Cavity Lintel 150mm – SL150 (STRESSLINE) – 900mm

The Stressline SL150 Cavity Lintel is a high-quality steel lintel designed for 150mm cavity wall constructions, offering strength, reliability and compliance for modern masonry builds. Engineered for standard-duty loading scenarios, the SL150 provides robust support over window and door openings in residential and light-commercial properties.Constructed from galvanised steel for superior corrosion resistance, this one-piece lintel incorporates a stepped profile to effectively manage load distribution across both the inner and outer leaf. Its built-in insulation enhances the thermal performance of the cavity wall, helping reduce cold bridging and improve overall building efficiency.Key FeaturesSuitable for 150mm cavity widths (typical 100mm inner & outer masonry leaves)Galvanised steel construction for long-lasting durabilityDesigned for standard masonry loads (e.g., brick/blockwork and typical roof/timber floor loads)Integrated insulation for improved thermal performancePre-galvanised finish ensures excellent moisture and weather protectionLightweight, one-piece design for faster onsite installationComplies with UK building regulations and industry standardsIdeal ForNew-build residential cavity wall constructionExtensions and refurbishments requiring a structured openingStandard window and door spansApplications where reliable load-bearing and thermal efficiency are required