We recognise there is a fundamental need to secure your business critical assets, from vacant land, development sites and compounds, to plant, materials and fuel. As a leading provider of sustainable security, we are perfectly positioned to secure, monitor and protect your valuable assets.

Assets Link

XL 4700kg Block

Introducing the XL 4700kg block, our newest and biggest concrete block for when you need added robustness and protection.

Get a quote Link
xl concrete barrier blocking a warehouse
xl concrete barrier blocking a warehouse

An Extra Large Block for Extra Protection

Crafted with durability in mind, this block serves as a formidable barrier against unauthorised access on vacant sites or during events. The XL blocks weigh approximately 4700kg (4.7 tonnes) and measure 3.2m in length, 0.8m in height, and 0.8m in depth.

It effectively secures access roads, gateways, site perimeters, and industrial entrances. Additionally, it offers potential application in Hostile Vehicle Mitigation (HVM) measures for events.


xl block

XL 4700 Dimensions

Length3200 mm
Height800 mm
Width800 mm
Weight4700 kg
xl block being transported

How can this block be transported?

The base features partial forklift truck slots covering 2/3 of its surface. Deliveries, collections, or repositioning are handled by our in-house haulage vehicles, equipped with either a truck-mounted crane (Hiab) or a machinery carrier with a telehandler.

xl concrete barrier blocking a warehouse

Why go XL?

  • Enhanced size and weight for greater effectiveness as a barrier
  • Suitable for securing wider areas like access roads, gateways, and site perimeters
  • Potential application in Hostile Vehicle Mitigation (HVM) measures at events
  • Ability to be stacked for added deterrent against unwanted entry
concrete road block examples

Why use an interlocking block?

Interlocking blocks can be arranged into temporary retaining walls and barriers to prevent soil slippage on construction sites, bolster foundations during groundwork, and establish a sturdy physical barrier for worker protection.

Once stacked and secured, the blocks are immovable and can endure water pressure and fire, serving as a barrier to manage floodwaters and thwart perimeter breaches by fire.

These blocks are utilised in numerous situations as a safety measure, whether to mitigate environmental hazards, deter unauthorised access, or create a partition to contain soil or store loose materials.

Clearway building

Why Clearway?

  • Nationwide Delivery: We offer nationwide delivery, ensuring our services are accessible across the UK.
  • Delivered Directly to Site: Blocks are delivered directly to your site, saving you time and hassle.
  • Fast Delivery for Quick Response to Security Threats: With our efficient delivery system, we provide fast responses to security threats, ensuring prompt reinforcement and protection.
  • 30+ Years of Experience: Benefit from our extensive 30+ years of experience in the industry, guaranteeing reliable and professional service.
  • Rental Periods Available: Flexible rental periods are available to suit your project needs, providing cost-effective solutions for short or long-term requirements.
Stackable Concrete Blocks from Clearway

Related Blocks

  • Concrete Jersey Barriers – Jersey barriers are another variation of concrete barrier block, used as roadway barriers for high-impact sites and as edge protection to prevent unauthorised access to private premises and commercial or construction sites. Interlocking barriers are used to route and restrict traffic and enhance safety for workers adjacent to busy, high-speed carriageways.
  • Stackable Concrete Blocks – These versatile concrete blocks can stack horizontally or vertically, creating a bespoke barrier or retaining wall of any dimensions you require. The stacking process allows you to build a secure, robust defence to prevent soil slippage, as a flood defence, or short-term material storage bay.

Contact us now

Contact our experts now to discuss your requirements and get a quote from us.

Call 0800 085 8695 or email us at

Back to top

What are you looking for?