How to Cut Concrete Blocks with Circular Saw [Step-by-Step]

How to Cut Concrete Blocks with Circular Saw [Step-by-Step]

How to Cut Concrete Blocks with Circular Saw [Step-by-Step]

A circular saw can easily cut a concrete block if you use the right blade and do it in a proper way.

In this guide, I'll show you how to do this with any circular saw.

Things You"ll Need

  • Circular saw
  • Diamond masonry blade
  • Safety Glasses
  • Hearing Protection
  • Respirator. Mask
  • Speed square
  • Hammer
  • Chisel
  • Pencil
How to cut concrete blocks with circular saw

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Steps to Cutting Concrete Block with a Circular Saw

Place the concrete block on the work surface.

Concrete Block ready for cutting
Concrete Block ready for cutting

Begin by marking the top of the block using a pencil and a speed square.

Marking the line using speed square and pencil
Marking the line using speed square and pencil

Place the speed square on top of the block while making sure the line is perpendicular and straight.

Marked line on the block
Marked line on the block

Once the line is marked, it's time to saw.

For cutting a concrete block with a circular saw you need a diamond masonry blade.

This blade is commonly available.

Diamond Masonry Blade for Cutting Concrete
Diamond Masonry Blade for Cutting Concrete

If you try to cut concrete with a blade meant for wood, the results won't be ideal.

diamond masonry blade has the added advantage of lasting longer than the regular blades while also being more efficient at cutting.

When the blade of your choice is fitted onto the saw, set the depth of the blade to the lowest setting.

Diamond Masonry Blade in Circular Saw
Diamond Masonry Blade in Circular Saw

Since a lot of dust is generated while sawing, ensure you wear protection for eyes, nose, and ears.

Gently begin cutting on the line marked and make sure never to go too deep too fast.

Cutting the concrete block
Cutting the concrete block

Deepen the mark gradually and continue so until the entire depth of the blade has reached.

Flip the block over and repeat the process.

Flipping the block
Flipping the block

Be careful of kickback and never push on the saw too hard.

Once both sides of the block are sawed, separate the blocks into two using a hammer and a chisel.

Separating concreate block using hammer and chisel
Separating concrete block using hammer and chisel

Finish and smoothen the edges of the block using either the chisel or the saw.

Concrete Block after cutting with a circular saw
Concrete Block after cutting with a circular saw

With this step, you have successfully completed cutting a concrete block using a circular saw.

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Safety Tips for Cutting Concrete

  • Wear sturdy work shoes or boots, long sleeve shirts, and long pants while working with concrete blocks.
  • Micro-fine particles generated while sawing through the concrete blocks are dangerous to inhale, so protection for eyes, face, and ear protection is highly recommended.
  • If you can smell or taste concrete, immediately stop sawing and re-adjust the mask/respirator.
  • Before making any adjustments, make sure the saw is unplugged.
  • Make sure depth is set all the way down before you begin adjusting. Doing so helps in identifying the point to be cut easily.
  • Stay away from the saw while cutting.
  • Never stay right behind or too close to the running blade to avoid injury in case of kickback. Kickback is when the back end of the blade catches hold of the wood, and the whole saw jumps back at you. Kickback is extremely dangerous and must be avoided.

About V Susan

Hi! I'm Susan. I am passionate about DIY projects and dark chocolates! Welcome to Mellowpine. We play around with beginner woodworking projects, CNC for hobbyists, and general woodworking tips.

If you'd like to connect with me or talk about something you like at mellowpine, drop me a mail at susan@mellowpine.com

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V Susan

Hi! I'm Susan. I am passionate about DIY projects and dark chocolates! Welcome to Mellowpine. We play around with beginner woodworking projects, CNC for hobbyists, and general woodworking tips.

If you'd like to connect with me or talk about something you like at mellowpine, drop me a mail at susan@mellowpine.com

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