Catnic Extra Heavy Duty 130mm Cavity Lintel CX130/100 by Catnic Catnic Extra Heavy Duty 130mm Cavity Lintel CX130/100 by Catnic
Catnic Extra Heavy Duty 130mm Cavity Lintel CX130/100 by Catnic Catnic Extra Heavy Duty 130mm Cavity Lintel CX130/100 by Catnic
Catnic Extra Heavy Duty 130mm Cavity Lintel CX130/100 by Catnic Catnic Extra Heavy Duty 130mm Cavity Lintel CX130/100 by Catnic
Catnic Extra Heavy Duty 130mm Cavity Lintel CX130/100 by Catnic Catnic Extra Heavy Duty 130mm Cavity Lintel CX130/100 by Catnic
Catnic Extra Heavy Duty 130mm Cavity Lintel CX130/100 by Catnic
Catnic Extra Heavy Duty 130mm Cavity Lintel CX130/100 by Catnic
Catnic Extra Heavy Duty 130mm Cavity Lintel CX130/100 by Catnic
Catnic Extra Heavy Duty 130mm Cavity Lintel CX130/100 by Catnic
Lintel Type : Cavity Lintels
Cavity Width : 130-145mm
Lintel Duty : Extra Heavy Duty
Thermally Broken : No
Wide Inner Leaf? No

Catnic

Catnic CX130/100 Extra Heavy Duty 130mm Cavity Lintel

£142.00
Cavity Lintel

£118.33 (ex VAT)

Length

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The Catnic CX130/100 Extra Heavy Duty 130mm Cavity Lintel is designed for high-load masonry cavity walls with a 130–145mm cavity, a 100–115mm inner leaf and a 100–102mm outer leaf. Its open-back steel profile supports specified masonry, floor and roof loads, while continuous insulation, an integral plaster key and built-in DPC provide practical construction benefits. We supply 19 lengths from 900mm to 4200mm, with safe working loads ranging from 32kN to 60kN depending on length.

Catnic CX130/100 key features

Extra heavy duty loading

Designed for demanding cavity wall openings, with safe working loads up to 60kN depending on length.

130–145mm 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 accommodates fair-faced inner leaf masonry.

Built-in DPC

Incorporates a damp-proof course. Additional DPC may be required depending on installation and 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 CX130/100 technical specifications
Manufacturer Catnic
Product code CX130/100
Lintel type Extra heavy duty cavity wall lintel
Cavity width 130–145mm
Inner leaf 100–115mm
Outer leaf 100–102mm
Available lengths 900–4200mm, 19 sizes
Nominal section height 232mm
Nominal end bearings 150mm at each end
Safe working load 32–60kN, 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 CX130/100 sizes and safe working loads

The CX130/100's safe working load and nominal weight vary according to length. The table below covers all 19 sizes we supply, using Catnic's current technical specifications.

CX130/100 lengths, safe working loads and nominal weights
Length Safe working load Nominal weight
900mm 60kN 16.04kg
1050mm 60kN 18.71kg
1200mm 60kN 21.38kg
1350mm 60kN 24.06kg
1500mm 60kN 26.73kg
1650mm 60kN 29.40kg
1800mm 60kN 32.08kg
1950mm 60kN 34.45kg
2100mm 60kN 37.42kg
2250mm 60kN 40.10kg
2400mm 60kN 42.77kg
2550mm 60kN 45.44kg
2700mm 60kN 48.11kg
2850mm 55kN 50.79kg
3000mm 55kN 53.46kg
3300mm 50kN 70.75kg
3600mm 50kN 77.18kg
3900mm 50kN 83.62kg
4200mm 32kN 90.05kg

Where to use a Catnic CX130/100 lintel

The CX130/100 is intended for extra heavy duty masonry cavity-wall construction with a 130–145mm cavity. It supports specified masonry, timber floor and roof loads, including suitable concrete floor and attic truss loading arrangements where the structural design and manufacturer guidance permit.

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

Choosing the correct CX130/100 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 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 proposed construction.

Installation and support requirements

Both masonry leaves should be raised together, and the supporting wall construction must provide suitable end bearings. Follow Catnic's guidance for temporary propping, load transfer and lateral restraint during construction.

For concrete floor applications using Catnic CH and CX open-back lintels, build the blockwork tightly against the lintel's inner vertical face. Add a mortar joint at the top of the blockwork so floor units distribute their load evenly across the inner flange.

For lower loading requirements with the same cavity dimensions, compare our Catnic CH130/100 Heavy Duty Cavity Lintel or Catnic CG130/100 Standard Duty Cavity Lintel.

For extra heavy duty construction with a wider cavity, we also supply the Catnic CX150/100 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 CX130/100 designed for?

The CX130/100 is designed for 130–145mm cavities, with a 100–115mm inner masonry leaf and a 100–102mm outer leaf.

What lengths of Catnic CX130/100 do you supply?

We offer 19 lengths from 900mm to 4200mm. Choose your required size from the options above and check its safe working load before ordering.

What is the safe working load of CX130/100?

Catnic specifies 60kN for lengths from 900mm to 2700mm, 55kN at 2850–3000mm, 50kN at 3300–3900mm and 32kN from 4200mm upwards, subject to the manufacturer's loading conditions.

Does the CX130/100 have a built-in DPC?

Yes. The CX130/100 incorporates a built-in damp-proof course. Additional DPC may be required depending on installation and exposure conditions.

Does the CX130/100 include insulation and a plaster key?

Yes. The CX130/100 includes continuous insulation and an integral plaster key.

Can the CX130/100 support concrete floors?

Catnic provides installation guidance for CH and CX open-back lintels supporting concrete floors. Build the blockwork tightly against the lintel's inner vertical face and provide a mortar joint at the top to distribute loading evenly across the inner flange. The structural loads must also be checked.

How much end bearing does a CX130/100 require?

Catnic's published safe working loads use nominal 150mm end bearings at each end. Confirm the selected length and load capacity for your structural opening.
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Catnic Extra Heavy Duty 130mm Cavity Lintel CX130/100 by Catnic

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