Lay the First Course with Proper Setback
3:35
28:17
1.9M views
At 3:35 in
How NOT to Build a retaining wall. RED FLAGS, common mistakes, bad designs pt1
What happens here
Begin laying the first course of retaining wall blocks. Use a laser level to ensure the blocks are set at the exact same elevation. Position each block with a setback of approximately 3 inches from the building foundation. This setback is crucial, especially for taller walls, as it ensures that the final cap block will overhang the wall by about 1 inch, rather than being flush or having an excessive overhang that could lead to instability or an unsightly appearance. The block is carefully adjusted with a mallet and level to achieve perfect alignment and stability.
Goal: Establish a level and correctly positioned base for the retaining wall.
Tools and materials
- Laser Level — Ensuring consistent elevation of the block courses
- Level — Checking the levelness and setback of each block
- Mallet — Adjusting blocks into position without damaging them
- Retaining Wall Blocks — Building the wall structure