Catnic CN71A Steel Box Lintel For External Solid Walls is a standard duty galvanised steel lintel for outer leaves measuring 200–215mm. Designed for solid wall construction, it carries loads of up to 29kN and spans up to 2700mm with 150mm end bearings. The lintel offers strong support for brick and block formats and resists corrosion over time. Each unit weighs between 8,630g and 25,890g depending on length, with a consistent nominal height of 143mm.

Key Features

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Catnic

Catnic CN71A Steel Box Lintel For External Solid Walls

£81.00
Steel lintel for 200–215mm solid walls. Standard duty load-bearing. Galvanised for rust resistance. Spans up to 2700mm.

Catnic CN71A Steel Box Lintel For External Solid Walls - 900mm is backordered and will ship as soon as it is back in stock.

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Catnic CN71A Steel Box Lintel For External Solid Walls is a standard duty galvanised steel lintel for outer leaves measuring 200–215mm. Designed for solid wall construction, it carries loads of up to 29kN and spans up to 2700mm with 150mm end bearings. The lintel offers strong support for brick and block formats and resists corrosion over time. Each unit weighs between 8,630g and 25,890g depending on length, with a consistent nominal height of 143mm.

Key Features

  • Steel lintel suitable for external solid walls
  • Outer leaf compatibility: 200–215mm
  • Load-bearing capacity up to 29kN (standard duty)
  • Lengths from 900mm to 2700mm in 150mm steps
  • Manufacturer: Catnic
  • Weight range: approx. 8.63kg to 25.89kg
  • Nominal lintel height: 143mm across all sizes
  • Datasheet

Description

Catnic CN71A Steel Box Lintel For External Solid Walls is a standard duty galvanised steel lintel for outer leaves measuring 200–215mm. Designed for solid wall construction, it carries loads of up to 29kN and spans up to 2700mm with 150mm end bearings. The lintel offers strong support for brick and block formats and resists corrosion over time. Each unit weighs between 8,630g and 25,890g depending on length, with a consistent nominal height of 143mm.

Key Features

  • Steel lintel suitable for external solid walls
  • Outer leaf compatibility: 200–215mm
  • Load-bearing capacity up to 29kN (standard duty)
  • Lengths from 900mm to 2700mm in 150mm steps
  • Manufacturer: Catnic
  • Weight range: approx. 8.63kg to 25.89kg
  • Nominal lintel height: 143mm across all sizes
  • Datasheet

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Engineered for Solid Wall Builds

The Catnic CN71A lintel is tailored for external solid walls where cavity construction is not required. Its robust box section delivers consistent structural support for 200–215mm brickwork.
This makes the lintel ideal for applications such as boundary walls, standalone brickwork, or solid wall housing structures across residential or light commercial use.

Standard Duty Load Support

With a maximum safe working load (SWL) of up to 29kN, the CN71A meets the needs of typical solid wall load-bearing demands. The design ensures compliance with building regulations where standard duty performance is sufficient.

Galvanised Steel Protection

Manufactured from galvanised steel, this lintel resists rust and wear, ensuring it performs long-term under exposure to external elements.

Size Range for Build Flexibility

Available in 150mm increments from 900mm to 2700mm, the CN71A allows builders to match wall opening requirements precisely, reducing unnecessary cutting or compromise.

Accurate Installation Advice

When installing, ensure a 150mm bearing at both ends and maintain alignment with the brickwork for full load transfer. No inner leaf is required due to its solid wall application.

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Catnic CN71A Steel Box Lintel For External Solid Walls - Armstrong Cheshire
Catnic

Catnic CN71A Steel Box Lintel For External Solid Walls

From £81.00

Catnic CN71A Steel Box Lintel For External Solid Walls is a standard duty galvanised steel lintel for outer leaves measuring 200–215mm. Designed for solid wall construction, it carries loads of up to 29kN and spans up to 2700mm with 150mm end bearings. The lintel offers strong support for brick and block formats and resists corrosion over time. Each unit weighs between 8,630g and 25,890g depending on length, with a consistent nominal height of 143mm.

Key Features

Length

  • 900mm
  • 1050mm
  • 1200mm
  • 1350mm
  • 1500mm
  • 1650mm
  • 1800mm
  • 1950mm
  • 2100mm
  • 2250mm
  • 2400mm
  • 2550mm
  • 2700mm
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