Heavy duty steel lintel designed to support:

• Triangulated masonry load.
• Supporting uniformly distributed masonry load.
• Supporting uniformly distributed timber floor and roof loads.
• Suitable for fair faced inner leaf masonry.
• Supports concrete floors.
• Attic truss loads.
• Larger span multiple truss loads.

The cavity wall lintel provides structural support for each masonry leaf and can be securely positioned across the cavity as a one-piece solution. The outer and inner leaves are connected by a single piece of steel extending from the front to the back.

Catnic cavity wall lintels come with CFC and HCFC-free insulation, shaped to optimise thermal performance along the entire length, preventing ‘cold spots’. 

Catnic offers over 80 cavity lintels for 50-205mm cavities with varying load capacities.

Browse our range below

Catnic produce a range of open back heavy duty cavity wall lintels, suitable for the following cavity sizes:

• 50–65 mm,
• 70–85 mm,
• 90–105 mm,
• 110–125 mm,
• 130–145 mm,
• 150–165 mm.

Lintel features and benefits:

• Heavy duty.
• Easy-to-use open back profile: Allows masonry to be built up continuously on both outer and inner leaf.
• Materials used in Lintels: The CG, CH and CX ranges are formed from galvanized steel, then powder coated.
• Duplex corrosion protection: Ensures optimum durability and longevity.
• Built-in DPC: Saves time in construction and means cavity is easy to clean without risk of damage to DPC.
• Integral Plaster key: With staggered slots applied to the inner flange and ribbed underside of insulation (perforated steel baseplate on CH and CX range).
• Continuous insulation: Maximising thermal efficiency, minimizing cold bridging.

Lintel Safe Working Loads (SWL) and weight are dependent on lintel's length.