What thickness should a garage floor coating be?

The right thickness really depends on how the garage gets used, not a single universal number. A standard two to three coat system, built up to roughly 20 to 30 mils, handles normal residential use fine: parking, occasional projects, and typical foot traffic. Garages used as workshops, with heavy equipment, tool carts, or frequent chemical exposure, often benefit from a thicker build or an added topcoat for extra protection. Commercial and industrial spaces usually call for a thicker, more heavy-duty system altogether. Rather than picking a thickness number in isolation, it’s worth describing how you actually use the space so the system can be matched to it.

Tell us how you use your garage, and we’ll recommend the right St. Louis epoxy flooring system for it, not just a generic package.

Often, yes. Garages used for heavy tools, frequent chemical exposure, or rolling equipment carts benefit from an added topcoat or a thicker build for extra wear and chemical resistance compared to a standard residential system.