Of compacted base 1 in.
How to build concrete retaining wall forms.
For taller walls build shorter forms to add to the 4 sections.
How to pour a concrete retaining wall.
Arrange them so they border the hole in your yard where you plan on pouring concrete for the wall.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
Place 3 4 in 1 9 cm pieces of plywood on the ground.
Since plywood comes in 4 x 8 sheets the forms are better off 8 long for the most part.
These shoe plates need to be wide enough to support the forms you built.
Set the forms on plywood boards near where you plan on building the wall.
We are using symmons forms on this job but the general principles are the same.
Then use the marking paint and measuring tape to lay.
Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.
Lay your outline on the ground use the tape measure to ensure correct measurement and the carpenter s protractor to verify correct angles.
This walls are retaining a h.
When installed properly concrete offers much more room for customization than any other retaining wall material.
Even though we are not dealing concrete blocks always base the height of a concrete wall form on a multiple of 8.
Learn how to set the forms for a concrete wall.
Place nails at least 8 feet apart.
Poured concrete retaining walls can be colored textured accented with embedded objects and much more.
Here are the steps tom ralston owner of tom ralston concrete in santa cruz ca follows when pouring a retaining wall.
It would be advisable not to build the forms any taller than 4.
Of leveling sand and half the height of the first course of blocks.
Refer to the plan or schematic for the retaining wall.
Determine the design of your concrete project.
Tie twine to the first stake and string it around the perimeter of the outline tying it to each stake.
Measure and mark footing locations.
Measure for the wall.
Drive stakes into the ground at each corner of the outline.