Poured concrete walls can be tricky to install but look great with the architectural elements of a modern house.
How thick should a poured concrete retaining wall be.
Concrete retaining wall footing size.
This can add several inches to the wall s thickness dimensions and can vary depending on the severity of exposure soil type and reactivity etc.
In general poured concrete basement walls that are 8 feet tall or less and have no more than 7 feet of soil pressing against them from the outside function well at a thickness of 8 inches.
B short retaining walls vertical walls up to about 3m in height are usually built as shown in figure 1 b.
Most landscape contractors in areas of heavy rainfall or weather extremes avoid fine poured concrete work due to its challenges.
Step 3 take the frostline into account.
As soon as you go higher or have greater depths of soil pushing against the wall you need to increase the thickness to 10 inches.
As laag points out the wall needs a sufficient footer.
The footing should be at least as thick vertically as the wall s planned width.
For walls up to 3ft 5 5 inches thick works fine.
In general the top of the stem of any cast concrete retaining wall should not be less than 12 inches for the proper placement of concrete.
A poured concrete wall with rebar does not need to be thick to be strong.
A poured concrete footing for concrete block or brick walls should be at least twice as wide as the planned wall.
When a taller wall or a higher level of soil or both come into play the thickness should increase to 10 inches.
Poured concrete foundation walls that are less than 8 feet tall and have soil outside that is 6 or 7 feet deep against the wall can often be 8 inches thick and function quite well.