Above-Ground, No-Dig Fencing and Hoarding Systems
Elite Precast Concrete's Duo™ interlocking concrete blocks provide a robust, flexible and non-intrusive solution for above-ground fencing and hoarding systems.
Designed for rapid installation without excavation or foundations, Duo™ blocks are ideal for sites where ground penetration is restricted, impractical or prohibited.
As the sole UK manufacturer of Duo™ interlocking blocks, Elite Precast Concrete offers a proven precast system that delivers stability, speed and adaptability across a wide range of temporary and semi-permanent perimeter applications.
What Are Duo™ Interlocking Concrete Blocks?
Designed for No-Dig & Surface-Mounted Installations
Many sites require secure fencing or hoarding without disturbing underlying ground conditions or buried services.
Duo™ interlocking blocks enable surface-mounted fencing systems that rely on mass and interlocking geometry rather than excavation or fixings.
This makes the system particularly suitable for locations such as paved areas, concrete slabs, brownfield sites, utilities corridors and environmentally sensitive zones.
Why Choose Elite Precast
With decades of precast expertise, in-house engineering support and a proven delivery record on projects of every scale, Elite Precast is the partner specifiers trust. We pair robust, repeatable manufacturing with the flexibility to engineer bespoke solutions when a standard product will not do.
Key Applications
Duo™ interlocking concrete blocks are widely used to support above-ground fencing and hoarding for:
Construction site perimeters
Highways and infrastructure projects
Utilities and substations
Rail and transport environments
Industrial and logistics yards
Temporary site security and access control
Event, emergency, or contingency fencing
Fence panels, timber hoarding, mesh fencing, or acoustic barriers can be fixed or retained against the concrete block system to suit site-specific requirements.
Benefits
Key Benefits of Duo™ No-Dig Fencing Systems
No Excavation or Foundations Required – Blocks are installed directly onto a firm, level surface, avoiding ground disturbance and reducing programme time.
Rapid Installation and Removal – Systems can be deployed and dismantled quickly using standard lifting equipment.
High Stability Through Mass – The weight and interlocking design of Duo™ blocks provide resistance to wind loading and site impacts.
Modular and Reconfigurable – Fencing layouts can be altered, extended, or relocated as site boundaries or project phases change.
Cost-Effective and Reusable – Blocks can be reused across multiple projects, offering long-term value compared to disposable fencing systems.
Temporary Structures with Planning and Operational Advantages
Above-ground fencing and hoarding systems constructed using Duo™ blocks are typically classed as temporary or semi-permanent structures. As a dry-laid and relocatable solution:
Planning permission may not be required (subject to local authority approval)
Systems can be repositioned as site layouts evolve
Installation avoids service strikes and ground remediation
Reduced programme risk compared to in-ground fencing
Engineered for Your Environment
Design Flexibility and Configuration
Duo™ blocks can be arranged to form straight, cornered, or stepped perimeter runs, with system performance influenced by:
Fence or hoarding height and wind loading
Block size and stacking configuration
Ground bearing capacity
Site exposure and proximity to traffic or plant
Elite Precast Concrete provides stability and loading guidance to support safe and compliant above-ground fencing design.
Durability, Fire Performance and Finish
Manufactured from high-quality precast concrete, Duo™ blocks offer:
Excellent resistance to impact, weathering, and abrasion
Non-combustible performance suitable for high-risk environments
Moulded or trowelled face finishes to suit visual or operational needs
Concrete finish classified as basic in accordance with the National Structural Concrete Specification
Duo™ interlocking concrete blocks are manufactured in compliance with BS EN 1992-1-1:2004 – Design of Concrete Structures.
Safety and Installation Considerations
Blocks must be installed on a firm, level surface with adequate bearing capacity
Wind loading must be assessed for taller fencing or exposed sites
Blocks should be inspected prior to lifting and reuse
Fencing panels should be securely fixed or restrained to prevent movement
It is the customer's responsibility to ensure appropriate structural checks and site risk assessments are completed prior to installation.
Why Choose Duo™ Interlocking Concrete Blocks for This Application?
Elite Precast Concrete provides expert advice on the design and installation of above-ground, no-dig fencing and hoarding systems using Duo™ interlocking blocks, including:
Layout and configuration guidance
Stability and wind loading calculations
Technical support throughout the project lifecycle
Elite Precast Concrete – UK-manufactured precast solutions for secure, flexible and no-dig perimeter systems.