Now on the corners that are coping cuts the above process is the first step in the coping of a corner. You must now remove the excess wood so your corner fits in place. Start by marking the profile of the crown molding with a pencil so it is easy to follow with a coping saw.

Now hold your coping saw at a 70 degree angle and follow the profile that you marked with a pencil. Rotate the thin blade as needed to follow the profile. Once you cut out the bulk of the excess material you can fine tune with a rasp or file.

Sometimes when coping crown molding you may cut a perfect cope along the profile and it won’t fit properly in the corner. There are 2 reasons way this may occur. One the piece of molding you are fitting the cope to is not properly set on the wall at its intended angle. Two you did not back cut your cope at a sharp enough angle. You need to make a sharper back cut when coping crown molding 

Also there are two spots on the back of your coping cut that will keep your corner from a tight fit. Highlighted below are those two spots. Hold your coping saw at a very sharp angle and remove some of the excess wood.

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