We stock a wide range of Catnic steel lintels for cavity walls, solid walls, timber frame construction, and internal masonry openings, available for delivery across the UK.
Our range includes Catnic cavity lintels, box lintels, heavy duty lintels, and timber frame lintels in a variety of sizes and loadings.
Catnic manufacture a wide range of steel lintels designed for different wall constructions, loading requirements, and thermal performance needs. Choosing the correct lintel depends on the wall type, cavity size, structural loading, and whether thermal bridging needs to be reduced.
Suitable for larger spans and higher structural loads.
If you're unsure which lintel is suitable for your project, always refer to the manufacturer's load tables and structural requirements before ordering.
Common Features of Catnic Lintels
Manufactured from hot dip galvanised steel
Selected ranges include Duplex Corrosion Protection for additional durability
Options available for cavity walls, solid walls, internal walls, and single leaf construction
Insulated and thermally broken lintel options available
Manufactured in accordance with EN 845-2 standards
BBA certified ranges available
Popular Catnic Lintel Sizes
Catnic lintels are available in a wide range of standard lengths to suit typical residential and commercial openings.
Small Window Openings
900mm - 1200mm lintels commonly used for smaller residential windows.
Standard Doors and Windows
1500mm - 1800mm lintels suitable for many standard openings.
Wide Openings and Larger Spans
2100mm and above for larger structural openings and wider spans.
Always allow for the required end bearing and loading conditions when selecting a lintel size.
Thermal Performance
Modern building regulations place increasing importance on reducing thermal bridging around window and door openings. Catnic offers both insulated and thermally broken lintels designed to improve thermal efficiency within cavity wall construction.
Thermally broken Catnic TS lintels are specifically designed with a complete thermal break between the inner and outer steel sections, helping reduce heat transfer through the wall structure while maintaining structural performance.
Insulated cavity wall lintels are also available across various Catnic ranges to support compliance with current Part L thermal performance requirements.
