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    Blocks

    Concrete Blocks for All Building Applications

    We supply a wide selection of concrete blocks for structural and non-structural use in both residential and commercial construction. Whether you're building foundations, walls, extensions, or internal partitions, you'll find reliable, trade-quality options in our range. Choose from dense concrete blocks for high strength, lightweight aerated blocks for thermal efficiency and easy handling, or coursing blocks for infill and detailing work. All products comply with UK building regulations and are suitable for above and below-ground use.

    We stock trusted names including Mannok and Thermalite, available in various sizes and pack quantities to suit your project needs. Need sand, cement, or aggregates to complete the job? Visit our Cement & Aggregates section for everything you need to get started.

    Local delivery available across our service areas — or collect in-store.

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    Picture of Concrete Block 7.3n Dense Std Hollow 215mm

    Concrete Block 7.3n Dense Std Hollow 215mm

    Free delivery over £250 (Exceptions Apply)
    Further delivery information
    30 Day Return Policy
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    £4.58
    Picture of Concrete Block 7.3n Dense Std Solid 100mm

    Concrete Block 7.3n Dense Std Solid 100mm

    Free delivery over £250 (Exceptions Apply)
    Further delivery information
    30 Day Return Policy
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    £2.24
    Picture of Concrete Block 7.3n Dense Std Solid 140mm

    Concrete Block 7.3n Dense Std Solid 140mm

    Free delivery over £250 (Exceptions Apply)
    Further delivery information
    30 Day Return Policy
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    £3.18
    Picture of Fibolite 3.6n Lightweight Solid Block 100mm

    Fibolite 3.6n Lightweight Solid Block 100mm

    Free delivery over £250 (Exceptions Apply)
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    30 Day Return Policy
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    £2.97
    Picture of Mannok Aircrete Coursing Brick 5N 100mm

    Mannok Aircrete Coursing Brick 5N 100mm

    Free delivery over £250 (Exceptions Apply)
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    30 Day Return Policy
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    £1.79
    Picture of Mannok Aircrete Std Block 3.6N 100mm (72 per pack)

    Mannok Aircrete Std Block 3.6N 100mm (72 per pack)

    Free delivery over £250 (Exceptions Apply)
    Further delivery information
    30 Day Return Policy
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    £3.26

    Frequently Asked Questions – Concrete & Building Blocks

    What’s the difference between dense and lightweight blocks?
    Dense blocks are heavier and offer greater compressive strength, making them ideal for structural work and load-bearing walls. Lightweight or aerated blocks are easier to handle and offer better thermal insulation, making them suitable for partitions and internal walls.

    Can these blocks be used below ground or for foundations?
    Yes, certain types of dense concrete blocks are rated for below-ground use and are suitable for footings and foundation walls. Always check the product specification or ask us for advice based on your project.

    Do your blocks meet UK building regulations?
    Yes — all our concrete blocks meet relevant British Standards and building regulation requirements for structural use, thermal performance, and fire resistance.

    Are your blocks sold individually or in packs?
    Most blocks are available in full packs, but selected lines can also be purchased individually. Product pages will show available options, and you can always contact us for large quantity pricing or delivery queries.

    Do you offer delivery for bulk block orders?
    Yes — we provide local delivery across our service area for block packs and bulk orders. Delivery options and lead times are shown at checkout, or feel free to contact our team for assistance.