Birtley Heavy Duty Cavity Timber Frame Lintel 100mm TF90HD Length:4500mm so only mix a sufficient

so only mix a sufficient amount for immediate use

ensuring hassle-free maintenance​

this insulation solution is one of the most energy-efficient options available today

They are pressure treated and suitable for external use away from aquatic life

This box lintel is suitable for solid walls 200 to 225mm 8" / 9"

Birtley Heavy Duty Cavity Timber Frame Lintel 100mm TF90HD Length:4500mm so only mix a sufficientThe Birtley Heavy Cavity Timber Frame Lintel TF90HD excels in providing robust support for 90105mm cavity walls, with a Supergalv coating offering up to 50% more zinc protection than other coatings. Engineered for heavy duty timber frame applications, this Birtley Lintel ensures long lasting performance, superior corrosion resistance, and compliance with stringent British and European standards. Its optional expanded polystyrene insulation enhances