rounds up to whole kits.
How much flake do I need?
Flake is broadcast by the pound per square foot at your chosen density — light, medium, full, or double. A full broadcast runs roughly 0.25–0.5 lb/sq ft, so a 480 sq ft floor needs about 120–240 lb. The calculator converts your area and density into whole boxes.
Does the calculator show the price of the job?
The free calculator gives you the material takeoff (quantities and labor hours), not a customer price. Pricing, margin, and a branded, e-signable proposal are in the full CoatBid app.
Where do the coverage rates come from?
They're seeded from typical published manufacturer ranges. Coverage varies by product, surface profile, and temperature — always verify against your product's technical data sheet (TDS) before ordering.
More detail in our guides: how much epoxy for a 2-car garage, flake coverage per square foot, and garage floor coating cost.