We break the pieces into square foot blocks.
How to build a broken concrete retaining wall.
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.
My new grand plan d re used the old broken concrete cut up into smaller slabs to create 500mm 20 high gravity walls keeping it on site in a very environmentally virtuous way.
These wood barriers hold the concrete in place as it dries so you will need to create 2 of them.
Install the first course of blocks using a taut string line to establish a straight row.
We do a lot of broken concrete retaining walls and they work very well.
If those are the rocks you have buy some sheets of plywood build a simple but strong form to support same and make a concrete rock wall.
Keep the boards less than 8 ft 2 4 m long so they aren t too difficult to handle.
Stack wood planks to create a frame for the wall.
Slope the wall in a little as it gets taller 1 2 inches per foot of height is the minimum.
Ok we d also already sent tonnes of bricks to landfill and it was costing a bomb.
The cheapest and easiest material to use is 2 in 4 in 5 1 cm 10 2 cm boards cut from a softwood like pine.
A 4 foot wall made of round 4 inch rocks is a bad joke.
Once the first row is installed pack native soil to grade level on both sides of this course to anchor the wall in place.
We wedge the pieces and tip the walls so it is not just straight up and down.
Naturally i spent the morning of new year s day poking around the grounds looking for garden ideas and inspiration.
Learn how to build a low wall from concrete breezeblocks.
Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.
Remember to check out the full diy construction video on our website.
Level to level blocks lengthwise and a torpedo level to level the front to back.