Description
IG L1 HD 100 Lintel
The IG L1 HD 100 Lintel is a galvanised steel cavity wall lintel designed for heavy duty applications within 90–105mm cavity walls. This Heavy Duty Lintel provides structural support above door and window openings in brick and block construction. The IG Lintel L1 HD 100 is manufactured from galvanised mild steel to provide high load capacity, corrosion resistance, and long term structural performance in residential and commercial buildings.
Specifications
| Product type | Heavy Duty Lintel |
| Range | IG 100mm Inner Leaf Heavy Duty Lintel |
| Material | Galvanised mild steel |
| Cavity width | 90–105mm |
| Outer leaf | 102mm |
| Inner leaf | 100mm |
| Height range | 109–199mm |
| Thickness range | 2.9–3.2mm |
| Length options | 1500mm, 2100mm, 2700mm, 3000mm |
| Load capacity | Up to 40kN (3:1) and 35kN (19:1) |
| Application | Heavy duty brickwork and blockwork openings |
| Product codes | L1HD1001500, L1HD1002100, L1HD1002700, L1HD1003000 |
Key design features
The L1 HD 100 Lintel is designed for higher load applications within standard cavity wall construction. Increased steel thickness and deeper profile dimensions support heavier masonry loads across wider openings. The galvanised steel construction provides corrosion resistance while maintaining manageable handling on site.
Benefits
- Designed to support higher structural loading requirements.
- Galvanised steel construction provides long term corrosion resistance.
- Suitable for standard cavity wall masonry construction.
- Wide range of lengths supports different opening sizes.
- Compatible with residential and commercial building projects.
Applications
This IG l1 HD 100 is used above door and window openings where increased structural loading is present. It is suitable for housing developments, commercial buildings, and larger cavity wall openings requiring additional masonry support and reliable load distribution.
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 IG L1 HD 100 Lintel or confirming suitability for your project, contact the team for technical advice and UK wide supply.





