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Allan Block retaining walls are a premium segmental retaining wall (SRW) system built from high-strength concrete blocks that lock together to create a clean, durable, and long-lasting wall. They’re a popular choice for both residential and commercial projects because they deliver a finished look while handling real structural demands—especially on sloped properties or yards that need usable, level space.
A proper Allan Block wall isn’t just stacked block. It’s a full system that relies on excavation depth, a compacted gravel base, correct setback (batter), drainage behind the wall, and geogrid reinforcement when required. When built to spec, Allan Block walls stay straight, resist movement, and hold up through wet seasons and freeze/thaw cycles.
Great for:
Structural retaining walls and grade changes
Terraced yards and multi-tier landscaping
Replacing failing timber or rock walls
Creating level pads for patios, lawns, or walkways
Clean borders for raised beds and landscape features
Common options & upgrades:
Straight or curved wall layouts
Caps for a clean top finish
Integrated stairs, landings, and transitions
Drainage integration (drain rock, fabric, weeping tile as required)
Geogrid reinforcement for taller walls or heavier loads
Feature corners, pillars, and seating wall tie-ins
Allan Block retaining walls are a premium segmental retaining wall (SRW) system built from high-strength concrete blocks that lock together to create a clean, durable, and long-lasting wall. They’re a popular choice for both residential and commercial projects because they deliver a finished look while handling real structural demands—especially on sloped properties or yards that need usable, level space.
A proper Allan Block wall isn’t just stacked block. It’s a full system that relies on excavation depth, a compacted gravel base, correct setback (batter), drainage behind the wall, and geogrid reinforcement when required. When built to spec, Allan Block walls stay straight, resist movement, and hold up through wet seasons and freeze/thaw cycles.
Great for:
Structural retaining walls and grade changes
Terraced yards and multi-tier landscaping
Replacing failing timber or rock walls
Creating level pads for patios, lawns, or walkways
Clean borders for raised beds and landscape features
Common options & upgrades:
Straight or curved wall layouts
Caps for a clean top finish
Integrated stairs, landings, and transitions
Drainage integration (drain rock, fabric, weeping tile as required)
Geogrid reinforcement for taller walls or heavier loads
Feature corners, pillars, and seating wall tie-ins