Size the trench so there s enough room for the retaining wall block and at least 8 in.
Build a concrete block retaining wall.
Drive long wooden stakes into the ground at each end.
Excavate deep enough to completely bury at least one full course including space for 6 to 8 in.
How to do it build and prep footing.
How to do it.
For row one knock off the flanges with a hammer and chisel so the.
Adjust for sloping ground.
These phases are explained briefly.
Build end leads to corners.
Concrete block retaining wall construction consists of number of phases including excavation foundation soil preparation retaining wall base construction concrete block unit placement grouting and drainage system installation.
Of leveling sand and half the height of the first course of blocks.
Tie a string to a stake at the wall s desired height and stretch across to opposite stake or stakes.
Lay out your concrete block in a dry run spacing it with 3 8 inch plywood spacers.
Using a shovel mark the ground where the retaining wall will be built.
Start the fourth layer with a half block and continue starting layers with half blocks every other layer until your wall has reached the desired height.
Scrape off excess mortar.
But for diyers retaining wall blocks made of concrete are the best solution.
With the layout marked you can begin digging the trench.
Create a staggered form with the blocks to build a wall.
Prepare the foundation step 1.
Before you start lay out and pour footing.
Build the footing and insert.
Of space behind it.
Heavy retaining wall blocks the blocks we used in our demonstration weigh 14 pounds each keep the soil at bay with their weight.
Retaining walls can be build of many different materials including wood timbers bricks or natural boulders.
Establish a level trench to ensure an even layer of base material.
How to build a concrete wall figure a.
Build up the wall.
Of compacted base 1 in.
As you lay the second course of block insert weep holes 3 4 inch pipe into the mortar every third.
Lay out the wall and excavate the slope and the footing trench.
Start the third layer with a regular cinder block and build out.
Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.
Excavation work for concrete block retaining walls.
If the distance is greater than 8 drive additional stakes so that the gaps do not exceed 8.
Cut the blocks with masonry chisel to get the required shape and size for the wall.
Repeat the buttering and laying blocks technique to build out the wall s second layer.
To bury the first row.