Product Information

Wall Construction
Cavity Wall
Outer Leaf
Inner Leaf
Wall Width
Loading Conditions
Extreme Load


Product Code Standard Length (mm) SWL (kN) 1:1/3:1 Weight (kg) Nominal Height (mm)
CBP110/1002850 2850 88 112.63 263
CBP110/1002950 2950 88 116.58 263
CBP110/1003000 3000 88 118.56 263
CBP110/1003100 3100 79 122.51 263
CBP110/1003250 3250 79 128.44 263
CBP110/1003300 3300 79 130.41 263
CBP110/1003350 3350 79 132.39 263
CBP110/1003400 3400 79 134.37 263
CBP110/1003450 3450 79 136.29 263
CBP110/1003500 3500 79 138.32 263
CBP110/1003600 3600 79 142.27 263
CBP110/1003700 3700 79 146.22 263
CBP110/1003750 3750 79 148.20 263
CBP110/1003900 3900 79 154.13 263
CBP110/1003950 3950 79 156.11 263
CBP110/1004000 4000 79 158.08 263
CBP110/1004100 4100 79 162.03 263
CBP110/1004150 4150 79 164.00 263
CBP110/1004200 4200 79 165.98 263
CBP110/1004250 4250 79 167.96 263
CBP110/1004400 4400 79 173.88 263
CBP110/1004500 4500 79 177.83 263
CBP110/1004600 4600 79 181.79 263
CBP110/1004650 4650 79 183.76 263
CBP110/1004850 4850 74 191.59 263
CBP110/1005400 5400 70 213.41 263
CBP110/1005500 5500 66 217.27 263
CBP110/1005700 5700 66 225.17 263
CBP110/1006000 6000 63 237.02 263
CBP110/1006300 6300 60 248.98 263
  • The SWL (safe working load) is based on the total UDL (uniform distributed load) over maximum span using 150mm end bearings.
  • Standard lengths are available in increments of 50mm at lengths up to 6600mm.


Extreme duty steel lintel for use in masonry cavity wall construction, designed to support extreme loads or to be used at long spans in external cavity walls. Non insulated with option for expanded metal mesh secured to the base plate, manufactured from structural steel then post galvanised
  • Hot Dip Galvanised
  • Made in the UK for a lower carbon footprint and certified to BES 6001 Responsible Sourcing standard.
  • Made using lower carbon manufacturing
  • It is possible to reuse all of our lintels, providing that they are not damaged. Contact our technical team for more information
  • Galvanised steel

What our customers think

Video Guides

When selecting a lintel, there are three factors that should be considered to ensure the correct specification: the type of wall construction, the dimensions of the structural opening and the total load on the lintel. In this video, we run you through the lintel selection process.

Catnic thermally broken lintel installation

Once you have chosen the correct lintel for your project, it is crucial that the lintel be installed properly – if it is not, it could lead to serious issues for the building. In this video, we explain the installation considerations for cavity wall lintels.

Builder installed Catnic CG90/100 lintel

Catnic’s Thermally Broken Lintel is the only lintel on the market to provide a complete thermal break between the inner and outer leafs. In this video, we outline the key benefits of Thermally Broken Lintels and explain the installation process.

Catnic TS90/100 lifted into position by builders

Steel lintels, and specifically Catnic's thermally broken lintels, have a significant role to play in reducing thermal bridging and achieving carbon gains. They represent one of the simplest and most economical ways for building fabric to be designed and constructed to help achieve the carbon gains necessary to meet current and future building regulations.

Catnic balcony installation at kingsdown gate

Support & FAQs

Calculating the load imposed on lintels depends on a variety of factors, including the wall type in which the lintel is installed, and whether floor or roof loads need to be accounted for in addition to masonry loads. Lintels are primarily design to support uniformly distributed loads (UDLs) but on occasions point loads also need to be considered. This guide only provides an overview of how the loads on lintel are established and should not be used as a substitute for obtaining loading calculations either direct from the lintel manufacturer or from a qualified structural engineer.

Specifying Catnic’s Thermally Broken Lintels (TBLs) will significantly improve the thermal efficiency of a property and help ensure that the project’s necessary environmental credentials are met. Specifying Catnic TBLs can be done with ease as they have the same safe working loads as Catnic’s traditional lintels – meaning TBLs can be specified like for like. Catnic TBLs can also be used for standard duty, heavy duty and extra heavy use, making them suitable for a wide range of projects. You'll find our full range here

The correct specification of lintels is crucial, however it is just as important to ensure that each one is installed correctly. Here are five top tips to ensure an trouble free installation. To watch our video on installing cavity wall lintels click here

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