Tips for cutting aircrete

Here are our top tips for cutting aircrete blocks on site.

One of the benefits of aircrete is that blocks can be cut to size on site. This can be done using a mechanical saw but aircrete’s flexible properties also allow for easy cutting with a handsaw. No extra equipment is needed. This makes H+H Celcon Blocks ideal for self-builders and those looking to achieve wall detailing like aircrete spandrels

So, here are our top tips on cutting aircrete blocks:

1) Check your measurements

Firstly, we’re sure we don’t need to tell you this, but double checking your measurements and where you need to cut each block is well worth it to avoid the wasted time and material if you get it wrong. 

Precise measurement is particularly important when using our Thin-Joint system as you only have a 2mm joint to play with.

2) Score the block

Aircrete is a lightweight material which means it can be readily scored to help guide you. We always recommend marking out the cut before you begin sawing for a more accurate result. 

3) Set up correctly

Ensure that you are set up properly before you start cutting. Create a stable base to support the block and ensure there is enough room for the saw so you can achieve a clean cut.


4)    Invest in a tungsten tipped saw

Forking out for a good quality masonry saw is worth it. The tool won’t blunt as quickly, it will make the job easier, and you’ll get a smoother cut.

We recommend tungsten tipped saws, they should last around two to three years on site.


With block cutting being made so easy, using aircrete means you can achieve unique builds like this masonry tower built by expert bricklayer Lawrence Bates.  

To produce the perfectly round structure, Lawrence had precisely cut in half 600 aircrete blocks. He also was required to make intricate cuts to the blocks to create the tower’s windows. Building with aircrete made this tough job that bit easier.

Watch our YouTube video which demonstrates aircrete being cut onsite with both a handsaw and mechanical saw.