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How To Cut Baseboard Inside and Outside Corners With Miter Saw?

You probably have a miter saw with you and wondering if you could use it to cut the outside corners of the baseboard. The answer to your query is yes, definitely!

“But, isn’t it too gigantic to cut such a small piece of board?”

Well, not actually. The thing is, you have to be perfect in case of cutting a baseboard part.

This is because the baseboard is quite visible on the floor corners, and it looks awful if not joined precisely. That’s why it’s best to use a miter saw to cut corners and get the most out of your home decor! So, if you want to know how to cut baseboard outside corners with a miter saw like a pro, keep reading this till the end!

Can You Use A Miter Saw For Cutting Baseboard?

Certainly, yes. A miter saw is one of the best options you can have while cutting a baseboard because of its comfortable position and excellent precision in cutting. Baseboard cutting demands a lot of precise angling, which can be easily achieved if you are using a miter saw.

See More: What is a Miter Saw Used for?

However, if you are looking for more precision, it’s better to use a compound miter saw with at least a 10-inch blade attached.

Inside vs. Outside Corners: What To Keep In Mind?

In the case of baseboards, cutting inside and outside corners can be a bit tricky. You may not easily differentiate between the two so easily. You need to use the exact same angle and bevel for making the cut. Then again, the finishing of both the boards looks exactly the same.

However, there is a bit of difference between these two cuts. The outside corners curing will result in having a longer front. This is because it has to fit the wall properly. On the other hand, the inside corner cut will not result in such a long length.

How To Cut Baseboard Trim With Miter Saw

To cut the outside corners of a baseboard, you need to go through an entire process. You can’t just simply go on cutting outside corners without properly cutting the inner ones. That’s why, in this section, we will be going through the standard step-by-step process of how exactly you can cut baseboard corners using a miter saw.

Tools You Need

how to cut baseboard outside corners with miter saw

Steps To Cut Baseboard With a Miter Saw

Basically, there are three simple steps involved if you are to cut a baseboard with a miter saw. Cutting the scarf joint, cutting the inner corner, and cutting the outer corner. Keep reading to find how to carry each step on perfectly.

First Step: Scarf Joint Cutting

You won’t always be lucky to have a piece of baseboard that fits your wall’s length. The nearest possibility is that you will need to join two boards together to cover the entire wall. Now, it’s not a simple task to just join two pieces together when it comes to a baseboard. You need to cut both boards at a 45-degree angle to have a perfect joint. Here’s how you can do it.

  • First, you need to start with two pieces of baseboard that have a 90-degree cut on the ends.
  • Now to have a scarf joint, place the first board on the table and mark a 45-degree angle on it.
  • Place the miter saw at a 45-degree angle matching the mark on the piece.
  • Slowly cut through the board with the blade of the miter saw.
  • Once done, use a smoother to smoothen the cut part.
  • Do the same for the other piece of board, as well.
  • Do not over-sand the cut area of the boards. It will not allow the pieces to glue together.
  • Now, join the two pieces with wood glue applied in between.
  • Use nailer to make sure they are perfectly and securely locked together.

See More: How to cut 45 degree angle without a miter saw?

Second Step: Cutting Inside Corner of The Baseboard

Now comes the part where you cut the inner corner of the baseboard. When two boards meet at the corner wall, it forms a coped joint. So, you need to make a coped joint on both pieces. Follow the following steps for the process.

  • Place a piece of board flush at a 90-degree angle against the wall.
  • Now, place the other one facing down the wall.
  • At this point, you need to get a piece of board and hold it in a perpendicular way on the faced-down board. Now, do a tracing of it with a pencil.
  • Now make a cut on the board according to the profile using a back bevel cut with the miter saw.
  • Then, let go of the back bevel remainings unless the second piece fits perfectly against the first one. There should be no gap at all.

See more info: How to Cut A 22.5 Degree Angle on A Miter Saw?

Third Step: Cutting Outside Corner of The Baseboard

Finally, you need to cut the outside corner of the baseboard. Before you cut, finish measuring, cutting, and installing the baseboard molding on the wall. Then follow the steps.

  • When it comes to the outer corner, place the first piece of the baseboard on the wall so that it extends past the outer corner of the wall.
  • Take the pencil and mark the point it will be meeting with the other piece at the outside corner. You can use try square or combination square for this purpose.
  • Place the board piece on the miter saw table and set the angle marker on the saw at 45 degrees.
  • Run the exact same procedure for the other piece of baseboard, as well.
  • Run the blade smoothly across the board’s flesh and sand it after cutting. Return the angle to the default position after you are done.

See more info: How to Cut a 135 Degree Angle on a Miter Saw?

Final Thoughts

The first and foremost thing to keep in mind when you are going to use a miter saw is that you need to be extremely careful. The machine is a useful one but can be a risky one if not operated under caution. If you are a pro and know how to cut baseboard outside corners with a miter saw, it’s totally cool!

However, if you are someone just getting his hands on the machine and working with baseboards, you may need to get your hands dirty first. Try to have a few sample cuts with the miter saw before you are actually cutting the baseboards that are finally going to be used on the wall.

Happy cutting!

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James R. Robertson
James R. Robertson

James R. Robertson is an expert advisor in all types of saws. His hobby is using different types of saw tools and has over 8 years of experience. Based on his experience with different types of saws, he is sharing his opinion about various saws. So that a beginner can get started right away. Happy reading!

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