Description
Product Description
The Birtley CB150 is a standard duty cavity wall lintel designed for supporting masonry over 1800mm openings. Manufactured from hot-dip galvanized steel, it offers enhanced corrosion resistance and long-term structural reliability. Suitable for external cavity walls with 100mm inner and outer leaves and a cavity width of 150–170mm, it ensures consistent performance in residential and light commercial builds.
Product Specification
– Type: Cavity Wall Lintel
– Model: CB150
– Length: 1800mm
– Cavity Width: 150–170mm
– Outer Leaf: 100mm
– Inner Leaf: 100mm
– Material: Hot-Dip Galvanized Steel
– Duty Rating: Standard Duty
– Load Capacity: 20kN SWL
– Weight: Approx. 10.7kg/m
– Height: 117mm
– Application: External cavity walls
– Compliance: Must be used with cavity tray
Additional Features
– Post-fabrication galvanizing for superior zinc protection
– No baseplate or insulation to reduce thermal bridging
– Compatible with render mesh and plaster key options
– Suitable for brick or block construction