Catnic Thermally Broken Cavity Wall Lintel TS90/100
Catnic Thermally Broken Cavity Wall Lintel TS90/100 - 750mm is backordered and will ship as soon as it is back in stock.
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The Catnic Thermally Broken Cavity Wall Lintel TS90/100 sets a new standard in cavity wall construction with its innovative thermal break, designed to enhance energy efficiency. Built from robust steel, this lintel provides reliable support for masonry, timber floors, and roof loads typical in most buildings, making it ideal for fair-faced inner leaf masonry applications. The open-back profile simplifies the construction process, allowing continuous masonry build-up across both inner and outer leaves. Available in standard, heavy, and extra heavy duty, it accommodates cavity widths from 90mm to 205mm. This fully insulated lintel features a complete thermal break, an integral plaster key, and Catnic’s signature black powder coating for a long-lasting, professional finish.
Key Features
- Thermal Break: Minimises heat loss, boosting energy efficiency
- Versatile Load Support: Suitable for masonry, timber floor, and roof loads
- Open Back Profile: Allows uninterrupted masonry build-up on both leaves
- Duty Options: Standard, heavy, and extra heavy duty for 90-205mm cavities
- Premium Finish: Fully insulated with an integral plaster key and durable black powder coating

Description
Description
The Catnic Thermally Broken Cavity Wall Lintel TS90/100 sets a new standard in cavity wall construction with its innovative thermal break, designed to enhance energy efficiency. Built from robust steel, this lintel provides reliable support for masonry, timber floors, and roof loads typical in most buildings, making it ideal for fair-faced inner leaf masonry applications. The open-back profile simplifies the construction process, allowing continuous masonry build-up across both inner and outer leaves. Available in standard, heavy, and extra heavy duty, it accommodates cavity widths from 90mm to 205mm. This fully insulated lintel features a complete thermal break, an integral plaster key, and Catnic’s signature black powder coating for a long-lasting, professional finish.
Key Features
- Thermal Break: Minimises heat loss, boosting energy efficiency
- Versatile Load Support: Suitable for masonry, timber floor, and roof loads
- Open Back Profile: Allows uninterrupted masonry build-up on both leaves
- Duty Options: Standard, heavy, and extra heavy duty for 90-205mm cavities
- Premium Finish: Fully insulated with an integral plaster key and durable black powder coating
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The Catnic Standard Duty Thermally Broken Cavity Wall Lintel TS90/100

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Why Choose Catnic?
Our customers tell it better than we do!
Excellent Delivery Service
Order arrived early in morning, delivery staff were excellent and able to place order as close as possible to where I required it. excellent communication through out delivery and after delivery.
Great Experience
Great experience Really pleased with the way my order was dealt with and delivery arrived as advised.
Good product and service
Good product, reasonable price, great service and good customer follow-up. Would recommend and use again.
Great Company
Great company, great product. Delivery was very speedy and items was delivered professionally by a very helpful driver. Would highly recommend.
Great quality wood and fast delivery
Great quality wood and fast delivery The company reached out to make sure that everything was good and the delivery went fine
Excellent service from a great company
Ordered 2T of midnight blue slate chipping (2 pallets of 50 bags each) Very nice product at a great price. Contacted quickly after order to arrange a suitable delivery date. Delivery was as arranged. Customer service is excellent including follow up call to ensure everything went well. All in all I would highly recommend Armstrong Cheshire.
Great Customer Relations
Due to a mistake in communication ( mostly my mistake) the first delivery of bulk aggregate went to an address I used to live at. After asking to have a replacement delivery to the correct address Armstrong Cheshire re-scheduled the delivery within 3 days and with fantastic customer relations. I cannot recommend this company enough.
Ultra Fast Delivery
Ultra fast delivery, technically superlative company, their products are light years ahead of all others. Unbelievable prices. I have been in construction for nearly 70 years now and am still working every day. This company is why I keep getting up in a morning. Thank you dear sirs/ Madam for making life easier
Steel Lintel
Easy to pick product online, said 10 days delivery but got the product in 4 days, excellent service and prices