Catnic TH150/1001350 150mm Cavity Part L Heavy Duty Lintel

Catnic TH150/100 Heavy Duty Thermally Broken Cavity Lintel — 150mm Cavity | 1350mm

The Catnic TH150/100 (SKU: TH150/1001350) is a heavy duty thermally broken steel cavity wall lintel designed for 150mm cavity construction with a 100mm inner leaf. Featuring a complete thermal break and full insulation, it significantly reduces cold bridging at the lintel position, supporting compliance with Part L Building Regulations.

The open back profile allows masonry to be built up continuously on both the outer and inner leaf, and the fair-face inner leaf compatibility makes it suitable for exposed blockwork finishes. At 1350mm in length and 18.33kg, it is engineered to support typical masonry, timber floor, and roof loads found in most buildings.

Key Features

• Heavy duty rating — supports masonry, timber floor, and roof loads
• Complete thermal break with full insulation — minimises cold bridging
• Open back profile — allows continuous masonry build-up on both leaves
• Suitable for fair-face inner leaf masonry
• Integral plaster key for easy internal finishing
• Catnic signature black powder coating over hot-dip galvanised steel
• Supports Part L Building Regulations compliance
• Cavity: 150mm | Inner leaf: 100mm | Length: 1350mm | Weight: 18.33kg

Typical Applications

• Heavy duty openings in 150mm cavity masonry wall construction
• New build residential and commercial projects requiring Part L compliant lintels
• Projects with masonry, timber floor, or roof loads over openings
• Fair-face inner leaf masonry finishes

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