Catnic

Catnic CH110/100 Heavy Duty 110mm Cavity Lintel

£115.00
Cavity Lintel

£95.83 (ex VAT)

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The Catnic CH110/100 Heavy Duty 110mm Cavity Lintel is designed for masonry cavity walls with a 110–125mm cavity, a 100–115mm inner leaf and a 100–102mm outer leaf. Its open-back steel profile allows masonry to be built up continuously on both leaves, while integral insulation, a built-in DPC and plaster key provide practical construction benefits. We supply 11 lengths from 900mm to 2400mm, with safe working loads of 32kN, 48kN or 45kN depending on length.

Catnic CH110/100 key features

Heavy duty loading

Designed for specified masonry, timber floor and roof loading applications in cavity-wall construction.

110–125mm cavity walls

Suitable for a 100–115mm inner masonry leaf and a 100–102mm outer leaf.

Open-back profile

Allows masonry to be built up continuously on both leaves and is suitable for fair-faced inner leaf masonry.

Built-in DPC

Incorporates a damp-proof course. Additional DPC may be required in certain installation or exposure conditions.

Integral insulation and plaster key

Continuous insulation helps reduce thermal bridging, while the integral plaster key assists plaster finishing.

Duplex corrosion protection

Manufactured from galvanised steel with Catnic's protective black polyester powder coating.

Dimensions and specification

Catnic CH110/100 technical specifications
Manufacturer Catnic
Product code CH110/100
Lintel type Heavy duty cavity wall lintel
Cavity width 110–125mm
Inner leaf 100–115mm
Outer leaf 100–102mm
Available lengths 900–2400mm, 11 sizes
Nominal section height 158mm
Nominal end bearings 150mm at each end
Safe working load 32kN, 48kN or 45kN, depending on length
Built-in DPC Yes. Additional DPC may be required in some situations.
Plaster key Integral
Insulation Continuous integral insulation
Finish Galvanised steel with black powder coating

Catnic CH110/100 sizes and safe working loads

The CH110/100's safe working load and nominal weight vary according to length. The table below covers all 11 sizes we supply, using Catnic's published specifications.

CH110/100 lengths, safe working loads and nominal weights
Length Safe working load Nominal weight
900mm 32kN 10.91kg
1050mm 32kN 12.74kg
1200mm 32kN 14.76kg
1350mm 32kN 16.61kg
1500mm 32kN 18.45kg
1650mm 32kN 20.01kg
1800mm 32kN 21.83kg
1950mm 48kN 28.37kg
2100mm 48kN 30.55kg
2250mm 45kN 32.74kg
2400mm 45kN 34.92kg

Where to use a Catnic CH110/100 lintel

The CH110/100 is intended for heavy duty masonry cavity-wall construction with a cavity width of 110–125mm. It supports specified masonry, timber floor and roof loads where the selected lintel's safe working load is sufficient.

Its open-back profile allows masonry to be built continuously on both leaves and is suitable for fair-faced inner leaf masonry.

Choosing the correct CH110/100 length

Catnic's published loading figures use nominal 150mm end bearings at each end. As a general starting point, add 300mm to the clear structural opening width to allow for these bearings.

For example, a 1200mm structural opening would normally require a 1500mm lintel, with 150mm bearing at each end. The selected lintel must also have sufficient safe working load for the loads above.

Installation and concrete floor support

Check the cavity width, masonry leaf dimensions and supporting wall construction before installation. Follow Catnic's guidance for end bearings, temporary propping and restraint.

When using Catnic CH and CX open-back lintels with concrete floors, the blockwork must be built tightly against the inner vertical face of the lintel. Catnic also requires a mortar joint at the top of the blockwork so that the floor units distribute their load evenly over the inner flange.

For standard duty applications with the same cavity dimensions, compare our Catnic CG110/100 Standard Duty Cavity Lintel.

For extra heavy duty requirements, we also supply the Catnic CX110/100 Extra Heavy Duty Cavity Lintel.

Browse our cavity lintel range and Catnic lintels for other sizes and loading requirements.

Technical downloads

Frequently asked questions

What cavity width is the Catnic CH110/100 designed for?

The CH110/100 is designed for 110–125mm cavities, with a 100–115mm inner masonry leaf and a 100–102mm outer leaf.

What lengths of Catnic CH110/100 do you supply?

We offer 11 lengths from 900mm to 2400mm. Choose your required size from the options above.

What is the safe working load of a CH110/100?

Catnic specifies 32kN for lengths from 900mm to 1800mm, 48kN for 1950–2100mm and 45kN for 2250–2400mm, subject to the manufacturer's published loading conditions.

Does the CH110/100 have a built-in DPC?

Yes. The CH110/100 incorporates a built-in damp-proof course. Additional DPC may be required depending on installation and exposure conditions.

Does the CH110/100 have insulation and a plaster key?

Yes. The CH110/100 includes continuous insulation and an integral plaster key.

Can the CH110/100 support concrete floors?

Catnic provides specific installation guidance for CH and CX open-back lintels supporting concrete floors. Blockwork must be built tightly against the inner vertical face, with a mortar joint at the top to distribute floor-unit loading evenly over the inner flange. The structural loads must also be checked.

How much end bearing does a CH110/100 need?

Catnic's published safe working loads are based on nominal 150mm end bearings at each end. Confirm the selected length and loading capacity before installation.

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Catnic Heavy Duty 125mm Cavity Lintel CH110/100 by Catnic

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