How To Build A Retaining Wall With Concrete Base
There are materials as well but they don t last long.
How to build a retaining wall with concrete base. 25 mm for each 1 ft 300 mm of wall height for the amount or buried block that is needed. Stretch a level line between wood stakes to establish the wall height. 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.
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. Dig a base trench 24 in. Of leveling sand and half the height of the first course of blocks. Rather than messing around with mortar they lay the walls down like lego pieces using concrete while it s still in the bag.
That s right the idea is that. Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding. The success of your retaining wall depends on a level base. Steps to building a retaining wall.
So to make a retaining wall that will last as long as life you should consider going with concrete blocks. So diyers have come up with an interesting trick. Tall wall excavate a trench deep enough to accommodate 4 to 6 in. Add 2 inches of stone dust to create setting bed.
Dig into hillside 2 ft. The retaining wall can be made from concrete blocks poured concrete treated time boulders and rocks. Dig out dirt along base of wall to accommodate 6 inches of crushed stone. Building a retaining wall in the conventional ways is not a trivial matter.
That s when walls start leaning bulging and toppling. More information on retaining walls where the base trench steps up a slope. Back from face of retaining wall. Uncontrolled water weakens walls.
The interlocking retaining wall block can be used to build walls up to 24 to 36 inches high depending on the size of the block. But far more frequently it causes problems by building up behind the wall saturating the soil and applying incredible pressure. Follow the block manufacturer s instructions for wall height limits. 600 mm wide the length of the wall the depth of the trench will be 6 in.
How to build a concrete wall figure a. Retaining wall base trench. Add 6 inches of stone then compact it with a hand tamper.