The IG L1/S 100 Cavity Wall Lintel is a high-performance, standard-duty steel lintel specifically engineered for cavity wall construction. It is designed to support masonry loads over openings such as doors and windows while maintaining structural stability, thermal efficiency, and long-term durability.

This lintel is suitable for cavity widths ranging from 90mm to 105mm, making it a versatile solution for most typical residential and commercial wall builds. Its robust design and built-in insulation help reduce thermal bridging and improve energy efficiency in compliance with current building regulations.

Key Features

• Cavity Width Compatibility: 90–105mm

• Inner Leaf Support: 100mm block or brickwork

• Outer Leaf Support: Typically 102mm brickwork

• Durable Construction: Manufactured from pre-galvanised steel for corrosion resistance

• Built-In Insulation: Factory-fitted polystyrene insulation to reduce cold bridging

• Fire Performance: 1-hour fire rating under standard test conditions

• Thermal Performance: Compliant with Part L of UK Building Regulations

• Range of Lengths: Available in sizes from 600mm to 4800mm

Applications

• External and internal cavity wall openings

• New build homes and commercial projects

• Structural support for doors, windows, and patio openings

• Suitable for brick, block, or mixed masonry construction