For dry stack walls the base should be as wide as the wall is tall.
Diy stacked stone retaining wall.
For a stacked block retaining wall that s no higher than four feet a trench filled with three inches of crushed rock will help keep the wall from shifting and settling.
Plan for good drainage proper width height ratio and distance between tiers.
Excavate to a depth of 6 inches along the entire base of the stone retaining wall using the string marker as a guide.
Mike installing stone steps for backyard patio pool retaining wall landscaping how to build a good base for front or backyard landscaping dry stacked stone retaining wall.
The base should be dug out at least twice as wide as the width of the stone.
How to build a seating wall classy slate tops off this stone wall with concealed mortar holding everything together for outdoor seating everyone can get comfortable with.
A dry stack stone retaining wall not only holds back the earth it adds beauty to a landscape.
Higher walls should be engineered for stability.
Lay high quality stones and use a geotextile backing to ensure the wall lasts a long time.
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.
So in my case the stone was cut to 12 wide making the base 24 wide.
Even if you don t plan to sit on your wall 3 feet is about as high as i would recommend building any dry stacked wall.
The success of your retaining wall depends on a level base.
To build a natural dry stone retaining wall prepare the site.
Building a retaining wall is suitable for diyers as long as the wall is a maximum of 3 feet tall in most areas.
For this 18 inch high wall the footing should be at least 18 inches wide.
Using your stakes string and line level.
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.
Use a hand or power tamper to level the base.
Anything taller should be handled by professionals.
Dig a ditch the length of the wall that is about a foot wide and 8 to 12 inches 20 5 cm 30 5 cm below the ground level.
This ditch will act as the wall s footing and prevent the rocks from sliding forward due to pressure from the earth behind.