After you finish the first course fill the space between your retaining wall and.
Make your own concrete retaining wall blocks.
Formablok molds are easy to use from the amateur diy to the professional contractor.
If needed reposition it using additional.
Lay out your concrete block in a dry run spacing it with 3 8 inch plywood spacers.
Dig for the first row of block.
I am seriusly thinking of making my own retaining wall blocks from the molds i am thinking of buying off ebay.
But for diyers retaining wall blocks made of concrete are the best solution.
I can buy 4 molds for about 80 dollars including shipping.
Choose your blocks traditionally retaining walls were built with standard concrete blocks known as cmus.
Pour anywhere with leftover redi mix concrete or any other hardening substrate.
To bury the first row.
For row one knock off the flanges with a hammer and chisel so the.
Adjust for sloping ground.
Position your first block and use a standard level to make sure it s even.
With our 4 design types you can now make your own articulating interlocking dry stack gravity blocks to create any configuration imaginable.
Check your local building codes step 1.
In nj i visited varoius garden places including lowes and homedepot and the 600 blocks i need would cost me between 1100 to 1500 excluding the delivery.
Prepare the foundation step 1.
Along your marked line carefully dig a trench slightly wider than the blocks ideally the width of your soil tamper and deep enough so the first course of blocks is below ground level.
With the layout marked you can begin digging the trench.
Heavy retaining wall blocks the blocks we used in our demonstration weigh 14 pounds each keep the soil at bay with their weight.
Push the first block into the mortar until it s 3 8 inch above the footing.
Most block construction calls for an 8 x 16 footer.
A great way to use up excess concrete.
Take up the block and spread mortar on the footing.
Cut straight down with the shovel keep from disturbing the surrounding soil.
Retaining walls can be build of many different materials including wood timbers bricks or natural boulders.
I d suggest building forms for the wall s base from 2 x 8 boards and then using the same lumber for the block forms after the footer is done.