The retaining wall can be made from concrete blocks poured concrete treated time boulders and rocks.
How to make concrete retaining wall blocks.
Follow the block manufacturer s instructions for wall height limits.
So to make a retaining wall that will last as long as life you should consider going with concrete blocks.
Of leveling sand and half the height of the first course of blocks.
Check the level and alignment of all blocks as you go along adjusting them with a rubber mallet.
But for diyers retaining wall blocks made of concrete are the best solution.
There are materials as well but they don t last long.
Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.
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.
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.
Without a pressure relief system the weight of the water in the soil would crack or even buckle the wall.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
Heavy retaining wall blocks the blocks we used in our demonstration weigh 14 pounds each keep the soil at bay with their weight.
How to build a concrete wall figure a.
A retaining wall must provide a way to release the water that builds up in the slope behind it.
Retaining walls can be build of many different materials including wood timbers bricks or natural boulders.
The success of your retaining wall depends on a level base.
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.
Of compacted base 1 in.