Adding proper backfill to your retaining wall is extremely important as this is a key element in helping divert water away from the back of the wall eliminating hydrostatic pressure the leading cause of retaining wall failure.
Retaining wall gravel backfill.
This video shows how a retaining wall should be back filled to allow for maximum drainage.
The retaining wall should have 12 of gravel immediately behind the entire length and height of the wall to allow for proper drainage.
Retaining wall landscaping cost.
A wall that leans into the soil it retains is less likely to be pushed outward by soil pressure than a plain old vertical wall.
Backfilling your retaining wall.
Rcp recommends using 3 4 crushed gravel.
A retaining wall must have the strength to hold back the weight of the soil plants and sometimes small structures behind it.
The base of a retaining wall should be set below ground level.
46 5 face ft.
During the installing it s critical to ensure that the retaining wall base is compacted and level so that the first course of retaining wall block will be level.
If you have your retaining wall built figure about 15 per square face foot for a timber wall 20 for an interlocking block system or poured concrete and 25 for a natural stone wall.
Crucial for supporting the rest of the wall a good base is made of compacted soil and at least a six inch layer of compacted sand and gravel.
The wall gets its.
Pavestone rockwall small 4 in.
The taller a wall is the further below ground level it should be set.
Step 6 calculate the number of capstones needed by dividing the length of the wall in feet by the length of the capstones in inches.
Second a retaining wall must have properly compacted backfill.
Preparing a troublesome site one that includes clay soil or a natural spring for example can raise costs substantially.
Design and build your retaining wall to slope at a minimum rate of.
Estimating stone and gravel for a retaining wall.
How to estimate backfill gravel.