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Birtley  |  SKU: BIRHD90/750

Birtley 290-310 Heavy Duty Cavity Walls HD90 750mm - 4800mm

Length

£71.11 Ex VAT
£85.33 Inc VAT
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The Birtley 290-310 Heavy Duty Cavity Wall Lintel HD90 is designed to provide robust structural support for cavity walls. It is suitable for heavy-duty applications, particularly in projects requiring reinforced load-bearing over windows, doors, or other large openings in cavity walls. This lintel is versatile and offers a strong solution for a variety of constructions needs, providing long-lasting stability and protection. This lintel is available in a variety of lengths from 750mm to 4800mm.


  • Superior life expectancy due to the Supergalv coating.
  • Lack of baseplate and factory fitted insulation reduces thermal bridging. 
  • Plaster key to inner-leaf.
  • Galvanised post-fabrication to provide superior paint protection.
  • Structural grade steel to EN10025.

 

External Wall Lintel Load:

Length (mm)

750-

1800

1950-

2400

2550-

2700

2850-

3000

Load SWL/UDL value (kN)

70

60

60

55

Weight 

(kg/m)

14.8

14.8

17.6

17.6

Height (mm)

231

231

232

232


Length (mm)

3150-

3600

3750-

4200

4350-

4800

4950-

5100

Load SWL/UDL value (kN)

45

40

35

25

Weight 

(kg/m)

17.6

17.6

17.6

17.6

Height (mm)

232

232

232

232

 

Requirements for Installation:

This lintel must be bedded fully on bricklaying mortar with a cavity tray. The minimum end bearing for this lintel is 150mm. 

  • Size
    750mm-4800mm
  • Thickness
    231mm / 232mm
  • Length
    750mm, 900mm, 1050mm, 1200mm, 1350mm, 1500mm, 1650mm, 1800mm, 1950mm, 2100mm, 2250mm, 2400mm, 2550mm, 2700mm, 2850mm, 3000mm, 3300mm, 3600mm, 3900mm, 4200mm, 4500mm, 4800mm
  • Width
    275mm
  • Material
    Galvanised Steel
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