Birtley Heavy Duty Internal Wall Box Lintel SB140HD
- Hot-dip galvanize finish
- 150mm Minimum end bearing
- Reduces thermal bridging
- Factory fitted insulation
Heavy Duty Internal Wall Box Lintel with Expanded Polystyrene. Special features include lack of baseplate and factory fitted insulation; which reduces thermal bridging and post-fabrication galvanizing, leaving no surface with inferior paint protection. This product must be used with a cavity tray - External walls only.