Standard Duty – Single Leaf Internal Wall Lintels

Loadbearing Walls

Cavity: 140mm – Internal block wall (plastered) 

Insulated version available.

Features  

Product Attributes:

Brand: Birtley
Generic Ref: SB140
Product Range: Single Leaf Internal Walls
Product Type: Standard Duty Internal Wall Box Lintel - 140mm Block
European Standard/ETA: BS EN845-2:2013+A1:2016
Test Standard: EN846-9:2000/2016
Notified Body: Lucideon Ltd (NB 1289)
Material: Mild Steel S275JR to BS EN10025-2:2004
Coating/Finish/Colour: 65µm Hot Dip Galvanized to BS EN ISO 1461:2009
Thermal Performance: Contact us for information
Insulation: OPTIONAL - Expanded Polystyrene - BREEAM rating A+
Fire Rating: 60 mins (with 2 coat plaster finish)

1. Installation requirement: Bed fully on bricklaying mortar
2. Installation requirement: Must be used with a cavity tray - External walls only
3. Installation requirement: 150mm Minimum end bearing

Sales Qty1
Packaging weight: 0
1. Features: Supergalv coating offers superior life expectancy
2. Features: Post-fabrication galvanizing leaves no surface with inferior paint protection
3. Features: Structural grade steel to EN10025
Option 1: Alternative material options: Ultragalv coating (150µm), Stainless Steel 1.4301 (304)

For a wide selection of Birtley Steel Lintels, click here.
Birtley
Lintel

Standard Duty – Single Leaf Internal Wall Lintels

Loadbearing Walls

Cavity: 140mm – Internal block wall (plastered) 

Insulated version available.

Features  

Product Attributes:

Brand: Birtley
Generic Ref: SB140
Product Range: Single Leaf Internal Walls
Product Type: Standard Duty Internal Wall Box Lintel - 140mm Block
European Standard/ETA: BS EN845-2:2013+A1:2016
Test Standard: EN846-9:2000/2016
Notified Body: Lucideon Ltd (NB 1289)
Material: Mild Steel S275JR to BS EN10025-2:2004
Coating/Finish/Colour: 65µm Hot Dip Galvanized to BS EN ISO 1461:2009
Thermal Performance: Contact us for information
Insulation: OPTIONAL - Expanded Polystyrene - BREEAM rating A+
Fire Rating: 60 mins (with 2 coat plaster finish)

1. Installation requirement: Bed fully on bricklaying mortar
2. Installation requirement: Must be used with a cavity tray - External walls only
3. Installation requirement: 150mm Minimum end bearing

Sales Qty1
Packaging weight: 0
1. Features: Supergalv coating offers superior life expectancy
2. Features: Post-fabrication galvanizing leaves no surface with inferior paint protection
3. Features: Structural grade steel to EN10025
Option 1: Alternative material options: Ultragalv coating (150µm), Stainless Steel 1.4301 (304)

For a wide selection of Birtley Steel Lintels, click here.
Birtley
Lintel
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Birtley SB140 Standard Duty – Single Leaf Internal Wall Lintel

£34.67
The Birtley SB140 is a standard-duty lintel designed for 140mm single-leaf internal walls, offering superior protection and optional insulation.

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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.

Standard Duty – Single Leaf Internal Wall Lintels

Loadbearing Walls

Cavity: 140mm – Internal block wall (plastered) 

Insulated version available.

Features  

  • We are the only lintel manufacturer to hot-dip galvanize after fabrication providing up to 50% more zinc protection than other approved coatings
  • Supergalv coating offers superior life expectancy
  • Post-fabrication galvanizing leaves no surface with inferior paint protection

Product Attributes:

Brand: Birtley
Generic Ref: SB140
Product Range: Single Leaf Internal Walls
Product Type: Standard Duty Internal Wall Box Lintel - 140mm Block
European Standard/ETA: BS EN845-2:2013+A1:2016
Test Standard: EN846-9:2000/2016
Notified Body: Lucideon Ltd (NB 1289)
Material: Mild Steel S275JR to BS EN10025-2:2004
Coating/Finish/Colour: 65µm Hot Dip Galvanized to BS EN ISO 1461:2009
Thermal Performance: Contact us for information
Insulation: OPTIONAL - Expanded Polystyrene - BREEAM rating A+
Fire Rating: 60 mins (with 2 coat plaster finish)

1. Installation requirement: Bed fully on bricklaying mortar
2. Installation requirement: Must be used with a cavity tray - External walls only
3. Installation requirement: 150mm Minimum end bearing

Sales Qty1
Packaging weight: 0
1. Features: Supergalv coating offers superior life expectancy
2. Features: Post-fabrication galvanizing leaves no surface with inferior paint protection
3. Features: Structural grade steel to EN10025
Option 1: Alternative material options: Ultragalv coating (150µm), Stainless Steel 1.4301 (304)

For a wide selection of Birtley Steel Lintels, click here.

Standard Duty Internal Wall Lintel


The Birtley SB140 is a standard-duty lintel designed for single-leaf internal walls with a cavity of 140mm. It is suitable for internal block walls that are plastered.
This lintel is hot-dip galvanized after fabrication, providing up to 50% more zinc protection than other approved coatings. It offers the option for insulation and is rated for 60 minutes of fire resistance with a two-coat plaster finish.

Technical Specifications


- Cavity Width: 140mm - Material: Mild Steel S275JR to BS EN10025-2:2004 - Coating: 65µm Hot Dip Galvanized to BS EN ISO 1461:2009 - Fire Rating: 60 minutes (with 2 coat plaster finish) - Length Options: 750mm to 4800mm

Features


- Supergalv coating offers superior life expectancy. - Post-fabrication galvanizing leaves no surface with inferior paint protection. - Structural grade steel to EN10025. - Optional insulation available.

Installation Requirements


- Must be bedded fully on bricklaying mortar. - Suitable for internal block walls (plastered). - Requires a minimum end bearing of 150mm.

Why Choose Birtley?


Birtley lintels are known for their durability and superior protection against corrosion. Our post-fabrication galvanizing process ensures that every surface is protected, providing a longer lifespan for your 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.