The Birtley TF90HD Heavy Cavity Timber Frame Lintel excels in providing robust support for 90–105mm cavity walls, with a Supergalv coating offering up to 50% more zinc protection than other coatings. Engineered for heavy-duty timber frame applications, this Birtley Lintel ensures long-lasting performance, superior corrosion resistance, and compliance with stringent British and European standards. Its optional expanded polystyrene insulation enhances thermal performance, making it an efficient and sustainable choice for modern building projects.
Key Features
Built for heavy-duty timber frame applications
Hot-dip galvanised for superior corrosion resistance
Designed for 90–105mm cavities with optional insulation
Fire-rated for up to 60 minutes with plaster finish
Delivery is free to Mainland England and Wales. Deliveries are chargable to Scotland.
Once the order is placed, our courier will call you within 3 working days to arrange a delivery date. If you do not hear from the courier within 3 days, please get in touch with us. The majority of deliveries are made within 7 days, occasionally a little longer during peak periods.
Deliveries are made between 08:00 and 18:00 on the day, we request the driver calls you one hour before with an advised time.
Delivery is made via a kerbside tail lift lorry, we cannot deliver to sloping ground as the tail lift must be able to lay flat.
The road must be wide enough for a lorry to fit down and free from obstruction, if there are any access restrictions, please contact us.
Deliveries must be signed for, please report any damages to us within 24 hours.
We offer all bricks with a tail lift offloading service, Please familiarise yourself with the information below.
Crane offloading is available as a premium service for some bricks.
FAQ
All of our C16 and C24 graded timber is regularised
Regularised timber is timber that has been processed to have a uniform shape and size. This means that the wood has been sawn and planed to remove any irregularities and ensure that each piece of wood has consistent dimensions. Regularised timber is often used in construction, particularly in the framing of buildings, as it is easier to work with and can be more efficiently installed than irregularly shaped timber.
We have one of the largest ranges of timber lengths, dimensions and grades available to buy online.
The variation you require will determine the exact lead time and delivery method.
Most orders arrive within 3-4 days, the maximum is 7 days. Please get in touch before you order if you need a specifc delivery date.
Delivery charges vary by postcode. To find out the delivery charge, add the item(s) you require to your basket and select CALCULATE SHIPPING at the bottom of the page.
Some orders are delivered on our own vehicles based in Leicestershire and Cheshire. We also use carriers including Yodel and Tuffnells. For some sizes and locations we use regional distributors.
If you'd prefer crane offloading rather than tail lift vehicle offloading for your brick order then this service is available for the majority of bricks that we sell. Charges are shown at checkout.
For deliveries of less than 6 packs then Taillift offloading is normally a more cost effective option
Downloadable information can be found here:
Armstrong Cheshire supply the full range of Catnic Lintels. If you don't see the lintel you need on our website, choose from the Catnic Lintel Selector Brochure and give us a call 01625 322269
Downloadable information can be found here:
The Birtley TF90HD Heavy Cavity Timber Frame Lintel excels in providing robust support for 90–105mm cavity walls, with a Supergalv coating offering up to 50% more zinc protection than other coatings. Engineered for heavy-duty timber frame applications, this Birtley Lintel ensures long-lasting performance, superior corrosion resistance, and compliance with stringent British and European standards. Its optional expanded polystyrene insulation enhances thermal performance, making it an efficient and sustainable choice for modern building projects.
Key Features
Built for heavy-duty timber frame applications
Hot-dip galvanised for superior corrosion resistance
Designed for 90–105mm cavities with optional insulation
Fire-rated for up to 60 minutes with plaster finish
Delivery is free to Mainland England and Wales. Deliveries are chargable to Scotland.
Once the order is placed, our courier will call you within 3 working days to arrange a delivery date. If you do not hear from the courier within 3 days, please get in touch with us. The majority of deliveries are made within 7 days, occasionally a little longer during peak periods.
Deliveries are made between 08:00 and 18:00 on the day, we request the driver calls you one hour before with an advised time.
Delivery is made via a kerbside tail lift lorry, we cannot deliver to sloping ground as the tail lift must be able to lay flat.
The road must be wide enough for a lorry to fit down and free from obstruction, if there are any access restrictions, please contact us.
Deliveries must be signed for, please report any damages to us within 24 hours.
We offer all bricks with a tail lift offloading service, Please familiarise yourself with the information below.
Crane offloading is available as a premium service for some bricks.
All of our C16 and C24 graded timber is regularised
Regularised timber is timber that has been processed to have a uniform shape and size. This means that the wood has been sawn and planed to remove any irregularities and ensure that each piece of wood has consistent dimensions. Regularised timber is often used in construction, particularly in the framing of buildings, as it is easier to work with and can be more efficiently installed than irregularly shaped timber.
We have one of the largest ranges of timber lengths, dimensions and grades available to buy online. The variation you require will determine the exact lead time and delivery method.
Most orders arrive within 3-4 days, the maximum is 7 days.
Please get in touch before you order if you need a specific delivery date.
Delivery charges vary by postcode. To find out the delivery charge, add the item(s) you require to your basket and select CALCULATE SHIPPING at the bottom of the page. Some orders are delivered on our vehicles based in Leicestershire and Cheshire. We also use carriers including Yodel and Tuffnells. For some sizes and locations, we use regional distributors.
If you'd prefer crane offloading rather than tail lift vehicle offloading for your brick order then this service is available for the majority of bricks that we sell. Charges are shown at checkout.
For deliveries of less than 6 packs then Taillift offloading is normally a more cost effective option
Downloadable information can be found here:
Armstrong Cheshire supply the full range of Catnic Lintels. If you don't see the lintel you need on our website, choose from the Catnic Lintel Selector Brochure and give us a call 01625 322269
Birtley TF90HD Heavy Cavity Timber Frame Lintel - 750mm
is backordered and will ship as soon as it is back in stock.
Couldn't load collection availability
Delivery charges will vary depending on your location.
To find out delivery cost to your postcode, add the products your require to your basket and then review your basket, entering the delivery postcode
We look to dispatch all products same-day where possible, we use a close network of couriers we have worked alongside for a number of years and will share any and all shipping updates with you directly.
The Birtley TF90HD Heavy Cavity Timber Frame Lintel excels in providing robust support for 90–105mm cavity walls, with a Supergalv coating offering up to 50% more zinc protection than other coatings. Engineered for heavy-duty timber frame applications, this Birtley Lintel ensures long-lasting performance, superior corrosion resistance, and compliance with stringent British and European standards. Its optional expanded polystyrene insulation enhances thermal performance, making it an efficient and sustainable choice for modern building projects.
Key Features
Built for heavy-duty timber frame applications
Hot-dip galvanised for superior corrosion resistance
Designed for 90–105mm cavities with optional insulation
Fire-rated for up to 60 minutes with plaster finish
The TF90HD Lintel is constructed with structural-grade mild steel S275JR and finished with a 65µm hot-dip galvanised coating. This robust construction guarantees exceptional durability, even in demanding environments. Post-fabrication galvanisation ensures uniform protection, leaving no surface exposed.
Specifically designed for heavy-duty use, this lintel offers reliable support for timber frame constructions. Its advanced engineering meets BS EN ISO 1461 and EN846-9 standards, ensuring compliance and superior performance under load.
Thermal Efficiency
Optional expanded polystyrene insulation improves thermal performance, reducing heat loss through cavity walls. With a BREEAM A+ rating, the TF90HD supports energy-efficient and sustainable construction projects.
Fire Safety Certified
The TF90HD Lintel is fire-rated for up to 60 minutes when used with a two-coat plaster system. This makes it a safe and dependable choice for residential and commercial projects where fire resistance is crucial.
Easy Installation and Flexibility
Designed for straightforward installation, the lintel requires a minimum end bearing of 150mm and supports lintel clips at less than 600mm intervals. With alternative material options like Ultragalv or stainless steel and custom outer leaf features, the TF90HD offers flexibility for diverse building needs.
Built for Heavy-Duty Performance
The Birtley TF90HD combines strength, efficiency, and versatility, making it the ideal lintel for demanding timber frame construction projects.
Have a question?
If you have any questions about our products or would like to learn more about our shipping options please feel free to contact one of our team today.
