Ultra HD Retaining Wall
A fully customisable retaining wall unit designed to withstand the harshest environments.
What Makes Our Ultra HD Retaining Walls So Great?
Versatile
Customisable reinforcement design and position for different material loads and surcharges.
Installation
Units interlock for fast alignment and chamfered edges for easy join sealing.
Range
Retaining wall heights 1.0m to 6m above floor level.
Quality
Strong, durable, and easy to maintain, availble in CEM IIIA and self-healing mix options.
Reinforcement
Manufactured with reinforcement exposed at the toe and additional cover to reinforcment for marine environments.
Design
Will retain manterial with a density of 18kN/m2 and capable of taking surcharges up to 20kN/m2
"The precast walls from Modular Cubed were installed on time, which enabled us to keep the project on track. The quality of the walls was excellent, and the overall installed cost was very competitive compared to other options. We’ve worked on many projects with the M3 team, and they always deliver - l look forward to working with them again."
Neil Ellam – Glencar
Interactive 3D Product Viewer
Get to grips with our precast retaining walls in detailed 3D. See the product from every side and angle, getting a better feel for how it will fit into your project - Click on the 3D button below to start
Construction redefined
We provide a combined design, manufacture and installation service for all of our products.
Design
Our structural engineers draw on extensive experience and creative thinking in their retaining wall and foundation designs to reduce time and costs for your build.
Install
Our construction teams of civil engineers, groundworkers and precast installers take the stress and risk out of retaining wall construction, helping you do more with less.
Precast concrete that's exceptional by design
Our portfolio of precast concrete products includes the largest range of precast retaining walls available in the UK, and complete precast solutions for Warehouse & Distribution Centres. Offsite manufacturing is a tried and tested approach that works time and again. Many items are available from stock and combined with our extensive transport network, we can ensure prompt delivery nationwide. We pride ourselves on offering quality precast concrete products and exceptional customer service.
See our Precast Concrete in action
Not everyone’s a precast concrete expert – and it can be hard to find the right product for your project. Here is a selection of recent projects that show you what our precast products can be used for.
Frequently Asked Questions
Got a precast question you’re itching to know the answer to? Below you’ll find a selection of the most common questions we’re asked. If you can’t find what you’re looking for, simply get in touch; one of our team would love to help.
Heavy-duty retaining wall units are designed for applications where a higher surcharge capacity or extended design life are required. Installation of the precast units is quick and easy, the elements are manufactured with reinforcement exposed at the toe, allowing you to tie them into the mesh of a reinforced concrete floor slab before it’s poured. Once the units are cast into the concrete slab, no additional support is required, making them the perfect solution if you have no existing steelwork to fix to.
Cast-in retaining walls are used in projects like salt barns, waste transfer stations, silage clamps, slurry lagoons, bund walls, and material storage bays.

