How to Cut Concrete Blocks With Circular Saw

| Last Updated: April 5, 2021

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Concrete blocks are an incredibly tough and durable material to cut through.

In the article below, we'll go through what tools and techniques it'll take to successfully complete the task. 

Cutting Concrete Blocks With a Circular Saw

Knowing the key tips and tools in cutting a concrete block is what will make it a successful cut. 

Figure Out Which Cutting Method You're Using 

You can use either the dry or wet cutting method. They both have their advantages and disadvantages and will ultimately dictate what style of blade you use.

In the dry method there's no lubrication involved, which means there's more dust created, which would require you to be outdoors or in a well-ventilated area. 

The wet method is the preferred method when working with tough materials. The water will keep the blade and the material cool and will also eliminate the issue of dust as it'll just turn into sludge thanks to the water. 

Understand The Type Of Blade To Use

If you were to go with the dry cut, it works best with a diamond-tipped serrated or toothed blade, preferably one with over 60 teeth; this will reduce dust creation. 

However, the wet option will work better with a continuous edge blade; this is just one large sharp blade that cuts through most tough materials like brick and concrete. 

Whatever option you go for, it's essential that it's diamond-tipped as diamond is more durable and made to cut through the tougher materials like granite, concrete, and brick. 

What Safety Equipment Is Needed For This Cut?

Like with any cut, safety equipment should be worn. You should be wearing a dust mask whether you're using a wet or dry cutting method as there's still a risk of dust particles being inhaled.

Another risk often overlooked would be when pieces chip away and, on the off chance, can fly towards your face; this can be stopped by wearing safety glasses. 

Another risk that's also overlooked is the damage to your hearing caused by the loud circular saw. If your ears are exposed to anything over 80 decibels for longer than 10 minutes, this is when your hearing begins to get damaged. 

Use Chalk Rather Than Pen To Create A Marker

Considering its concrete and pen don't properly transfer, and when it does, it's a pain to remove; it'd be better for you to use chalk as it easily comes off with water.

It's key that you mark the path which you'll be following as it'll keep your cut straight and uniform.  

Apply Gentle Pressure When Cutting

Many beginners believe that you need to force the circular saw into the material; but, that only takes energy away from you and results in a rough cut.

When cutting, let the weight of the saw do most of the work; if you need to apply more pressure, do so gradually until you're satisfied with the cut. 


If you follow our guidance featured above, you'll be on your way to cutting concrete blocks with no issue at all. The most important thing to remember here is that the type of blade you use is the most important factor along with the cutting method.