The Slot Blok™ Barrier by Blok ’N’ Mesh provides a secure and highly visible solution for traffic lane separation and temporary site fencing. The water filled barrier is designed to fit an industry standard temporary mesh fence panel.

• Highly visible colours
• Designed for 3.5 m wide temporary fencing panels
• Easy to install and interlock — can be rotated up to 45° for flexible layouts
• Withstands wind speeds of up to 90 km/h

When filled with water, the Slot Blok™ Barrier provides an exceptionally stable and durable solution for traffic lane management or site perimeters. Two connected Slot Blok™ units create a solid base for a 3.5 m wide temporary fencing panel, ensuring an effective and weather-resistant boundary.

Each Slot Blok™ consists of two interlocking sections – one red and one white – each 1.75 m in length, in which you can place a standard size construction fence (3.5 m length). This colour combination delivers a strong visual signal, enhancing safety and visibility on construction sites, roadworks, or restricted zones.

With an empty weight of just 14 kg per unit and a filled weight of 160 kg (per Blok), the Slot Blok™ offers both portability and strength. The smooth, rounded shape eliminates tripping hazards, making it ideal for both pedestrian and vehicle areas.

Tests have shown that the Barrier can withstand wind gusts of up to approximately 90 km/h, making this barrier a reliable choice for various applications in traffic and on construction sites.

Why choose the Slot Blok™ Barrier?

The Slot Blok™ Barrier delivers a safe, flexible, and highly stable fencing base that’s perfect for construction sites, roadwork zones, and event perimeters. Its robust, water-filled design combines visibility with durability — a practical solution for modern site safety requirements.

Compatible with:

• Fence panel: RT Standard fence panel & RT Standard Anti-Climb fence panel
• Couplers: Standard Coupler & Anti-Tamper Coupler

Colours: red & white 
Compatible with standard size (3.5 m x 2 m) mesh fencing
Weight (empty): 14 kg per section
Weight (filled): 160 kg per section

Slot Blok Barrier - White

Width: 1.75 m (3.5 m per pair)
Height: 0.6 m