Choose a paver base with landscape rocks between 1 2 inch and 3 4 inch in size.
How to build a concrete retaining wall footing.
Prepare the footing spread mortar and build leads sliding the block over the rebar as needed.
Begin on one side of the footing and move your way slowly to the other.
Create contraction joints every 4 6 feet.
Have a helper go back to mix and dump successive loads of concrete until you have filled the trench to the appropriate level which in this example is 7 inches.
Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.
See below for more information on contraction joints remove forms and install waterproofing and drainage system.
Of leveling sand and half the height of the first course of blocks.
If the wall exceeds four feet in height footings should be poured separately.
Pour the concrete into the open spaces in between the wood forms that you set out.
Similar to gravel paver base is a form of construction aggregate that contains crushed rocks such as limestone.
Due to soil erosion your retaining wall should be built on a solid foundation made from paver base.
Build and prep footing lay out the wall and excavate the slope and the footing trench.
The footing dimensions will largely be determined by the size of the wall.
Then mix the concrete per the instructions.
Use an iron rake to push the concrete around as necessary.
A poured concrete footing for concrete block or brick walls should be at least twice as wide as the planned wall.
You want it to be thick but not so thick that you can t pour it.
Finish the surface of the wall as desired.
To mark a free form layout use a rope or hose to outline the shape.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
Fill the trench with a 2 to 3 inch layer of paver base.
Follow the block manufacturer s instructions for wall height limits.
The footing should be at least as thick vertically as the wall s planned width.
How to build a concrete wall figure a.
Mix up concrete in a wheelbarrow and dump concrete into the trench.
Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.
Mix in the wheelbarrow and make sure that the consistency is like cake batter.
Allow concrete to cure.
Your retaining wall design will determine how you mark the area.