Table of Contents
How deep should a concrete retaining wall be?
The depth to the bottom of the base slab should be kept at a minimum of two feet. However, it should always be below the seasonal frost line, and that often is much deeper in northern climates.
Do concrete retaining walls need footings?
No, you do not need a concrete footing, it will actually adhere the wall from being able to naturally shift. It is best to use a coarse stone aggregate for the Retaining Wall footing.
How thick should concrete walls be?
As a practical consideration, residential designers need to keep in mind that concrete foundation walls are typically 6, 8 or 10 inches thick (nominal). The typical concrete compressive strength used in residential construction is 2,500 or 3,000 psi, although other strengths are available.
How far apart is rebar in concrete?
approximately 12 inches
Place rebar in a grid pattern with a spacing between bars of approximately 12 inches. In either case, blocks should be used under the reinforcement to keep centered within the concrete.
How to build a concrete block wall?
Excavate and Level the Base. Excavate and level the area where you’ll be installing the wall.
How many retaining wall blocks do I Need?
Divide the square footage of the retaining wall’s face by the square footage of each stone’s face, and this gives the total number of stones needed. Using the sample numbers above, we would need 67.2/0.4167 = 162 blocks. To account for breakage, you should buy several more.
How thick is a poured concrete basement wall?
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.