Outside Radius Corners for Crown Moulding
Here's a handful of cool ways to deal with bullnose wall corners when installing crown moulding. November 14, 2011
What do you do when installing crown in a house that has radius outside corners? Thought of corner blocks to butt the crown into, but can't find any with the radius.
(Architectural Woodworking Forum)
From contributor R:
If you're talking about bullnose corners, cut 2 - 22 1/2 degree outside corners around bullnose. Void behind will be miniscule. Do it all the time; base done the same way.
From contributor J:
Any good wood turner could make up these crown corners (four at a time) just like the baseboard corners and do it much easier then the best plaster-pull process.
From Gary Katz, forum technical advisor:
I'm with contributor R on that one. Crown looks nice when it breaks at an outside corner - that's where you really get good shadows and light across the profile. A two-piece outside corner adds a little more drama and fits into some homes very well, especially with bullnose drywall corners. You can get turned round corners, or even flex-trim round corners, but they don't have the same impact - they don't emphasize the shape of the profile because they don't break at an outside miter. We've always filled the little space with caulking. At one time, there was a company that made these cool little chamfered filler pieces which tapered down to a point - they had to be installed during drywall taping, at the lower edge of the crown. They looked very cool... but filling the small gap isn't even noticeable.
From contributor M:
I am with Gary. I hate 22-1/2 corners on a nice bold crown - cheapens the whole look. The best thing they came up with was the transitioning corner bead from radius to square.
The plaster corner was impressive but not practical.
From contributor B:
Here are some we made last year.
Images courtesy of B.H. Davis Company - Curved Mouldings