Can I... Build a garage on a

The residential code allows a detached garage to be constructed on a floating slab (without frost depth protection) if the garage is 600 square feet or smaller in area, is constructed of light frame construction, and has an eave height of 10 feet or less. For garages constructed with other than light frame construction, and an eave height of 10 feet or less, the maximum area allowed without frost depth protection is 400 square feet in area. Garages not meeting this criteria must have frost depth protection for their foundation.

This page last updated on 11/1/2018.