How to Cut Plywood with a Circular Saw?

GearHaunt is reader-supported. If you buy an item through the links on this site, we may earn a small commission at no extra cost to you. Learn more

Whenever you plan to cut plywood sheets, the best thing you can get for the job is a table saw. But in some cases, you might now own one! If you are confused about what to use then, let us tell you, you can use your circular saw! 

Many worries that you can’t cut plywood with a circular saw but the reality is the opposite! If you know the trick, a circular saw is as beneficial in cutting plywood as a table saw! 

Today, we have come before you with a step-by-step guide for telling you how to cut plywood with a circular saw. Let us check it out! 

Step by Step Guide for Cutting Plywood with a Circular Saw 

Go through the easy steps to cut plywood with a circular saw. You don’t want to invest in a new saw if the older one can do the same, do you? 

Step 1: The Right Measurement 

The first job you must do here is to measure the distance. Check the edge of your circular saw’s base and the circular saw’s blade. The blade is situated at the bottom of your saw. 

Go through them and measure the distance. Here, you have to measure the length. Get your hands under the motor. Yes, you have to measure the side that is opposite to the arbor nut. 

We always recommend you to note down the measurement because there is a possible chance that you will forget what you just measured! So, get the right measurement and note it down in a paper for further requirements. 

Step 2: Mark the Lines

To learn how to cut plywood with a circular saw, you have to learn the importance of the foam insulation on the worktable first. Here, you must get rigid foam insulation in your hand. Lay it down on an even surface. 

We suggest you go for a worktable for cutting wood. If you don’t have any worktable, you can also rely on the floor. Whatever it is, you must ensure that you are relying on a surface that has no curves and is completely straight. 

The insulation you are using here is just like a cutting surface. Do not go for boards that will be a waste of money! Once you have set the foam insulation, you must check the factory edge of the hardboard that lengths 8’. 

Find 3 inches from the edge and start marking a cut line there. When you hold the circular saw, make sure you are setting the depth over ¼ inches. This is the thickness of your panel. All you have to do now is cut along the line you just marked! 

Step 3: Do the Math 

Check the paper and search for the blade measurement you have obtained in the first step. Get the circular saw fence to this measurement. With that, you have to add 4 inches to 5 inches first. Then add the width of the previous cut. It was about 3 inches. 

Make a total of all these three measurements. After this, mark a straight line on your hardboard panel. Make sure that the distance between this new line and the previous cut should be the additional you just measured in this step. 

Now, with your saw, you have to cut out this part. The cuts of the second and third steps don’t require being straight. As we will use factory edge afterward, these will get perfect. 

Step 4: The Perfect Alignment 

Have cut and place it on the bottom of the first piece. In this case, the factory edges are vital. Those should fact the right side. Now, go through the die side of your board and check that properly. Certify that there is the width of the fence measurement of the first step with once inches extra. 

It will be the measurement from the first step + 1 inch. Here, keeping the pieces aligned is necessary. Go for a large T-square for the job. 

Get your hands on the top guide to the base. Screw them properly. You can also settle for gluing the pieces. But we recommend you using the screws because it reduces the chance of the pieces tearing apart. 

Step 5: Positioning 

Again, hold the circular saw and get the base against the factory edge of the top guide. Make sure the hold is tight. And start cutting the additional area from the bottom part of the guide. 

So, you have got a circular saw guide. This will help you rip any full-length sheet of plywood. As you have already placed the edge of the guide, this is the exact position where your cut line will be. 

If you want to make perfectly straight rip cuts with the help of a circular saw in your plywood, this is the best way to make it! 

Step 6: Spray it 

Once you are done with the cut line, you have to check the backside of the guide. The plywood you are cutting will be in contact with this side. 

All you need to do is get your hands on an anti-slip spray and spay it there. The reason behind spraying is to keep the cutting guide away from sliding around. It makes the cutting process easier and effortless for you. 

Step 7: Get the Guide 

You are ready! Now, you have your hands on your guide. With the help of the guide, you can go for crosscuts. For this, you have to cut the guide short. 

On the other hand, if you want to add the guide to the bottom, you have to keep it longer. In that case, the length should be 48 inches or more. 

Step 8: Cut, cut and, cut

Now start using the circular saw guide you just made! If you are going to go for some more straight edges, you don’t need to worry about where the blade goes anymore. 

If you plan to rip a 12 inches wide board out of a plywood sheet, all you have to do is place it on the plywood. Make sure the insulation is on top of the worktable. 

Mark a 12 inches line from a selected edge of the plywood sheet. Then, place the cutting jig on the plywood and clamp every end of the guide. Switch on the saw; get it ready and start cutting! 

Wrap Up 

Yes, we know that if you want to learn how to cut plywood with a circular saw, you have to go through so many measurements and surely the process is not easy. But if you do it twice to thrice, you will learn the process! And once you learn it, it won’t be tough for you anymore! 

Don’t forget to let us know how you cut the plywood sheet with the help of a circular saw. Which saw do you use instead of a circular saw? Share it with us!