Description
IG L1/HD 150 Steel Lintel
The IG Lintel L1 HD 150 is a galvanised steel cavity wall lintel designed for heavy duty applications within 150–165mm cavity walls. This 150mm Heavy Duty Lintel provides structural support above door and window openings while maintaining high load capacity and corrosion resistance. Manufactured from galvanised mild steel, the lintel is designed for residential and commercial cavity wall construction requiring increased structural performance.
Specifications
| Product type | 150mm Heavy Duty Lintel |
| Range | IG 100mm Inner Leaf Heavy-Duty Lintel |
| Material | Galvanised mild steel |
| Cavity width | 150–165mm |
| Outer leaf | 102mm |
| Inner leaf | 100mm |
| Height range | 126–194mm |
| Thickness range | 2.9–3.2mm |
| Length options | 1500mm, 2400mm |
| Load capacity | Up to 35kN (3:1) and 30kN (19:1) |
| Fire resistance | 30 minutes |
| Product codes | L1HD1501500, L1HD1502400 |
Key design features
The IG L1 HD 150 is designed for higher load applications within wider cavity wall construction. Increased steel thickness and deeper profile dimensions support heavier masonry loads across structural openings. The galvanised steel construction provides corrosion resistance while maintaining manageable handling during installation.
Benefits
- Designed for higher structural loading requirements.
- Galvanised steel construction provides long term corrosion resistance.
- Suitable for wider cavity wall construction.
- Supports residential and commercial masonry applications.
- Available in multiple lengths for different opening sizes.
Applications
This L1 HD 150 Lintel is used above doors, windows, and larger structural openings within cavity wall construction. The 150mm Heavy Duty Lintel is suitable for housing developments, commercial projects, and masonry applications where increased structural support is required.
Explore more
Explore the full range of steel lintels to find alternative cavity wall lintels, load capacities, and structural support solutions.
Contact us
For help selecting the correct Lintel or confirming suitability of the L1 HD 150 for your project, contact the team for technical advice and UK wide supply.





