Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.
How to build a tall concrete retaining wall.
Designing very tall walls gets rather complex when accounting for lateral pressure as do the reinforcement options.
Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.
Concrete retaining wall footing size the depth to the bottom of the base slab should be kept at a minimum of two feet.
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 wall is much stronger and generally last many more years than a block wall.
The interlocking retaining wall block can be used to build walls up to 24 to 36 inches high depending on the size of the block.
Of leveling sand and half the height of the first course of blocks.
Of compacted base 1 in.
Use the plan design menu above to check out all of the information we have on how to build.
Follow the block manufacturer s instructions for wall height limits.
How to build a retaining wall.
Traditionally retaining walls were built with standard concrete blocks known as cmus concrete masonry units or cinder blocks as they re more commonly known in the u s.
There are many things that need to go into building a retaining wall before the first shovel of dirt is ever moved.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
Typically measuring 8 by 8 by 16 inches these hefty guys feature two openings aka cells that help stabilize the wall with the help of rebar running through them.
By using the information we have on building retaining walls you will get everything you need to plan design and build the perfect retaining wall project.
The 8 foot wall actually needs to be four times stronger.
For example a retaining wall 8 feet tall is not just twice as strong as a wall 4 foot tall.