Birtley SB100 Standard Duty Internal Wall Box Lintel – 1800mm

The Birtley SB100 is a premium standard duty internal wall box lintel designed for use with 100mm block constructions. Constructed from mild steel S275JR, this lintel features post-fabrication galvanising to ensure maximum protection against corrosion, thereby enhancing its durability and extending its lifespan. It's suitable for both trade professionals and DIY enthusiasts who require reliable support in their wall constructions.

With a load capacity of 20 kN and a fire rating of 60 minutes when finished with two coats of plaster, this lintel meets high-performance standards while remaining easy to install. The SB100 also offers optional insulation to improve thermal efficiency, making it an ideal choice for achieving optimal building standards.

Specifications

Type: Standard Duty Internal Wall Box Lintel
Length: 1800mm
Height: 142mm
Cavity: 100mm
Material: Mild Steel S275JR
Coating/Finish/Colour: 65µm Hot Dip Galvanised
Load Capacity (L): 20 kN
Weight per metre (W): 6.7 kg/m
European Standard: BS EN845-2:2013+A1:2016
Fire Rating: 60 mins (with 2 coat plaster finish)

Key Features

• Supergalv coating offers superior life expectancy
• Post-fabrication galvanising leaves no surface with inferior paint protection
• Structural grade steel to EN10025
• Insulated version available
• Requires a cavity tray for external walls