The SB140HD Heavy Duty Steel Internal Wall Box Lintel designed specifically for loadbearing walls with a cavity depth of 140mm. This robust lintel provides exceptional strength and stability for internal block walls, ensuring a safe and reliable structure.

Brand Name	Birtley Lintels
Colour	string
Material	Mild Steel
Manufacturer Model No	203/093/04312
Wear Type	string
Type	Box Lintel
Certifications Met	string
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Protects From	string
Waterproof	string
Number of Pockets	string
Key Features	Designed for load-bearing internal block walls
Fire Rating	Offers a fire resistance rating of up to 60 minutes with a two-coat plaster finish