Retain-A-Rock

An engineered large format segmental block retaining wall designed as a gravity or mechanically stabilized earth (MSE) earth retainment system.

Economical

advantage

Smarter

engineered solution

Saves time

with self-aligning blocks

A true gravity block retaining wall system

Our 2.23 square metre (24 sq ft) precast concrete block relies on its mass and interlocking design for gravity retaining walls and only requires mechanical tie backs for wall heights surpassing 3.66m high (12 ft).

BUILD SMARTER

easier to maneuver

BUILD FASTER

with large format blocks

LESS EQUIPMENT

no cranes or telehandlers

REPAIR STABILITY

by building the upper grade faster

Benefits

Quality assurance
  • Every block is produced and handled with the same care and cast in a high quality mould to maintain accuracy and consistency.
  • Manufactured in NPCA & CSA Certified plants.
Quick installation
  • One block is equivalent to up to 12 blocks of smaller segmental options.
  • Self-aligning blocks ensure precise layout and less handling.
  • Installed with anything that can lift 3,000 kgs (no cranes or telehandlers!)
Drainage
  • Designed with a unique hollow core, allowing for gravel infill and a built-in perforated drainage system. This optimizes freight costs, and the installation advantages are endless.
For the engineers
  • An engineered wall solution from concept-to-completion.
For the wall contractor
  • Lightweight material means easier to work with and no crane to unload and place.
  • Self-aligning blocks ensure a straight-forward installation with no unforeseen challenges.
  • Job is completed faster with fewer rocks to place and easier for the crew to maneuver, especially on challenging sites.
For the property owner
  • Cost savings to have the wall built in quick turnaround.
  • No surprises - Gets exactly the wall expected.
  • Peace-of-mind with long-term performance.
  • A clean, aesthetically pleasing wall.

Design Details

Each 2.23 sq meter (24 sq ft) precast concrete block is produced in a quality mould and formed to maintain precise accuracy – which means you can have peace-of-mind knowing what is showing up on site is exactly what is expected. Relying on its mass of up to 5,800 lbs. per unit, the interlocking connection between the blocks means that there is no need for integrated mechanical tie backs for walls up to 3.66m (12 feet) high. Mechanical tie back systems are available for walls that exceed 3.66m (12 feet) high or for sites that have soil conditions, or added surcharge loads, that require tie back systems.

Wall Heights: 2 – 12 ft wall height without geogrid; 12ft+ heights when using geogrid

Block Sizes: Large modular block sizes [2.44m long (8ft) x 0.917m high (3 ft)]

Accessories: Copings, End Blocks, Half Blocks, Customized Drain Openings.

Surface Finish: Smooth face or Natural Stone. Custom finishes available upon request. Can be stained to match any colour.

Mounting: Mount any hand rail or fencing easily with mounting hardware.

Block Specifications

TOP FULL BLOCK (TA)

  • Height: 917 mm (3'-0")
  • Width: 2,440 mm (8'-0")
  • Weight: 2,358 kg (5,200 lbs)
  • Face Area: 2.23 m² (24.0 ft²)
  • Fill Volume: 0.86 m³ (30.4 ft³)

Retain-a-Rock

Our 2.23 square metre (24 sq ft) precast concrete block relies on its mass and interlocking design for gravity retaining walls and only requires mechanical tie backs for wall heights surpassing 3.66m high (12 ft).

FULL HEIGHT/HALF WIDTH BLOCK (HA)

  • Height: 917 mm (3'-0")
  • Width: 1,220 mm (4'-0")
  • Weight: 1,134 kg (2,500 lbs)
  • Face Area: 2.23 m² (24.0 ft²)
  • Fill Volume: 0.58 m³ (20.5 ft³)

FULL BLOCK (A)

  • Height: 917 mm (3'-0")
  • Width: 2,400 mm (8'-0")
  • Weight: 2,945 kg (5,500 lbs)
  • Face Area: 2.23 m² (24.0 ft²)
  • Fill Volume: 1.30 m³ (46.0 ft³)

Applications

Whether you are building a temporary or permanent retaining wall, our in-house engineering services will help you design for any range of geotechnical challenges.

Our experience ranges from:

Bridge Abutments & Wingwalls
Culverts
Roadways Expansions
Erosion Control/ Shoreline Protection
Waste Transfer Stations or Other Industrial Sites
Residential or Commercial Developments
Temporary Shoring

Key Sectors

roads and highways cover image

Highways & Roads

Engineered noise barriers, retaining walls, and safety hardware tested for

Learn more

Railways & Transit

We serve the needs of rail corridors and state-of-art station hubs to keep transit connected and moving.

Learn more

Energy & Utilities

Durable precast solutions for substations, pipeline corridors, and critical infrastructure protection.

Learn more

Commercial & Industrial

The noise reduction, earth retention, perimeter security and privacy necessary for manufacturing, logistics, and development projects.

Learn more

Block orders are ready to deliver today!

Projects

Connect With Us

Explore this solution further?

Let our experts guide you through implementation and answer your questions.