|Inner Leaf Width||125mm|
|Outer Leaf Width||95mm|
|Lengths||750mm - 4800mm|
|Steel Thickness||750mm-3000mm= 2.9mm and 3150mm -4800mm =3.2mm|
Suitable for cavity walls with cavities that are between 110mm and 125mm in width, the CFS/K extra heavy duty load lintel has been designed to bear a load much greater than a standard load lintel. This type of lintel has a wider inner leaf, which is suitable for supporting blockwork which would normally have a wider profile than brickwork. This lintel can support blocks on its inner leaf with a width up to 150mm (125mm inner leaf width + 25mm overhang)
These heavy duty load lintels are available in 150mm increments starting from 750mm up to 4800mm in order to support a wide variety of gap sizes.
Please note: The lintels width must ensure a 150mm minimum end bearing at each end, for example if there is a gap of 1800mm, you would need to add at least 300mm to the length of the lintel required.
This range of lintels has been constructed from high quality pre-galvanised mild steel and satisfy the thermal performance requirements of England and Wales’ Part L of the building regulations, Northern Ireland’s part F and Scotland’s technical handbook, section 6.
In order for the lintel to achieve the loading figures in the table below, the lintel must be installed correctly.
The figures also take into account the different loading types which are common in traditional cavity wall construction. These figures have been acquired through testing in accordance with the requirements of standards BS 5977 Part 2: 1983 and BS EN 845-2:2003
Differential Total UDL kN 19:1 (up to 95% loading on the inner leaf)
|Length (150mm increments)||Height (mm)||Steel Thickness (mm)||Total ULD kN 19:1|
|750 - 1500||229||2.9||70|
|1650 - 2100||229||2.9||60|
|2250 - 3000||229||2.9||50|
|3150 - 4000||229||3.2||45|
|4200 - 4800||229||3.2||40|