The Keystone Extra Heavy Duty Cavity Wall Steel Lintel provides robust and reliable support for construction projects with cavity widths ranging from 150mm to 165mm. Constructed from durable pre-galvanised steel and finished in a sleek zinc grey, this lintel ensures exceptional longevity and resistance to corrosion.

Designed for optimal load distribution, it is crucial to fill all joints with mortar and lay a mortar bed on top of blockwork before setting floor units to maximize structural integrity. Notably, this lintel meets the stringent thermal performance requirements across the UK, effectively contributing to the energy efficiency of buildings. Additionally, it boasts an impressive fire performance rating, having passed comprehensive testing to deliver up to one hour of fire resistance.

• Suitable for cavity widths of 150mm to 165mm
• Ensure all joints are filled with mortar
• Place mortar bed on blockwork before flooring
• Recommended to prop lintels during construction
• Colour: Zinc Grey
• Material: Pre-Galvanised Steel
• Meets Part L, F, and Section 6 thermal standards
• Achieves one-hour fire performance per BS 476