Carport Footer Depth. Cut the Rebar into 2-foot pieces and drive them into the ground beginning at point A and at every 4 feet from there on. My overturning moment at each column is approx.
Where applicable the depth of footings shall also conform to Sections R403141. The footer may get deeper than 16 inches at some points. Exterior footings shall be placed not less than 12 inches 305 mm below the undisturbed ground surface.
2Where slab-on-ground construction is used a constr uction joint shall be provided between the main building.
Footing depth - varies based on frost line and soil strength some footings can be shallow while other must be deep. My overturning moment at each column is approx. Plan on at least four posts one at each corner. But you really cant go wrong digging a few inches deeper.