The Birtley Heavy Duty Internal Wall Box Lintel 100mm SB100HD is engineered for superior strength and durability, making it the ideal choice for single-leaf internal walls. Crafted from structural-grade mild steel (S275JR) and finished with a 65µm hot-dip galvanised coating, this lintel offers exceptional corrosion resistance and a long lifespan. Its robust design ensures a 60-minute fire rating when paired with a two-coat plaster finish, providing both safety and reliability.
Supergalv coating offers superior life expectancy
Post-fabrication galvanising leaves no surface with inferior paint protection
Available in span lengths from 750mm to 3600mm.
Made from structural grade steel toEN10025
Birtley
Lintel
Length
750mm
900mm
1050mm
1200mm
1350mm
1500mm
1650mm
1800mm
1950mm
2100mm
2250mm
2400mm
2550mm
2700mm
2850mm
3000mm
3300mm
3600mm
{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 Heavy Duty Internal Wall Box Lintel 100mm SB100HD is engineered for superior strength and durability, making it the ideal choice for single-leaf internal walls. Crafted from structural-grade mild steel (S275JR) and finished with a 65µm hot-dip galvanised coating, this lintel offers exceptional corrosion resistance and a long lifespan. Its robust design ensures a 60-minute fire rating when paired with a two-coat plaster finish, providing both safety and reliability.
Supergalv coating offers superior life expectancy
Post-fabrication galvanising leaves no surface with inferior paint protection
Available in span lengths from 750mm to 3600mm.
Made from structural grade steel toEN10025
Birtley
Lintel
Length
750mm
900mm
1050mm
1200mm
1350mm
1500mm
1650mm
1800mm
1950mm
2100mm
2250mm
2400mm
2550mm
2700mm
2850mm
3000mm
3300mm
3600mm
{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
Birtley Heavy Duty Internal Wall Box Lintel 100mm SB100HD
£44.98
£130.34
Unit price /
Unavailable
The Birtley Heavy Duty Internal Wall Box Lintel 100mm SB100HD is a high-strength, galvanized steel lintel designed for single-leaf internal walls. With a 60-minute fire rating and optional insulation, it’s a reliable choice for modern construction projects.
Birtley Heavy Duty Internal Wall Box Lintel 100mm SB100HD - 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 Heavy Duty Internal Wall Box Lintel 100mm SB100HD is engineered for superior strength and durability, making it the ideal choice for single-leaf internal walls. Crafted from structural-grade mild steel (S275JR) and finished with a 65µm hot-dip galvanised coating, this lintel offers exceptional corrosion resistance and a long lifespan. Its robust design ensures a 60-minute fire rating when paired with a two-coat plaster finish, providing both safety and reliability.
Supergalv coating offers superior life expectancy
Post-fabrication galvanising leaves no surface with inferior paint protection
Available in span lengths from 750mm to 3600mm.
Made from structural grade steel toEN10025
Birtley Heavy Duty Internal Wall Box Lintel 100mm SB100HD
The Birtley SB100HD lintel is constructed from high-quality mild steel (S275JR) to BS EN10025-2:2004, ensuring unmatched strength and durability. Its 65µm hot-dip galvanized coating, compliant with BS EN ISO 1461:2009, provides superior corrosion resistance, making it suitable for long-term use in demanding environments.
Post-fabrication galvanizing ensures every surface is fully protected, leaving no weak points. This meticulous process enhances the lintel’s lifespan, making it a cost-effective choice for builders and contractors.
Safety and Compliance: Fire Rating and Standards
The Birtley SB100HD lintel boasts a 60-minute fire rating when used with a two-coat plaster finish, ensuring compliance with safety regulations.
Versatile and Efficient: Optional Insulation
For projects requiring enhanced thermal performance, the Birtley SB100HD lintel is available with optional expanded polystyrene insulation. This addition improves energy efficiency and contributes to a BREEAM rating of A+, making it an eco-friendly choice for sustainable construction.
Easy Installation: Designed for Builders
The Birtley SB100HD lintel is designed for straightforward installation. It must be fully bedded on bricklaying mortar and requires a 150mm minimum end bearing. For external walls, a cavity tray is essential to ensure optimal performance and longevity.
Why Choose Birtley Lintels?
Birtley Lintels are trusted by professionals across the UK for their exceptional quality and reliability. The SB100HD model combines robust materials, advanced coatings, and optional insulation to deliver a product that meets the highest standards of safety, durability, and efficiency.
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.
