Drive stakes into the ground at each end.
Building a retaining wall out of landscape timbers.
Retaining walls can be constructed using a variety of materials from poured concrete and large timbers to natural stones even bricks.
Drill 1 2 inch wide holes through the ends of each timber with a hole drill bit and hammer an 18 inch long metal.
If your retaining wall is going to be 40 feet 12 m long you need 14 posts 40 length of the wall divided by 3 space between each post for your wall.
Stretch another level line near ground to represent the top of the first course of landscaping timbers.
Excavate the bottom of the slope to create a level base for the wall.
Tie a string to a stake at the wall s desired height and stretch across to opposite stake or stakes.
Dig a trench 12 inches deep around perimeter of retaining wall.
How to use landscape timbers for a retaining wall 1.
Dig a foundation trench for the first row of timbers image 3.
Connect the stakes with a string and adjust until it is level images 1 and 2.
Use landscape marking paint to outline the area where the retaining wall will be built.
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.
If the distance is greater than 8 drive additional stakes so that the gaps do not exceed 8.
For diy purposes opt for manufactured blocks that are.
The base of the retaining wall should be half the wall s height.