How to Cut a 4x4 with Circular Saw

How to Cut a 4×4 with Circular Saw (Spoiler Alert: You’ll also need a handsaw)

For installing corner posts or fence posts, a 4×4 beam is super important.

So freaking true!

But here’s the thing……..

However, most 7 and 1/4 (“Skilsaws”) circular saws contain a maximum cutting depth of about two and a half inches, or a bit more. So for a 4X4 (3 and a half inches) cut, you will have to make two cuts. 

Most importantly………. that should be one on every side. 

In general, I use the speed square for marking the cut on every four sides to figure out how to hold my cut square. Then the big question pops up in my mind…..

Can I cut 4×4 with circular saw?

Honestly speaking, a circular saw’s blade will not cut flawlessly through a 4×4. But the good news is it’s possible with a hand saw.

Yessssss,,,,,,,,,,You heard that right!!!!!

With the help of a plain handsaw! So if that’s the sorta thing you want to learn more about, stick with me here coz I’m gonna show How to cut a 4×4 with circular saw in just 3 simple steps.

Okay, now let’s dive right in! But first…

Can you cut 4×4 with circular saw?

The simple answer is “No”


If you can use another handsaw with circular saw, then cutting a 4×4 won’t be a big deal.

Here is why:

Most people have a circular saw; its portability makes it easy to miss a 4×4 knife off the ground. Moreover, anyone can do it with a relatively simple trick with precise sawing.

Because the angle is less than 12″, a 7.25″ or 6.5” circular saw blade will not cut cleanly through a 4×4. Most circular saws have a maximum depth of just 2.5”. This means you have to cut twice.

Making two incisions makes it easier to correct the incision. Since the blade cannot cut the pole completely, you should mow when the bar is on the paved road or in the garage.

How to Cut A 4×4 with a Circular Saw?

For cutting 4×4 with hand saw, you have to arrange a pencil and measuring scale. 

But first & foremost…….

Put on boots and thick gloves for additional safety. Put on safety glasses and ear protection. 

Make no mistake about this!

Safety comes first. And since this is a thick piece of wood, have someone adjust it and help you turn it over.

Now let’s jump on the main process on Step-by-step process how to cut 4×4 fence post with the circular saw.

Step 1: Stabilize and Tighten

You can keep a 4 x 4 wooden board on a flat surface or a table. Ensure it’s not sticking on either side. Besides, you can place support on either side of the board by holding it and making sure it does not slip or slip.

Step 2: Marking and Measuring

Indeed, bold accurate markings and correct measurement will significantly improve the cutting process. It is best to use a pencil and measuring scale when drawing lines and ensuring all lines intersect at right angles.

Step 3: Cut A 4×4 Using a Circular Saw

Now hold the knife moderately firmly and apply light pressure. It would help if you made sure the blades are perpendicular to the motherboard after the first cut turns into a 4×4 and fires another shot.  

Now, rotate it again to create another one, and you have finished step four. Just be careful when ripping with a 4×4 circular saw. 

You flip this place many times, which can damage stability. You must be good at cutting four-wheel drive vehicles with a circular saw.  

If you have an absolute hobby, you may not have beautiful and good cutting, but you can finish your job with a circular saw.

Be warned:

Stay cautious not to cut the blade into the cut when moving back and forth. If you need to cut many posts, installing a chop or saw (about 12″) will make it easy and save you plenty of time. Read till the end to know more.

What Size Saw Do I Need To Cut A 4×4 With Circular Saw?

A million-dollar question!

The answer?

If you want to cut a 4×4 piece, then you need to consider many things, and among them, the saw size is important. Let’s talk about the saws sizes below. 

For rare general tasks, you can use a blade and regular circular saw and do many passes. 


Having a larger blade in your hand will also help you position and complete the cut in fewer passes.

Because a 12″ blade has more cutting capacity, a cheaper 12″ blade sometimes pulls 4×4 lumber out of a 10 “blade with ease. Therefore, if you want to work with 4×4 wood blocks, you prefer a 12-inch miter saw.

Usually, most circular saws have a 7 “blade with a cutting depth of just over 2” at a 90-degree angle and ordinarily less when cutting at an angle. 

Reality is…………

The smallest 6 “blade cuts a maximum depth of 2 and 1/8”. This means that the two most common kicks are not big enough for a 4×4 pass at the same time. In addition to the above, you can also cut a 4×4 with a saw. 

What Is The Best Circular Saw Blade Size To Cut A 4×4?

Indeed, circular saws are a repairman’s best friend. 

It’s versatile, easy to carry and use, and anyone can configure it to cut a wide variety of materials. Now, I’ll discuss the best circular saw blade size to cut A 4×4.

What saw can cut a 4×4?

They come in different sizes and shapes to suit different needs. However, we can all agree that one of the primary uses for circular saws is cutting and shaping wood.

Some saws allow you to insert and cut a larger saw blade, up to 30 cm. This will make the job easier as the larger blade will cut more profoundly at the same time. 

This shows that a 10 “blade will not be enough for your needs and a 12” blade will not. The problem is fitting a larger saw onto a regular saw because it is suitable for that.

One problem is that ………

The blade is heavier, the larger surface provides more resistance, and it will overload the motor. It is harmful to life or energy consumption.

Another problem is safety because you may need to keep the shield removed all the time, or you may need to remove it altogether. Learn more.

How to Cut A 4×4 at an Angle with A Circular Saw?

Indeed, cutting angles in 4×4 woods is easy. However, for some people, using a circular saw can be difficult. You may be afraid to cut the tree, think that it will damage it, or that the saw itself will scare you.

Step 1

Firstly, switch off the saw. You want to place the base about 3 inches. Be sure to draw a guide and adjust the depth.

Step 2

Next, you want to align the sheet according to the planned instructions. Make sure your driver is dark enough. Click the speed square. Now, connect the saw. 

Step 3

Make your cut. Be sure to hold the saw firmly during this process to ensure a smooth and safe amount. 

Step 4

Finally, it’s time to lose the handle.  

Your amount should be perfect when you align the blade with the cutting line. You may need to apply a little force to overcome the blade’s resistance.

Make sure you do not lift the saw during this procedure. If the bottom of the saw does not stick to the stop, it will cut the kerfs. If you have done your cut, start over.

If this is your first time doing corner cuts, consider buying practice wood.

Final Verdict:

A circular saw is the best friend of a handyman(Also for me).

In fact, it’s pretty handy, simple to use, and carry. Also, you can cut a wide range of materials. 

However, we all agree that one of the primary uses for circular saws is trimming and shaping wood. And you can use it in all cases, whether for general construction purposes or presetting for better performance.

Still, squares of speed are not what you want, although they are beneficial to have. 

Only a regular square or hand saw handle has a built-in square for those who don’t know. It is to align the cuts, as most of the circular saws do not cut as deeply.

I hope you have got vast information about it from above. 

And that’s all about our guide on ” How do you rip a 4×4 with a circular saw? “. Stay tuned to get more helpful information. 

Happy cutting!

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