Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
How to build a solid concrete retaining wall.
The depth and size of the foundation will vary depending on the size of the concrete block wall and the weight it must support but a typical freestanding wall requires a foundation that is about twice as wide as the wall itself and which extends about 1 foot down below the frost line.
How to build a concrete wall figure a.
The success of your retaining wall depends on a level base.
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.
Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.
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.
Here are the steps tom ralston owner of tom ralston concrete in santa cruz ca follows when pouring a retaining wall.
Of leveling sand and half the height of the first course of blocks.
Foundation all concrete block walls must rest on a sturdy foundation of poured concrete.
But unless you give serious thought to what goes on behind and below the wall the retaining wall design may not look good for long.
How soil pushes and how to build a retaining wall that pushes back when you contemplate how to build a retaining wall you may imagine how firm and solid it ll appear from the front or how great the new garden will look above it.
Concrete blocks are ideal for building walls to hold back the soil after you dig into a slope for a pathway patio or another landscaping project block retaining walls are generally the same as freestanding block walls but with a few important differences.