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