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Jul 03, 2013, 11:10 PM
Remodeled sun porch into a four season heated kids play room. The crown moulding in rest of the house is along square eight foot walls. In the sunroom however. The walls are square, but not all eight foot high. Backyard wall is 8foot ish. And opposing wall 12foot ish. I can't figure out how to miter the crown to where they fit together. Doesn't have to be perfect, going to paint and caulk. Any ideas or suggestions?
Jul 04, 2013, 07:21 AM
I am not too clear on your discription. Are you saying there is a difference in the wall heigth or demensions of the room. 8' to 12' is a considerable difference if it is the heigth if that be the case. If there is a header between the two rooms then do them independently. If you are saying that the length of the room is 12' then a 45 deg splice to join the two pieces to obtain the 12' you need. From your discription it sounds as if you have a 8' ceiling in one and 12' ceiling in the other. ??? A picture would be a great help.
Jul 04, 2013, 08:16 AM
do you have a protractor? hold 2 peices of scrap up to the corner and use a protractor to trace the angle onto the next peice. then cut it with your comp=ound miter. then with a copping saw. back cut the miter*****?v=vn7bkncf1_E
Jul 04, 2013, 09:51 AM
Pretty sure this is for a vaulted ceiling.

A couple of solutions for you:

1. There are crown molding protractor kits available that include the angle charts needed for complex angles like what you are doing. The angle finder protractor fits into each corner to get the angle and the chart looks something like this:

2. The easy way is to use corner blocks. Just install square blocks in each corner and then your crown cuts are just straight 90 degrees or one simple angle to match the ceiling pitch. Decorative blocks are available at any home store.