The depth and size of the foundation will vary depending on the size of the concrete block wall and the weight it must support but a typical freestanding wall requires a foundation that is about twice as wide as the wall itself and which extends about 1 foot down below the frost line.
Footing for concrete block wall.
To construct a block wall you need to establish a solid footing that is a minimum of twice the width of the concrete block.
Installing concrete block foundation walls over the footings is a common method of getting the concrete slab raised above grade in our area of the country central alabama.
If you want a superstrong concrete block foundation you need to include both horizontal steel reinforcing wire and in the cores vertical reinforcing steel that extends up from the concrete footing.
The resulting raised floor makes the house look much better than when the is slab poured basically flat to the ground.
For example a typical 8x8x16 in.
The size of the trench and diameter of the rebar depends on the purpose for the wall such.
Footers for block walls consist of a footing trench steel reinforcement rods rebar and concrete.
However for even the most modest block structure to have enough rigidity to bear pressure and weight it needs proper footing.
Always check local building codes for construction requirements in your area.
Wide footing and extend below the frost line.
Foundation all concrete block walls must rest on a sturdy foundation of poured concrete.