Wienerberger Red Class B Engineering Solid Brick – Pack of 400
The Wienerberger Red Class B Engineering Solid Brick is designed for structural and performance-driven applications where durability and strength are essential. Unlike facing bricks, engineering bricks prioritise technical performance over aesthetics, making them ideal for groundworks, retaining walls, sewers, and damp-proof courses.
This brick offers a strong compressive strength of ? 75 N/mm² and low water absorption of ? 7%, ensuring reliability in demanding conditions. Its red colour provides a more traditional appearance, while its frost resistance (F2 rating) makes it suitable for external and below-ground applications.
Key Specifications
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Size:215mm × 102.5mm × 65mm
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Colour:Red
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Texture:Smooth, Solid Engineering Brick
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Water Absorption:? 7%
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Durability:F2
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Compressive Strength:? 75 N/mm²
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Pack Quantity:400
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Type:Class B Engineering Brick
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Active Soluble Salts:S2
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Standards Compliance:BS EN 771-1
Description & Usage Notes
Manufactured for performance, this Class B engineering brick provides excellent strength and water resistance. It is suitable for structural uses such as load-bearing walls, manholes, retaining walls, and damp-proof courses.
While it can be used above ground, its appearance may vary as aesthetics are not its main purpose. If visual finish is critical, a facing brick should be considered.
For long-term durability, install with appropriate detailing: use suitable mortar, ensure proper drainage, and allow for expansion and movement where required. Always follow best practice for cavity wall or structural applications.
FAQs
What makes this a Class B engineering brick?
Class B engineering bricks are defined by compressive strength of ? 75 N/mm² and water absorption of ? 7%. They are robust and reliable for most structural uses.
Can Class B engineering bricks be used underground?
Yes — their durability and low absorption make them suitable for below-ground use, including foundations, manholes, and retaining structures.
Do these bricks have a consistent appearance?
Not always. Engineering bricks are specified for performance, so colour and surface finish may vary. For decorative work, facing bricks are better suited.
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