How to Cut Crown Molding with a Miter Box How to Cut Crown Molding with a Miter Box

What You'll Need
Miter Box
Measuring Tape
Saw
Pencil

A miter box is a tool designed to help make precise and accurate cuts in a piece of wood or board. The miter box is usually a three-sided box that opens at the top and at each end. The boards are inserted into one end of the box, and are cut before emerging from the other side. You can purchase miter boxes that make any size of angle, but the most usual is in 45 and 90 degree angles. If you want to cut crown molding, knowing how to use a miter box makes a great deal of sense, as it can actually cut through the board without requiring you to measure and remeasure the angles, saving a lot of time.

Step 1 - Knowing when to Use the Box

In crown molding, the angled cut is used regularly, both inner and outer cuts being either 45 or 60 degrees in shape. These kinds of cuts are the only ones in which you will need to use the box. The rest of the angles and the straight edges can be cut using an ordinary power saw. In order to get the right kind of cut, you will need to measure out the sides of the molding and set the miter box so that it can fit the size of wood into the box. Before you make any cuts, it is a good idea to test-run your box on some scrap material.

Step 2 - Using the Box

First, you will need to measure out the area of the angle. Most cuts that you will need to make are 90 degrees, but sometimes outer cuts will be 45 degrees in length. In order to get the correct measurement, use a page of paper and put it into the corner. If it fits exactly, the angle is 90 degrees, but if it needs to be divided, then you will need to cut a 45 degree angle. You will need to mark out the exact angle that you need in pencil on the board.

Step 3 - Cutting the Angles

In order to cut down the board, place it into the box upside down. You will need to remember that when cutting the box, the angle of the cut will have to be inverted too. You should then put your saw into the box and saw the first half of the angle. Keep sawing along the other side of the molding, so that you have the angle. Withdraw the board from the box and pull the end of the board out of the boxes. You can repeat this at the other end of the board, before installing the board onto the wall.

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