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 retaining wall with concrete blocks.
To create a solid foundation dig a trench for the first course of your interlocking retaining wall blocks to sit in and make sure the ground remains even throughout.
Heavy retaining wall blocks the blocks we used in our demonstration weigh 14 pounds each keep the soil at bay with their weight.
There are materials as well but they don t last long.
Follow the block manufacturer s instructions for wall height limits.
But for diyers retaining wall blocks made of concrete are the best solution.
Retaining walls can be build of many different materials including wood timbers bricks or natural boulders.
So to make a retaining wall that will last as long as life you should consider going with concrete blocks.
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 compacted base 1 in.
Using a tape measure decide the length and the width of your retaining wall then mark off the area with the garden stakes and string.
The retaining wall can be made from concrete blocks poured concrete treated time boulders and rocks.
Staring at one end place the first course of concrete blocks top side up on the crushed rock with the front lip facing up and towards the front of the wall.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
How to build a concrete wall figure a.
Check the level and alignment of all blocks as you go along adjusting them with a rubber mallet.
Concrete blocks are ideal for building walls to hold back the soil after you dig into a slope for a pathway patio or another landscaping project block retaining walls are generally the same as freestanding block walls but with a few important differences.
Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.
The success of your retaining wall depends on a level base.