Garage floor comparisons

How to read these comparisons

Each row is a factor that differs meaningfully between the two options; factors that are the same for both are left out. Cost figures are installed unless marked, and they are ranges because the published sources are ranges. Lifespan figures assume proper preparation, since a coating over an unground slab has no meaningful lifespan. The verdicts are written as conditions, not winners, because the right answer depends on the slab, the schedule, and the climate rather than on the product.

Two cautions. Installer-published figures such as Galaxy's amortized $200 vs $375 per year come from companies selling the option they favor, and the comparison notes that. And no comparison replaces a moisture reading: a wet slab makes the coating pairs moot and sends you to the tile pair.

The factors that decide most garage floors

Downtime decides more than price. If cars must be inside within a day, polyaspartic or tiles; if a week is fine, epoxy is in play. Moisture decides next: a slab over the coating manufacturer's limit means tiles or a mitigation primer. Heat decides the topcoat: Sun Belt daily-driver garages need a polyaspartic or urethane top layer whichever body coat is used. Then budget: Duration lists epoxy at $3 to $7 and polyaspartic at $5–$12 per sq ft, and Garage Flooring LLC lists tile materials at $2.90–$8.00+ per sq ft. Resale rarely decides anything; NAHB's finding that a garage adds ~10% to home value is about the garage, not the floor finish.

When the comparison is not the right question

Some slabs need a decision about the concrete before any finish. Heaving, wide cracks, and crumbling surface point to a preparation and repair conversation or a concrete contractor. Some garages are headed for conversion to living space; Bob Vila prices a conversion at a $16,199 national average, with a return of ~80% ROI and flooring at $5 to $14 per square foot within it, and the floor choice belongs to that larger project. And some homeowners simply want dust control on a shop floor, where grind-and-seal beats every pair here on cost.

Using the comparisons with proposals

When proposals arrive for different systems, use the matching pair to weigh them rather than comparing totals. A $3,000 epoxy proposal and a $4,500 polyaspartic proposal differ by the cure time, the topcoat chemistry, and the expected life, and those have a value you can put a number on: a week of street parking, a recoat at year eight, or a peeled patch under the tires. The calculator rebuilds each proposal from its lines; the request form gets more of them.