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Blocks

Blocks are a very similar building product to bricks but are bigger in size, lightweight and ideal for multiple uses such as foundation blocks for separating walls. Usually grey in colour, blocks can be painted, or plastered and painted to suit the overall look of the project where they are visible.

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  • Concrete Block Airtec Foundation Block 7.0N 300 x 275 x 140mm Concrete Block Airtec Foundation Block 7.0N 300 x 275 x 140mm

    Concrete Block Airtec Foundation Block 7.0N 300 x 275 x 140mm

    These 7N concrete blocks are a high-density product that is manufactured by compressing the concrete and fine sands together, which makes them extremely durable. It can be used with a variety of load-bearing applications in your home or business; such as...
  • Tarmac Concrete Block Topcrete Hollow Block 7.3N 440 x 140 x 215mm Tarmac Concrete Block Topcrete Hollow Block 7.3N 440 x 140 x 215mm

    Tarmac Concrete Block Topcrete Hollow Block 7.3N 440 x 140 x 215mm

    £2.01 - £2.56 (Ex VAT)
    £2.41 - £3.07 (Inc VAT)
    The Topcrete Hollow Standard Board is 215 x 440 x 215mm 7.3n. The block is dense and robust, and offers acoustic properties that are ideal for use in most types of property. Ideally used in walls and floors, both above and below ground. Suitable for...
    £2.01 - £2.56 (Ex VAT)
    £2.41 - £3.07 (Inc VAT)
  • Tarmac Concrete Block Hemelite Standard Solid Block 3.6N 440 x 100 x 215mm Tarmac Concrete Block Hemelite Standard Solid Block 3.6N 440 x 100 x 215mm

    Tarmac Concrete Block Hemelite Standard Solid Block 3.6N 440 x 100 x 215mm

    £1.46 - £1.52 (Ex VAT)
    £1.75 - £1.82 (Inc VAT)
    Lightweight aggregate block suited to a number of loadbearing applications. For general use in walls above and below ground and in beam and block floors. Proven high level of technical performance. Easy to handle, high strength to weight ratio, lower...
    £1.46 - £1.52 (Ex VAT)
    £1.75 - £1.82 (Inc VAT)
  • Tarmac Concrete Block Topcrete Standard Solid Block 7.3N 440 x 100 x 215mm Tarmac Concrete Block Topcrete Standard Solid Block 7.3N 440 x 100 x 215mm

    Tarmac Concrete Block Topcrete Standard Solid Block 7.3N 440 x 100 x 215mm

    £1.26 - £2.44 (Ex VAT)
    £1.51 - £2.93 (Inc VAT)
    Topcrete Standard is a dense aggregate concrete block. Topcrete Standard blocks are manufactured with dense aggregate, so they are more robust and durable in building applications where strength is required.Tarmac's Topcrete 140 x 440 x 215mm Concrete...
    £1.26 - £2.44 (Ex VAT)
    £1.51 - £2.93 (Inc VAT)

Blocks

Blocks (also known as building blocks) are manufactured from concrete or cement for use in construction. They are similar to bricks but lightweight, larger in size, and chosen for function rather than appearance. They usually have a hollow core giving them good insulating properties. Blocks are often used as foundation blocks, or to construct loadbearing or retaining walls.

Types of blocks:

At Howarth we offer a variety of blocks, including:

Concrete Block
Concrete blocks are manufactured from concrete, cast in a mould. They are a popular choice due to being inexpensive, strong, and durable.

Solid Block
Dense Concrete Blocks are adaptable for several building applications, both above and below ground, particularly useful for building cavity or solid walls. Solid blocks with a standard finish provide an excellent base for plastering or rendering.

Lightweight Block
Lightweight blocks are manufactured from expanded clay aggregate, with a ceramic exterior and honeycomb centre. These blocks offer great thermal and sound insulation. Being lightweight, these blocks can be considered safer and easier to work with, whilst still being strong and insulating.

Hollow Block
Hollow blocks are excellent for structural work including high strength retaining walls, external walls, and cavity walls. They are incredibly durable, fire resistant and low maintenance. Plaster or render can be applied if you wish to paint them with a nice finish.

Breeze Block
Breeze blocks are a structurally reliable option, with excellent insulation properties. They are sometimes referred to as Cinder Blocks, as they are manufactured from cinder (coal) aggregate.

Foundation Block
Foundation blocks are manufactured from concrete and more economically friendly in comparison with older foundation materials.

Aerated Blocks
Aerated blocks are lightweight, strong, and reliable. They are commonly used as infill for beam and block flooring. Other uses include building cavity walls, separating walls, foundations, as well as flanking and partition walls. The most commonly used aerated block is the H+H Celcon Block, available in Solar, Standard, High Strength, and Super Strength grades

Frequently Asked Questions

What size is a concrete block?
Building blocks are manufactured in a number of sizes, the most popular size is known as a ‘standard block size’ and measures 440mm x 100mm x 215mm. If you are unsure of which block type is best for your project, please contact your friendly local Howarth branch.
How many blocks in a square metre?
A single block wall requires 10 blocks per square metre.