Garage floors
Sourced answers on garage floors, written for the person standing in front of the problem.
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1
How thick should concrete be for a garage?
Four inches suits passenger cars. Go to 5–6 inches for trucks, RVs or a lift, and specify 4,000 psi with air entrainment where road salt or freezing reach it.
2How thick should a concrete garage floor be?
Four inches suits passenger cars; 5 to 6 inches for heavy vehicles, lifts, or shop equipment. ACI 332 sets 4,000 psi with air entrainment for freezing.