When building slab foundations, the concrete pour comes after the footings have set and before walls are erected. Dirt is compacted and backfilled with 4 to 6 inches of gravel.

How to Get a Solid, Frost-proof Footing: When you pour concrete footings, hold the cardboard concrete form tube about 12 in. up from the bottom of the footing.

9-ft. tall x 8-in. concrete foundation wall sitting on a footing weighs or applies a load to the footing of 9 ft. x 8 in./12 in./ft. x 150 pcf = 900 lbs./lin. ft. Load capacity of footing ...

I’m about to build a large detached garage. The plans call for a 10-inch-thick by 20-inch-wide poured concrete footing with two ½-inch steel bars that run continuously in the concrete.