Retaining Wall Base Gravel

Retaining walls can be constructed using a variety of materials from poured concrete and large timbers to natural stones even bricks.

Retaining wall base gravel.

The taller a wall is the further below ground level it should be set. More information on retaining walls where the base trench steps up a slope. Round rocks such as pea gravel rolls and dislodge under pressure resulting in failure of the retaining wall. This is standard for all.

600 mm wide the length of the wall the depth of the trench will be 6 in. 25 mm for each 1 ft 300 mm of wall height for the amount or buried block that is needed. The base of a retaining wall should be set below ground level. 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.

Retaining wall base trench. A level base on which the wall sits. All retaining walls share some common building components in their construction. 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.

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. Fill the trench with a 2 to 3 inch layer of paver base. The wall gets its strength from a sturdy base consisting of gravel. Retaining walls are designed to hold up a surcharge of soil such as a sloping hill or raised planter box.

A retaining wall must have the strength to hold back the weight of the soil plants and sometimes small structures behind it. Next compact it and level it using either a hand or mechanical compactor. Lay a 4 6 inch layer of the crushed base material in the trench. Choose a paver base with landscape rocks between 1 2 inch and 3 4 inch in size.

Also called drain tile at the base of the wall. Below is an overview of the different types of walls and these common components. 150 mm plus an additional 1 in.