Yes, every structural member which resist the load and transfer it to soil need footing to distribute at lesser intensity.
Do I Need A Concrete Footing For A Retaining Wall. I'm looking to build a retaining wall on my sloped backyard. The question is more one of how many yards of concrete will you need to build the footing.
Exterior Wall Footing - Concrete Stem 8 x 8 x 16 - Omniblock from www.omniblock.com
We used 2x 8 for the before the truck leaves, we always save a little wet concrete in a wheelbarrow in case we need it. There are special blocks designed for retainer wall builds that only require a compacted gravel bedding similar to a footing. Apart from that retaining wall experience lateral force, at base.
As the soil pushes against the wall, the wall will want to slide away and also topple.
To determine the lateral earth pressure, several soil parameters must be known in order for a qualified engineer to assess a particular wall design and its overall stability. Poor mans fiberglass, permanent exterior paint, never paint again (almost), waterproofing with out epoxy, fiberglass epoxy allergy relief: The engineers original plans just had me doing. I'm now thinking of a poured concrete wall (like a foundation).
