Birtley Extra Heavy Duty Steel Cavity Wall Lintel 750mm x 236mm – HDX70

The HDX70 is designed for extra heavy-duty applications in cavity walls with a cavity size of 70-85mm and has 100mm inner and outer leaves . This lintel requires solid, fully jointed blockwork infill to the inner leaf to ensure optimal performance. Key Features: Cavity Size: 70-85mm. Inner and Outer Leaf Width: 100mm. Installation Requirements: Must have solid, fully jointed blockwork infill to the inner leaf. Supergalv Coating: Offers superior life expectancy with hot-dip galvanization, providing up to 50% more zinc protection than other coatings. Fire Resistance: Birtley lintels have been tested to BS 476-20:1987 for fire resistance.