Skip to main content

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