Of compacted base 1 in.
4 foot concrete retaining wall design.
An 8 foot tall retaining wall must be eight times stronger than a 4 foot tall wall.
Excavate the trench to about 3 feet wide and to the desired depth generally 12 inches.
Tall walls create high potentially dangerous drop offs that may need a fence or other type of safety barrier.
It is advisable to get local building department approval for the design however.
In the past years people frequently used concrete for inexpensive retaining wall ideas since it functions well solid and dependable.
In most states retaining wall designs taller than about four feet must be designed by or approved by a qualified licensed professional engineer.
The typical installation procedure for a simple retaining wall less than 4 feet tall on good soil is described in this article.
Line out the foundation trench on the ground.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
And secure one row to the next with pins.
A 4 foot high 15 foot long wall could be holding back as much as 20 tons of saturated soil.
Additionally it is important to check with and adhere to local building codes prior to any construction even when walls are shorter than four feet.
Of leveling sand and half the height of the first course of blocks.
Double the wall height to 8 feet and you would need a wall that s eight times stronger to do the same job.
Particularly retaining walls can assist you on keeping the soil on one side of the structure enabling a lower floor level on the other side of the wall.