Video Series
How to Build Retaining Walls
These videos from concrete wall block manufacturer Allan Block might be a little dated, but the advice is evergreen.
Planning a Retaining Wall Project
What factors influence the design of your retaining wall? Find out what steps to take before building one. A solid plan will simplify your landscaping or garden wall project.
Base Course Installation
A level base is one of the most crucial elements of a retaining wall. Learn the correct method for installing the base course of an Allan Block retaining wall. You will discover how to position the blocks, how to add the wall rock, and tips for keeping the wall straight as you build. Other important considerations include how much block to bury and what to do if the ground above or below the wall site slopes.
Backfilling & Compaction
After the base course of your wall is in place, fill the space behind the blocks with suitable material. Then compact that fill using a walk-behind plate compactor. Proper compaction is essential for a durable retaining wall. This video explains the correct backfilling methods and compaction techniques for rock, gravel and soils when building an Allan Block retaining wall.