Using self stacking (interlocking) blocks will make your Block Retaining Wall much sturdier and they will make your do it yourself project a lot easier.
Step 1: Marking out the Block Retaining Wall placement
Marking the ground where you want to build the Block Retaining Wall with a shovel and driving long stakes in at the ends (or at 8 foot lengths if your wall is longer), is where we start.
Using string, attach it to the stakes at the correct height for your Block Retaining Wall, ensuring that it is level.
Step 2: Preparing the base
The area needs to be excavated to an eight inch depth. Four inches of gravel then needs to be spread throughout this trench. Remove or add gravel as needed until you obtain the correct height for your Block Retaining Wall.
Step 3: Laying the first level
Begin from one end, placing the first level of blocks, right side up. Continuously check the alignment and level of the concrete blocks, adjusting it with your rubber mallet where necessary. Use crushed gravel to fill in the concrete cores.
Step 4: Installing the drainage pipe
Corrugated drainage pipe must be installed behind this first level of your Block Retaining Wall. Make sure you put the pipe in so that it will allow the water to have somewhere to run out of the area. A drain sleeve will protect the drainage pipe, preventing any clogging from sediment etc.
Step 5: Laying the remaining levels
Clear any debris off the top of the already laid blocks. The drainage pipe needs to be covered with more crushed gravel. Continue laying your Block Retaining Wall and backfilling with soil and crushed gravel until you reach your desired height.
Step 6: Laying the capstones.
The final level needs to be topped with the capstone blocks, use a chalking gun and concrete adhesive to secure them in place. Follow the manufactures instructions for the concrete adhesive.
Your Block Retaining Wall is now finished, step back and check out your job well done.