To get started you ll need to dig a level trench and add sand or crushed limestone to it as a base leveling material.
How to build a retaining wall 4 feet high.
Using a tape measure decide the length and the width of your retaining wall then mark off the area with the garden stakes and string.
If you like do it yourself projects and want to make your property look more visually appealing then build a strong retaining wall with 4 by 4 treated posts.
How to build a concrete wall figure a.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
A 4 foot high 15 foot long wall could be holding back as much as 20 tons of saturated soil.
Use the plan design menu above to check out all of the information we have on how to build.
How high should my retaining wall be.
On average most retaining walls are between 3 and 4 feet high.
Of compacted base 1 in.
If it s going to be 5 feet 1 5 m tall make sure your posts are 5 feet 1 5 m tall with an additional 18 inches 46 cm on top.
With forces like these in play you should limit your retaining wall efforts to walls under 4 feet tall 3 feet for mortarless stone.
The success of your retaining wall depends on a level base.
There are a number of factors that come into play to dictate the height of your retaining walls.
By using the information we have on building retaining walls you will get everything you need to plan design and build the perfect retaining wall project.
How to build a retaining wall.
An average brick retaining wall that is 30 feet long and 4 feet high without any built in steps or extra reinforcements is typically around 4 220 the average homeowner will pay 35 per square foot and spend between 2 450 and 6 650 to build a retaining wall.
The interlocking retaining wall block can be used to build walls up to 24 to 36 inches high depending on the size of the block.
Follow the block manufacturer s instructions for wall height limits.
Of leveling sand and half the height of the first course of blocks.
Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.
This is optimal because it doesn t require any anchors or expensive engineering methods though in some cases the wall must be higher.
Double the wall height to 8 feet and you would need a wall that s eight times stronger to do the same job.
To create a solid foundation dig a trench for the first course of your interlocking retaining wall blocks to sit in and make sure the ground remains even throughout.
There are many things that need to go into building a retaining wall before the first shovel of dirt is ever moved.