The Birtley Standard Duty Cavity Lintel 90mm CB125/90/100 is engineered for strength and durability, making it an ideal choice for cavity wall constructions. Built from high-grade mild steel and hot-dip galvanised for superior corrosion resistance, this lintel ensures long-lasting performance even in demanding environments. Its unique design eliminates thermal bridging, enhancing energy efficiency in your building projects. Available in a versatile range of 750mm to 3000mm, it accommodates various opening widths while providing a 150mm minimum end bearing for secure installation. Perfect for external walls, this lintel must be used with a cavity tray and is unsuitable for point loads or concrete floors.
Key Features:
Made from mild steel S275JR for high strength and durability.
Hot-dip galvanized coating provides superior corrosion resistance.
Reduces thermal bridging with factory-fitted insulation.
Suitable for cavity widths of 90-105mm and outer leaf widths of 124-140mm.
Available in lengths from 750mm to 3000mm.
Complies with BS EN845-2:2013+A1:2016 standards.
50% more zinc coating compared to other approved methods, providing unmatched longevity and resilience for your structures.
Choose the Birtley CB125/90/100 Cavity Lintel for a dependable and long-lasting solution for your construction needs.
Birtley
Lintel
Size
750mm
900mm
1050mm
1200mm
1350mm
1500mm
1650mm
1800mm
1950mm
2100mm
2250mm
2400mm
2550mm
2700mm
2850mm
3000mm
{PRODUCT_DESCRIPTION}
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 Standard Duty Cavity Lintel 90mm CB125/90/100 is engineered for strength and durability, making it an ideal choice for cavity wall constructions. Built from high-grade mild steel and hot-dip galvanised for superior corrosion resistance, this lintel ensures long-lasting performance even in demanding environments. Its unique design eliminates thermal bridging, enhancing energy efficiency in your building projects. Available in a versatile range of 750mm to 3000mm, it accommodates various opening widths while providing a 150mm minimum end bearing for secure installation. Perfect for external walls, this lintel must be used with a cavity tray and is unsuitable for point loads or concrete floors.
Key Features:
Made from mild steel S275JR for high strength and durability.
Hot-dip galvanized coating provides superior corrosion resistance.
Reduces thermal bridging with factory-fitted insulation.
Suitable for cavity widths of 90-105mm and outer leaf widths of 124-140mm.
Available in lengths from 750mm to 3000mm.
Complies with BS EN845-2:2013+A1:2016 standards.
50% more zinc coating compared to other approved methods, providing unmatched longevity and resilience for your structures.
Choose the Birtley CB125/90/100 Cavity Lintel for a dependable and long-lasting solution for your construction needs.
Birtley
Lintel
Size
750mm
900mm
1050mm
1200mm
1350mm
1500mm
1650mm
1800mm
1950mm
2100mm
2250mm
2400mm
2550mm
2700mm
2850mm
3000mm
{PRODUCT_DESCRIPTION}
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
The Birtley Standard Duty Cavity Wall Lintel 90mm CB125/90/100 combines strength, durability, and energy efficiency. Made from galvanized mild steel, it reduces thermal bridging and is available in lengths from 750mm to 3000mm. Ideal for cavity wall constructions, it complies with BS EN845-2 standards.
Birtley Cavity Wall Lintel 90mm CB125/90/100 - 750mm
is backordered and will ship as soon as it is back in stock.
📦Product Availability
Extended Lead Time (Available approx. April 30, 2025)
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 Standard Duty Cavity Lintel 90mm CB125/90/100 is engineered for strength and durability, making it an ideal choice for cavity wall constructions. Built from high-grade mild steel and hot-dip galvanised for superior corrosion resistance, this lintel ensures long-lasting performance even in demanding environments. Its unique design eliminates thermal bridging, enhancing energy efficiency in your building projects. Available in a versatile range of 750mm to 3000mm, it accommodates various opening widths while providing a 150mm minimum end bearing for secure installation. Perfect for external walls, this lintel must be used with a cavity tray and is unsuitable for point loads or concrete floors.
Key Features:
Made from mild steel S275JR for high strength and durability.
Hot-dip galvanized coating provides superior corrosion resistance.
Reduces thermal bridging with factory-fitted insulation.
Suitable for cavity widths of 90-105mm and outer leaf widths of 124-140mm.
Available in lengths from 750mm to 3000mm.
Complies with BS EN845-2:2013+A1:2016 standards.
50% more zinc coating compared to other approved methods, providing unmatched longevity and resilience for your structures.
Choose the Birtley CB125/90/100 Cavity Lintel for a dependable and long-lasting solution for your construction needs.
The Birtley Standard Duty Cavity Wall Lintel 90mm CB125/90/100 is crafted from high-quality mild steel S275JR, ensuring exceptional strength and load-bearing capacity. Its post-fabrication hot-dip galvanized coating offers up to 50% more zinc protection than standard coatings, making it highly resistant to corrosion. This lintel is designed to withstand harsh weather conditions, ensuring long-term durability for your construction projects.
This product is galvanized after fabrication, leaving no surface unprotected. This process not only enhances its lifespan but also ensures consistent performance in damp or exposed environments. The lack of a baseplate and factory-fitted insulation further reduces thermal bridging, making it an energy-efficient choice for modern buildings.
Versatile Sizing for Every Project
Available in lengths ranging from 750mm to 3000mm, the Birtley Standard Duty Cavity Wall Lintel 90mm CB125/90/100 is designed to suit a variety of opening widths. Its 150mm minimum end bearing ensures a secure fit, while the cavity width of 90-105mm and outer leaf width of 124-140mm make it compatible with most standard wall constructions.
Energy Efficiency and Thermal Performance
The Birtley lintel is designed to minimize thermal bridging, a common issue in cavity wall constructions. Its factory-fitted expanded polystyrene insulation and lack of a baseplate significantly reduce heat loss, helping your building meet energy efficiency standards. This makes it an excellent choice for projects aiming for BREEAM certification or compliance with modern building regulations.
Easy Installation and Compliance
Installing the Birtley Standard Duty Cavity Wall Lintel is straightforward. It must be fully bedded on bricklaying mortar and used with a cavity tray for external walls. The lintel complies with BS EN845-2:2013+A1:2016 standards, ensuring it meets rigorous safety and performance requirements. However, it is not suitable for point loads or concrete floors, so ensure it’s used in the correct applications.
Why Choose Birtley Lintels?
Birtley Lintels are trusted by builders and architects across the UK for their unmatched quality and performance. With a focus on innovation, durability, and energy efficiency, Birtley continues to lead the industry in providing reliable structural solutions. The Standard Duty Cavity Wall Lintel 90mm CB125/90/100 is a testament to their commitment to excellence.
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.
