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Dan Luxmor created a handy guide for cutting crown moulding corners. These handy little “cheat sheets” can be used on any crown moulding project that requires inside and outside corners.
Let’s sync up on crown molding terminology. Dan uses the “Cutting in Position,” method more commonly referred to as the “Upside Down and Backwards” method. Imagine you’re looking at crown molding on the wall. If you take it off, flip it over, and put it directly on the saw – it is now upside down and backwards. He learned this from Gary Katz at a Dunn Lumber workshop.
Step 1
Begin by making your crown molding square to the fence on your miter saw.
Step 2
Then trace where the molding lines up on the saw. You’ll use this for reference to keep the molding straight.
Step 3
Take a minute to familiarize yourself with the three settings you'll be using to make the cuts on your saw: 45L, 90, and 45R.
Step 4
Now let's get started. We'll begin with the by making the Inside Left Template. Place the crown molding on the miter fence and make sure it is square with the penciled in line. Set the saw to 45R and cut the right side of your crown-molding piece. Then set your saw to 90 and cut the left side of your piece. Now label your piece LH ISC 45 (this means Left Inside Corner 45 degrees).
Step 5
Inside Right: Place the crown molding on the miter fence and make sure it is square with the penciled in line. Set the saw to 45L and cut the left side of your crown-molding piece. Then set your saw to 90 and cut the right side of your piece. Now label your piece RH ISC 45 (this means Right Inside Corner 45 degrees).
Step 6
Outside Left: Place the crown molding on the miter fence and make sure it is square with the penciled in line. Set the saw to 45R and cut the right side of your crown-molding piece. Then set your saw to 90 and cut the left side of your piece. Now label your piece LH OSC 45 (this means Left Outside Corner 45 degrees).
Step 7
Outside Right: Place the crown molding on the miter fence and make sure it is square with the pencil line. Set the saw to 45L and cut the left side of your crown-molding piece. Then set your saw to 90 and cut the right side of your piece. Now label your piece RH OSC 45 (this means Right Outside Corner 45 degrees).
