Choose a paver base with landscape rocks between 1 2 inch and 3 4 inch in size.
Retaining wall base gravel.
A level base on which the wall sits.
More information on retaining walls where the base trench steps up a slope.
A handheld tamping tool can really help in getting the gravel level but you re right one stray stone can throw off the entire operation.
150 mm plus an additional 1 in.
Round rocks such as pea gravel rolls and dislodge under pressure resulting in failure of the retaining wall.
Below is an overview of the different types of walls and these common components.
Lay a 4 6 inch layer of the crushed base material in the trench.
Retaining wall base trench.
All retaining walls share some common building components in their construction.
The taller a wall is the further below ground level it should be set.
The base of a retaining wall should be set below ground level.
25 mm for each 1 ft 300 mm of wall height for the amount or buried block that is needed.
To keep the blocks on your retaining wall level and structurally sound you need a base layer of several inches of well compacted sharp gravel.
Also called drain tile at the base of the wall.
Fill the trench with a 2 to 3 inch layer of paver base.
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.
A retaining wall must have the strength to hold back the weight of the soil plants and sometimes small structures behind it.
Retaining walls are designed to hold up a surcharge of soil such as a sloping hill or raised planter box.
600 mm wide the length of the wall the depth of the trench will be 6 in.
Similar to gravel paver base is a form of construction aggregate that contains crushed rocks such as limestone.
Retaining walls can be constructed using a variety of materials from poured concrete and large timbers to natural stones even bricks.
The wall gets its strength from a sturdy base consisting of gravel.
Dig a base trench 24 in.