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Concrete Blocks

6 Items

  1. 100mm Aerated Blocks
    From£1.99Ex VATFrom£2.39 Inc VAT
  2. 100mm Thermalite Hi-Strength 7.3N
    £3.35Ex VAT£4.02 Inc VAT
  3. 100mm Thermalite Coursing Brick 2.9N
    £0.79Ex VAT£0.95 Inc VAT
  4. Thermalite Trenchblock T&G 3.6N
    £7.09Ex VAT£8.51 Inc VAT
  5. Concrete Block Dense 7N 100 Solid
    £2.09Ex VAT£2.51 Inc VAT
  6. Concrete Block Dense 7N 140 Solid
    £3.09Ex VAT£3.71 Inc VAT

More information about Concrete Blocks

What are concrete blocks used for?

Concrete blocks are a vital building material used in a wide variety of construction applications, and at Selco we’ve got a fantastic range of trade-quality lightweight or dense concrete blocks for you to choose from depending on the needs of your latest project.

Concrete blocks are known by many names - cement blocks, breeze blocks, cinder blocks and more. They’re made from a mixture of cement, sand and gravel, and are usually used in the construction of floors, walls and foundations because of their fantastic durability and high compressive strength. Building bricks made of clay or stone are more susceptible to cracking or breaking when exposed to high pressure than concrete builders' blocks.

What types of concrete blocks do we have available?

Your customer’s needs, budget and the type of project at hand will determine the type of concrete building blocks needed. If you’re looking for sturdy concrete blocks for structural and load bearing needs, our strong, Dense Concrete Blocks are an excellent choice for cavity and solid wall construction, as well as internal load bearing walls. Or, the 100mm Thermalite Hi-Strength 7.3N Block is a lightweight yet exceptionally strong and hard-wearing block for applications where loading conditions need a 7.3N/mm² building block.

Our range of Thermalite concrete blocks offer a great level of thermal insulation and moisture resistance , but if you’re particularly looking for insulating thermal blocks, the 100mm 3.6N Thermalite Shield Block can be used in internal and external walls and foundations, offering supreme thermal performance.

For quicker and easier construction, the tongue and groove interlocking design of the 300mm 3.6N Thermalite T&G Trenchblocks makes fitting the blocks together much simpler and removes the need for mortar to be used on prep-ends.

Get your concrete blocks at exclusive trade prices

You can order your concrete building blocks as well as other building bricks and blocks straight to your job site through our free Click & Deliver service, or you can save time and pick up at your local branch using our Click & Collect service.

FAQs

How much does a concrete block weigh?

The weight of a concrete block depends entirely on its size and density. Concrete blocks can weigh anything between 12kg-45kg.

How many concrete blocks do I need?

First, work out the areas of both the wall you’re building and one of your concrete blocks (you can find the area by multiplying the height by the width). Next, divide the area of the wall by the area of one concrete block to work out the number of blocks you’ll need.

What sizes do concrete blocks come in?

The size of a concrete block can vary greatly depending on its brand and purpose, but the overall size of a standard concrete block is 440mm x 100mm x 215mm in the UK.

Are concrete blocks waterproof?

Concrete blocks and cinder blocks are not waterproof. Some concrete blocks may have varying levels of water resistance, but in general concrete blocks are permeable by water and water vapour so you’ll need to install some waterproofing.

How do I cut concrete blocks?

You can cut your concrete block with a hammer and chisel for smaller jobs, or you can use a circular saw or angle grinder with a masonry/concrete-cutting blade for precise, clean cuts.

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