Essentials of

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Part 2--Construct a Concrete-Block Wall


Footings are the enlarged areas under the foundation of walls or columns. They distribute the weight of the wall or column over a larger area and prevent it from settling.

2-1. Materials. Footings are normally concrete, although brickwork footings are satisfactory. All footings must be below the frost line to prevent heaving and settlement of the foundation. Column footings for wooden buildings are constructed in the same way as wall footings.

2-2. Sizes. The required footing width and thickness for walls of considerable height or for walls that carry heavy loads should be determined by a qualified engineer. However, for the usual one-story building with an 8-inch wall, a footing 16 inches wide and 8 inches thick should be enough.

David L. Heiserman, Editor

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Revised: June 06, 2015