B4L Blocks
Standard Aerated 3.6N Concrete Block 440mm x 215mm - All Sizes
Standard Aerated 3.6N Concrete Block 440mm x 215mm - All Sizes
SKU:302/001
Est Delivery between 6th Feb and
12th Feb.

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How much will I need?
We recommend adding 10% of additional product to the calculation to account for errors, damages, and obstacles in your project
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Product Information
Standard Aerated Blocks are manufactured in 440mm x 215mm and are available in thicknesses from 75mm to 215mm. All Blocks are BBA Certified, are fire resistant (100mm walls, up to 4 hours, 2 hours if load bearing) and have been classified 0 surface spread of flame and non-combustible to Class A1. It can be used below a damp proofing course, as infill for a beam and block flooring system, and in above the ground applications such as partitions, foundations and external and internal leaf of cavity walls.
Benefits:
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Water resistant
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Frost resistant
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Strong and durable
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Combines thermal and acoustic properties
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Has lightweight properties
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Compressive strength of 3.6N per square millimetre
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Conforms to BBA certification
Browse Other Concrete Blocks:
Standard Aerated 7.3N Concrete Block: A versatile concrete block suitable for various construction projects.
Dense Concrete Block 7.3N: A durable and sturdy concrete block for structural applications.
Medium Dense Concrete Block 7.3N: A concrete block with medium density, ideal for walls and partitions.
Hollow Dense Concrete Block 7.3N: A hollow concrete block used for construction with insulation requirements.
Frequently Asked Questions
Are these blocks fire-resistant?
Yes, these blocks are fire-resistant. With 100mm walls, they offer up to 4 hours of fire resistance. If used as load-bearing walls, they provide up to 2 hours of fire resistance.
What is the surface spread of flame classification for these blocks?
The Standard Aerated Blocks have been classified as 0 surface spread of flame, ensuring a high level of fire safety.
Can these blocks be used below the damp proofing course?
Yes, these blocks are suitable for use below the damp proofing course in construction projects.
What applications are these blocks suitable for?
These blocks can be used as infill for a beam and block flooring system, in partitions, foundations, and in both the external and internal leaf of cavity walls.
Are these blocks water and frost resistant?
Yes, these blocks are water resistant, making them suitable for various applications. They also exhibit frost resistance, ensuring durability in colder climates.
What is the compressive strength of these blocks?
The Standard Aerated Blocks have a compressive strength of 3.6N per square millimeter, providing a sturdy and reliable structure.
Do these blocks come with BBA certification?
Yes, these blocks are BBA certified, ensuring their compliance with industry standards and regulations.
Technical Specifications
Bba approved | Yes |
Brand | Build4less |
Compressive strength | 3.60 N |
Density | 600 kg/m3 |
Length | 440mm |
Thermal conductivity | 0.15 W/mK |
Thickness | 75mm,100mm,140mm,215mm |
Width | 215mm |
Delivery Information
Est Delivery between 6th Feb and
12th Feb.


Delivery will always take place on a weekday (Mon - Fri).
An exact delivery charge will be calculated at checkout based on your order.