What's the Difference Between Breeze Blocks and Interlocking Concrete Blocks?

What’s the Difference Between Breeze Blocks and Interlocking Concrete Blocks?

Interlocking Concrete Blocks are quickly becoming the preferred solution for many building projects. Concrete is an effective material to use due to its durable nature amongst other things.

But there are other blocks that are made using concrete, such as breeze blocks. Is one better than the other? Are they the same?

In this blog, we will address the question ‘What’s the difference between breeze blocks and Interlocking Concrete Blocks?’

At PPC Concrete Products, we are here to provide solutions for your construction needs, from the person working their own part-time project, to commercial clients, and everyone in-between.

Monthly construction output had risen an estimated by an 1.6% value in June 2023, and we would like to think our accessible concrete products had a small part to play by giving our clients easy access to reliable and easy-to-use construction solutions.

What is a breeze block?

What is a breeze block?

A breeze block, also known as cinder blocks, are concrete blocks that are characterised by two holes by the centre of the block. In some cases when used as a decorative block, it allowed the breeze to pass through it, which is beneficial in warmer climates, hence the breeze block name in some communities.

The ‘cinder’ block name refers to an ingredient within these blocks, which are cinders, often called ‘fly ash’ or ‘bottom ash’.

Breeze blocks form a lasting connection in the same way most other blocks and bricks do, via the use of binding materials like cement. Breeze blocks are used for a variety of purposes such as…

  • Retaining walls
  • Load bearing walls
  • Partition walls
  • Garden Walls
  • Patios

And more.

Is a breeze block better than a brick?

Like with many building materials, it isn’t the case of one being better than the other, it’s more the case of which one works better for the situation at hand? For example, breeze blocks would be more effective in warmer climates simply due to the fact that air can travel through them easier.

Breeze blocks are also made of concrete, which ensures a better level of durability than a brick could guarantee.

What are Interlocking Concrete Blocks?

Interlocking Concrete Blocks explained

Interlocking Concrete Blocks are a reliable and durable form of pre-cast concrete blocks. Featuring a unique interlocking feature, which provides not only a heavyweight reinforced structure, but also the ability to create a secure connection without binding elements such as cement.

This makes it a perfect, relatively quick and simple to install alternative to traditional brick/block structures. The durable heavyweight nature of these concrete blocks enable them to stand the test of time, and stand the collective weight of the land it is holding behind it. Once interlocked, this potential only increases.

There are many advantages of Interlocking Concrete Blocks, one of which being their multiple methods of application, they can be used for a variety of projects.

Uses of Interlocking Concrete Blocks

Here is a list of some of the uses that Interlocking Concrete Blocks can facilitate.

  • Material Storage bays
  • Blast walls
  • Salt stores
  • Crash protection
  • Push walls
  • Security barriers
  • Segregation bays, i.e. recycling centres
  • Retaining walls
  • Industrial buildings
  • Fire breaks
  • Counterweights
  • Roadblocks

How high can you stack Interlocking Concrete Blocks?

Our interlocking concrete blocks have the potential to have 5 blocks stacked upon each other. This means that the fifth topmost can be a flat top concrete block.

When it comes to the height, Our standard-sized blocks are 60 cm in height, with 5 stacked together this would equate to 300 cm, which is exactly 9 feet (2.74 m) & 10.11 inches (ca. 26 cm) high. This means that a flat top concrete block can be placed at a maximum of 9 feet (2.74 m) high.

Keep in mind that we do have a variety of sizes that we offer, so the maximum height of your structure will be directly affected by the size of block that you choose.

What’s the difference between breeze blocks and Interlocking Concrete Blocks?

There are many differences between Interlocking Concrete Blocks and breeze blocks, ranging from the shape, to the way they are applied. As a result, both blocks are viable to use in a variety of methods. The differences are as follows…

How they connect

Interlocking Concrete Blocks form a solid connection through the use of studs and recesses that interlock with each other. This does not require the use of mortar, separation is extremely difficult without the use of heavy lifting equipment.

Breeze blocks use cement in order to bind with each other. Using this additional material and relative equipment, in addition to preparation and application, would also increase the cost, and use more time than an Interlocking Concrete block would use.

The shape

Our Interlocking Concrete Blocks come in a variety of different sizes. Though, the shape of the blocks are consistent relative to that size. Our blocks generally maintain a rectangular shape with protruding studs at the top, and recesses at the bottom of the block.

Breeze blocks are shaped rectangularly and have a more distinctive design. They generally have two holes in the centre of the block, this provides a variety of functions such as…

  • Reduce weight
  • Provide an additional area for cement to solidify between, creating an even stronger and deeply connected structure.
  • Improve insulation.

The weight

Breeze blocks are lighter than our Interlocking Concrete Blocks due to the aforementioned holes in the centre of the breeze blocks. The additional material of ash also contributes to the lighter weight.

Our Interlocking Concrete Blocks are made with without these holes, resulting in more concrete being used altogether, resulting in a heavier weight.

The ease of application

Breeze blocks are the more tedious option in terms of application, as you still have to place foundations, use a binding material, and generally apply the blocks by hand.

Whereas Interlocking Concrete Blocks require less manpower to build with, don’t require binding materials, and are bigger, so would take fewer blocks to build with.

Structural integrity

Our Interlocking Concrete Blocks are heavier by nature, in conjunction with the fact that they can achieve an extremely strong connection, they would be more difficult to topple than breeze blocks.

Additionally, breeze blocks need cement to create a lasting hold. If the cement is prepared incorrectly, or not allowed to dry properly, this can greatly compromise its effectiveness.

What can dislodge Interlocking Concrete Blocks?

What are Forklift Blocks?

Interlocking Concrete Blocks can be dislodged by lifting the block from the stud it was placed on. This is usually facilitated by heavy lifting equipment, this gives Interlocking Concrete Blocks a chance to be reused should that be required.

A high velocity impact also has the capacity of dislodging Interlocking Concrete Blocks, though these impacts can only really be made by vehicles crashing at a high speed. Aside from this, Interlocking Concrete Blocks can’t be dislodged unintentionally in most cases.

Purchase Interlocking Concrete Blocks today

As an established supplier all over the UK, PPC Concrete Products is always happy to help, which is why we encourage you to get in touch with any questions you may have or have a look at our FAQ.

In this blog, we hope to have provided key information for the question ‘What is the difference between breeze blocks and Interlocking Concrete Blocks?’ Whilst also providing additional information, including construction solutions that we offer.

Take a read of our case studies to truly understand how we have provided solutions for business in the past with the use of our Interlocking Concrete Blocks, and ultimately, how we can help you today.

Read our blog page for more insights into our passion, construction.


The Old Gasworks,

Higginshaw Lane,




Opening Hours:

Monday to Friday – 8 AM until 4 PM

Tel: 01706 655245

Email: info@ppcconcreteproducts.co.uk

Share on Facebook Share on Twitter Share on Google