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.
How to build a small concrete block retaining wall.
Of leveling sand and half the height of the first course of blocks.
Block retaining walls are generally the same as freestanding block walls but with a few important differences.
How to build a concrete wall figure a.
Of compacted base 1 in.
Without a pressure relief system the weight of the water in the soil would crack or even buckle the wall.
A retaining wall must provide a way to release the water that builds up in the slope behind it.
Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.
Drive long wooden stakes into the ground at each end.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
Once you ve got your base set up it just takes some finesse in building the wall up and turning corners.
If the distance is greater than 8 drive additional stakes so that the gaps do not exceed 8.
Follow the block manufacturer s instructions for wall height limits.