Vertical Cantilever Retaining Wall
Prestressed panels installed vertically for durable, flush walling
Why choose vertical cantilever walls?
Cantilever systems provide strength and durability while eliminating the need for exposed steelwork.
- No exposed steel – panels are cast directly into the footing, so there’s nothing above ground to corrode or fail in a fire.
- Strong and permanent – once the footing is poured, the wall becomes a monolithic structure with no need for extra fixings.
- Flush wall face – provides a smooth, continuous surface that’s easy to clean and maintain, especially in silage and slurry applications.
- Watertight joints – tongue and groove edges can be sealed to create water-tight walls for storing liquids.
- High performance – with surcharge capacity up to 20 kN/m², fire resistance up to 120 minutes, and a design life of up to 100 years, vertical cantilevers are engineered for demanding applications.
- Flexible heights – panels can be designed to achieve wall heights from 1.5m up to 6m above finished floor level.
Whether you’re building silage clamps, slurry stores, or fire and blast walls, you’ll get:
Response from the team within 4 working hours
Full technical support, including product datasheets, O&M manuals and CAD files
Short lead times with UK-wide delivery (2–4 weeks typical for larger orders)
Retaining walls designed for liquid storage and fire protection
When you need retaining walls that are strong, permanent, and free of exposed steelwork, vertical cantilever walls are the ideal solution. Using prestressed panels installed vertically into a reinforced concrete footing, they provide a seamless, continuous wall face suitable for storing liquids or protecting against fire and blast.
Panels are placed into cradles, temporarily propped, and anchored into the footing reinforcement. Once the concrete is poured and cured, the props are removed, and the wall becomes a permanent cantilever system. No additional support is needed, making this system perfect where steelwork might be vulnerable from fire or corrosive liquids.
Product Features & Specifications of Vertical Cantilever Retaining Walls
Vertical cantilever walls use prestressed panels cast into reinforced footings to create durable, flush wall faces. Here’s what makes them ideal for liquid storage and fire protection.
Wall heights: Typically 1.5m to 6.0m above finished floor level
Wall heights can be tailored to your project by selecting the appropriate panel length.
Panel thickness: 100mm, 150mm, 180mm, 280mm
Choose the right thickness to match material densities and surcharge requirements. Thicker panels are best for heavy-duty applications such as slurry or fire walls.
Material density: Up to 18 kN/m³
Suitable for storing silage, slurry, and other high-density agricultural materials.
Surcharge capacity: Up to 20 kN/m²
Panels are designed to handle surcharges up to 20 kN/m², depending on thickness and foundation design, making them suitable for dense materials and demanding applications.
Concrete strength: C60 mix
High-grade C60 concrete provides durability, long-term strength, and resistance to aggressive liquids.
Connection: Cast into a reinforced concrete footing
Panels are set into cradles and tied into the reinforcement cage before pouring the footing. Once cured, the wall becomes self-supporting.
Design life: Upto 100 years
With the right panel thickness and reinforcement cover, vertical cantilever walls can be designed for a service life of up to 100 years.
Reinforcement cover: 30mm minimum
Protects steel strands from corrosion, extending durability in aggressive environments.
Fire resistance: Up to 120 minutes
Provides added safety in fire and blast wall applications. Performance depends on panel thickness and design.
Edge detail: Chamfered edges
Chamfered edges reduce visible chipping during handling and provide a neater finished wall.
Finish: Smooth mould finish to the front face
The front face is smooth-mould finished for a clean, professional appearance. The rear face is hand-trowelled.
Foundation type: Reinforced concrete footing
Panels are installed into a reinforced trench footing, where they are tied into the reinforcement before the pour.
Wall Sizes, Dimensions & Product Range
Vertical cantilever panels are manufactured in four standard thicknesses – 100, 150, 180 and 280mm – and can be supplied in lengths to achieve wall heights from 1.5m to 6.0m above finished floor level.
| Height (mm) | Length (mm) | Width (mm) | Weight (kg) |
|---|---|---|---|
| 1,500 - 6,500 | 1,000, 1,200 & 1,500 | 150 | Varies |
| 1,500 - 6,500 | 1,000, 1,200 & 1,500 | 180 | Varies |
| 1,500 - 6,500 | 1,000, 1,200 & 1,500 | 280 | Varies |
A Partner You Can Trust
We’ve supplied precast retaining walls for over 18 years, delivering more than 1,000 projects across the UK. Contractors, farmers, and engineers come back to us because we’re straight-talking, reliable, and invested in getting projects done right.
Off-site production also means less disruption, less waste, and reduced dust on site – making projects cleaner, safer, and more efficient for everyone involved.
Typical Applications
Vertical cantilever walls are a popular choice for agricultural and industrial projects where durability and liquid resistance are essential. They’re widely used for silage clamps, slurry stores, and fire and blast walls.
Silage Clamps
Slurry Stores
Fire & Blast Walls
“We’ve been in the construction industry for over 20 years, and their service has been second to none. The prices are very competitive, but more importantly, the product is of a high standard, and the customer service is outstanding. Deliveries are always on time and well organised, and problems, which are very rare, are always resolved promptly.”
James Boulton - Rase Steels
Download the full Vertical Cantilever Wall Media Pack
One download with everything you need — brochure, O&M information, and safety data sheets.
