Birtley CB90 – 2400mm

The Birtley CB90 is a high-quality mild steel lintel designed for load-bearing applications in cavity walls with a cavity width of 90-105mm. It features a robust 65-micrometre hot dip galvanised coating (Supergalv), providing increased durability and longevity. This lintel is specifically engineered with 100mm inner and outer leaves, making it a suitable choice for both trade professionals and DIY enthusiasts aiming to ensure structural integrity in their building projects.

With a height of 141mm and a weight of 10.1 kg/m, this lintel can support a technical load capacity of 22 kN, making it ideal for standard duty applications. The factory-fitted expanded polystyrene insulation significantly improves thermal performance, helping to reduce thermal bridging by up to 55%. It is important to note that the Birtley CB90 must be fully bedded on bricklaying mortar and is not suitable for point loads or concrete floors.

Specifications

Type: Mild Steel Lintel
Length: 2400mm
Height: 141mm
Weight: 10.1 kg/m
Cavity Width: 90-105mm
Inner Leaf Thickness: 100mm
Outer Leaf Thickness: 100mm
Technical Load Capacity: 22 kN (SWL/UDL)
Finish: 65-micrometre hot dip galvanised (Supergalv)
Insulation: Factory fitted expanded polystyrene
Installation Requirements: Must be fully bedded on bricklaying mortar, suitable for external cavity walls, cavity tray required, not suitable for point loads or concrete floors

Key Features

• Constructed from durable S275JR mild steel
• Hot-dip galvanised after fabrication for superior life expectancy
• Includes factory fitted insulation to improve thermal efficiency
• Reduces thermal bridging significantly
• Designed for cavity walls with specific thickness requirements