Catnic

Catnic CG50/100 Standard Duty 50mm Cavity Lintel

£62.00
Cavity Lintel

£51.66 (ex VAT)

VAT included. Shipping calculated at checkout.
4.5
Product Availability
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The Catnic CG50/100 Standard Duty 50mm Cavity Lintel is designed for masonry cavity walls with a 50–65mm 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 continuous insulation, an integral plaster key and built-in DPC provide additional construction benefits. We supply ten lengths from 900mm to 3600mm, with safe working loads ranging from 15kN to 26kN.

Catnic CG50/100 key features

50–65mm cavity width

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

Standard duty loading

Suitable for specified masonry, timber floor and roof loads within Catnic's published loading conditions.

Open-back profile

Allows masonry to be built up continuously on the inner and outer leaves during construction.

Built-in DPC

Incorporates a damp-proof course. Additional DPC may be required in some situations, depending on installation and exposure conditions.

Integral insulation and plaster key

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

Duplex corrosion protection

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

Dimensions and specification

Catnic CG50/100 technical specifications
Manufacturer Catnic
Product code CG50/100
Lintel type Standard duty cavity wall lintel
Cavity width 50–65mm
Inner leaf 100–115mm
Outer leaf 100–102mm
Lengths available 900–3600mm, with ten sizes available
Nominal height 136–222mm, depending on length
Nominal end bearings 150mm at each end
Safe working load 15–26kN, depending on length
Built-in DPC Yes. Additional DPC may be required in some situations.
Plaster key Integral
Insulation Continuous insulation
Finish Galvanised steel with black powder coating

Catnic CG50/100 sizes and safe working loads

The safe working load, height and weight of the CG50/100 depend on the selected length. The table below covers the ten sizes we supply.

CG50/100 length, safe working load, nominal weight and height
Length SWL Weight Height
900mm 15kN 5.49kg 136mm
1200mm 15kN 7.32kg 136mm
1500mm 15kN 9.06kg 136mm
1800mm 18kN 13.99kg 136mm
2100mm 20kN 17.08kg 156mm
2400mm 22kN 21.24kg 180mm
2700mm 26kN 27.28kg 220mm
3000mm 26kN 37.71kg 222mm
3300mm 26kN 41.45kg 222mm
3600mm 26kN 45.18kg 222mm

Where to use a Catnic CG50/100 lintel

The CG50/100 is designed for openings in standard duty cavity wall construction with a 50–65mm cavity. It can support specified masonry, timber floor and roof loads, including triangulated masonry loading, where the selected lintel's capacity is sufficient.

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

Choosing the correct lintel length

Catnic's loading figures are based on nominal 150mm end bearings at each end. The required lintel length is therefore normally determined by adding 300mm to the clear structural opening width.

For example, a 1200mm structural opening would normally require a 1500mm lintel, allowing 150mm bearing on each side. Check the safe working load for your chosen length before ordering.

Installation considerations

Check the cavity width, masonry leaf dimensions and supporting wall construction before installation. Follow Catnic's current installation guidance and the project structural design, including any requirements for temporary support and additional damp-proofing.

For wider cavities, compare our Catnic CG90/100 Standard Duty Cavity Lintel, designed for 90–105mm cavities.

Browse our cavity lintels and Catnic lintels for alternative sizes and loading requirements.

Technical downloads

Frequently asked questions

What cavity width is the Catnic CG50/100 designed for?

The CG50/100 is designed for 50–65mm cavities, with a 100–115mm inner masonry leaf and a 100–102mm outer leaf.

What lengths of Catnic CG50/100 are available?

We supply ten lengths from 900mm to 3600mm. Choose the size you need from the options above.

What safe working load can the CG50/100 support?

The safe working load depends on length, ranging from 15kN for 900–1500mm lintels to 26kN for 2700–3600mm lintels. The full ratings are shown in the table above.

Does the Catnic CG50/100 have a built-in DPC?

Yes. The CG50/100 incorporates a built-in damp-proof course. Additional DPC may be required in some situations, depending on the installation and exposure conditions.

Does the CG50/100 have an integral plaster key?

Yes. The CG50/100 incorporates an integral plaster key to assist plaster finishing.

Can the CG50/100 support timber floor and roof loads?

Yes, where the specified loading conditions are satisfied. The selected lintel must have sufficient capacity for the actual structural loads and opening.

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Customer Reviews

Overall rating: 4.5 / 5 from 16 reviews.

Love the lintel.. delivery leaves room for improvement.. Expected an email , or tracking update to say goods had been shipped, that didn't happen..however van turned up unexpectedly . Luckily have guys on site who took delivery..

Catnic Standard Duty 50mm Cavity Lintel CG50/100

Great price and service

Catnic CG50/100 | 50mm Standard Duty Cavity Wall Lintel

Store owner replied: Hi Jas, Thank you for leaving us a Five Star Review on our Website. It helps our Community and is appreciated. I am delighted to hear you are happy with your Catnic CG50 100 Cavity Lintel. We hope you visit us again, and please do not hesitate to contact me if we can help with anything else. Kind regards Neil Thompson Sales & Operations Manager Wade Building Supplies

Excellent helpful customer service not used product yet as waiting for go ahead from planning

Catnic CG50/100 | 50mm Standard Duty Cavity Wall Lintel

Store owner replied: Hi Carol Thank you for leaving us a review on our Website. It helps our Community and is appreciated. I am delighted to hear you are happy with your Catnic CG50 Cavity Wall Lintel and our Customer Service Team. We hope you visit us again, and please do not hesitate to contact us if we can help with anything else. Kind regards Neil Thompson Sales & Operations Manager Wade Building Supplies

Great price fast delivery quality product very pleased

Catnic CG50/100 | 50mm Standard Duty Cavity Wall Lintel

Store owner replied: Hi Andrew Thank you for leaving us a Five Star Service Review. It helps our Community and is appreciated. I am delighted to hear you are happy with your Catnic CG50/100, our Competitive Prices and Fast Delivery. We hope you revisit us for your Lintels, and please do not hesitate to contact us if we can help with anything else. Kind regards Neil Thompson Sales & Operations Manager Wade Building Supplies

Good price and everything went smoothly.

Catnic CG50/100 | 50mm Standard Duty Cavity Wall Lintel

Store owner replied: Hi Nachi, Thank you for taking the time to leave us a Five Star Review. Your review is valuable to our Community and is appreciated. I am delighted you are happy with your Catnic CG50/100 Cavity Wall Lintel, and your order went Smoothly. If we can help with anything in the future, please do not hesitate to revisit our Website or contact us if we can help with anything else. Kind regards Neil Thompson Sales & Operations Manager Wade Building Supplies

Very helpful people to deal with. Have used twice and will use again when in need.

Catnic CG50/100 | 50mm Standard Duty Cavity Wall Lintel

Store owner replied: Hi Roger, Thank you for your review. It helps our Community and is appreciated. I am delighted to hear the Wade Building Supplies Team met your expectations. Please do not hesitate to contact us again if we can help with anything else. Kind regards Neil Thompson Sales & Operations Manager Wade Building Supplies

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Catnic 50mm Cavity Lintel CG50/100 by Catnic

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