How to Cut Molding with a Miter Saw How to Cut Molding with a Miter Saw

What You'll Need
Miter Box
Miter Saw
This How-To Guide

If you are adding decorative molding to the interior of your home, you will need to learn how to properly cut the molding. You may be looking to install ceiling molding in your dining rooms, hallways, or even in your living rooms. In order to get a proper join between molding pieces, you will need to know how to make the right cuts. There are many different ways you can approach cutting the molding. Using a miter saw is one of those ways. Below you will find a step by step instruction list on how to properly cut molding with a miter saw.

Step 1 - Know Molding Angles

You will normally find molding adhered or joined together at a 90 degree angle in the corners. Therefore, many of the cuts you will make with a miter saw will be at a 45 degree angle. This will make sure that you can properly fit the pieces of the molding together without seeing unnecessary gaps or breaks in between the molding on the ceiling.

Step 2 - Understand Mitering

Why use a miter? A miter makes it much easier to create the cuts for the angles on the molding. It effectively helps you perform this job without requiring so much additional rework.

Step 3 - Purchase Miter Box

Take a trip to your local home improvement center and purchase a miter box and supplies (including the saw).

Step 4 - Setup Miter Box and Cut

Setup the miter box at the angle required (you will measure the angle needed on your ceiling). If you have purchased a basic miter box, it will allow you to cut the molding at either a 45 or 90 degree angle. Position the molding inside the box. You will want to mimic the positioning in the box to the same way that the molding will be installed on the wall.

Tip: If you are cutting molding that is to be placed on window or around the doors, the molding should be placed face up in the miter box.

Step 5 - Cut the Wood

Using your miter saw, cut the wood at the required angle.

Tips for Cutting Crown Molding

Below are a few tips for cutting crown molding:

  1. Crown molding should always be placed upside down and face up. You always want the side that will rest against the ceiling to be flat on the bottom of the miter box.
  2. Saw at a 45 degree angle

Other Tips

Here are a few other tips when using your miter saw

  • Try a power miter saw. They will give you a lot of accuracy and precision in your angled cuts
  • Try purchasing a flexible angled miter box to give you additional angle options (not just 45 and 90 degree)
  • Try to use a miter box that has gauges installed. The gauges will give you an ability to lock the angle in place

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