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dive_instructor 07-28-2012 07:18 PM

Crown Moulding - funky corner
 
Hi everyone,

Because of a few reasons I am left with the below situation. It is a right angle wall/ceiling joining a wall that is say 45 degrees. I need to join the corners with crown. :huh: Any ideas to make this look good? BTW, I am going to re-cut the existing piece as it's not long enough anyway.

Thanks,

http://i262.photobucket.com/albums/i...r/IMG_0028.jpg

http://i262.photobucket.com/albums/i...r/IMG_0026.jpg

http://i262.photobucket.com/albums/i...r/IMG_0025.jpg

Thanks for anyone help you can provide.

Dive_Instructor

BigJim 07-28-2012 08:02 PM

I always built a little soffit like cornice to go across the angle which will square it up and then you will be able to run the ceiling mold on around like it was normal.

dive_instructor 07-28-2012 08:08 PM

Thanks Jim. That idea has been brought up before. That is probably the best option as I stink at regular corners, let alone this one. :thumbup:

D.I.

hand drive 07-29-2012 09:13 AM

It is a 90 degree corner so a standard outside corner will work save for the wall on the right in the pic. For the piece of crown on the left I would cut the angle a little bit less than standard and cut the angle on the piece on the right a little bit more to accommodate the bottom wall angle. If you align the bottom corners tightly then the rest of the miter will work regardless of how the wall angles behind the crown, the outside corner of the crown will float past the wall angle. The trick here is to just think about the top and bottom of the outside corner of the crown and aligning those two points. Use small test pieces (template)to get it right and figure out the exact angles and then cut your final crown pieces. Plan on caulk to be used on the underside against the wall for the piece on the right because of the wall angle.

There is a little 3/8" or 1/4" flat section along the bottom backside of the crown where it beds against the wall. The top edge of the 3/8" flat will be where you want the two crowns to align when forming the outside corner. This is because of the wall angle on the right and the piece on the right at the bottom backside where it meets the wall will really only rest against the top edge of that 3/8" flat wall bed, do you understand?

BigJim 07-29-2012 03:17 PM

Quote:

Originally Posted by hand drive (Post 976733)
It is a 90 degree corner so a standard outside corner will work save for the wall on the right in the pic. For the piece of crown on the left I would cut the angle a little bit less than standard and cut the angle on the piece on the right a little bit more to accommodate the bottom wall angle. If you align the bottom corners tightly then the rest of the miter will work regardless of how the wall angles behind the crown, the outside corner of the crown will float past the wall angle. The trick here is to just think about the top and bottom of the outside corner of the crown and aligning those two points. Use small test pieces (template)to get it right and figure out the exact angles and then cut your final crown pieces. Plan on caulk to be used on the underside against the wall for the piece on the right because of the wall angle.

There is a little 3/8" or 1/4" flat section along the bottom backside of the crown where it beds against the wall. The top edge of the 3/8" flat will be where you want the two crowns to align when forming the outside corner. This is because of the wall angle on the right and the piece on the right at the bottom backside where it meets the wall will really only rest against the top edge of that 3/8" flat wall bed, do you understand?

Could you post a picture of that?:)

Keith Mathewson 07-29-2012 06:45 PM

I'm not seeing how that's going to work either.

hand drive 07-29-2012 09:32 PM

Quote:

Originally Posted by Keith Mathewson (Post 977093)
I'm not seeing how that's going to work either.


measure and cut 50 times! that is how it is going to work. A half day corner :whistling2:

seriously though, I'll refer back to the 3/8"flat on the bottom backside of the crown. If the OP were to bed a longer than needed piece of crown against the ceiling and wall on the left side and scribe with a pencil the 3/8 flat on the backside ( think plumb and not following the right wall angle) and mark on the wall corner where the top of that 3/8 flat planes across it, this is where the measurement for both pieces will be to. that is the trick, the one point where both crowns will meet at that outside corner. this can only work because the ceiling is level around the corner and the only discrepancy is the angle of the wall on the right. The crown on the right will just bed against the wall at the top of the 3/8 flat ( pivot if you were ) and the rest of the 3/8 will be plumb and at a 90 degree to the ceiling, not following the wall angle. The right piece will also rely more on the ceiling to bed against whereas the left piece can be bedded against both wall and ceiling correctly.

Keith Mathewson 07-29-2012 10:41 PM

What you are describing is what jiju1943 is referring to as a soffit. When the spring angle changes on the wall which is not plumb then a "filler" piece must be added (the difference between the rake and plumb) or the molding must be a different size, there is a way of calculating that change of size but that is not what we are addressing here.

hand drive 07-30-2012 06:43 AM

Quote:

Originally Posted by Keith Mathewson (Post 977296)
What you are describing is what jiju1943 is referring to as a soffit. When the spring angle changes on the wall which is not plumb then a "filler" piece must be added (the difference between the rake and plumb) or the molding must be a different size, there is a way of calculating that change of size but that is not what we are addressing here.

If there is to be a filler piece needed it would be a small tiny rip that goes under the crown on the right against the angled wall, otherwise known as caulk if the space is not to great. It all depends on the crown profile and how much of a flat there is on the bottom backside, usually for most crown it's about 3/8 on the wall bed and 1/4 inch on the ceiling bed...

It can certainly be done no problem, I've crowned a room with multiple vaulted ceilings and cabinets involved and it was all stain grade. every outside corner going around those vaulted ceilings and cabinets was a major pain and a major learning experience..

BigJim 07-30-2012 07:15 AM

Quote:

Originally Posted by hand drive (Post 977414)
If there is to be a filler piece needed it would be a small tiny rip that goes under the crown on the right against the angled wall, otherwise known as caulk if the space is not to great. It all depends on the crown profile and how much of a flat there is on the bottom backside, usually for most crown it's about 3/8 on the wall bed and 1/4 inch on the ceiling bed...

It can certainly be done no problem, I've crowned a room with multiple vaulted ceilings and cabinets involved and it was all stain grade. every outside corner going around those vaulted ceilings and cabinets was a major pain and a major learning experience..

I understand what you are saying but I believe the different angle of the sheet rock will not let the top of the ceiling mold to lay back against the flat ceiling. I guess you could cut the sheet rock back so the top of the ceiling mold wouldn't touch the angle at the top.

hand drive 07-30-2012 07:29 AM

Quote:

Originally Posted by jiju1943 (Post 977423)
I understand what you are saying but I believe the different angle of the sheet rock will not let the top of the ceiling mold to lay back against the flat ceiling. I guess you could cut the sheet rock back so the top of the ceiling mold wouldn't touch the angle at the top.


or either rip some of the back of the crown out just at the top back portion. I do not think the spring angle of the crown is less than the wall angle, they actually look really similar in angle so the crown may just lay nicely against the angled wall. There is also a gap on the angled wall at ceiling height so that might accommodate the crown a bit..

dive_instructor 07-30-2012 10:41 AM

Thanks for the discussion guys. Based on my crown cutting skills, it probably would be best if I just made a small soffit and positioned the crown like the others.

Honestly, I'm not really following or seeing how these two pieces could fit together and not look like garbage.

D.I.

DannyT 07-30-2012 12:44 PM

cut 2 scraps at a 45 and test fit them. i see no reason why regular cuts wont work , you are making a 90 degree turn. the sloped wall will not make a difference as the crown angles out anyway to clear the top of it. why is the piece on the right flat against the ceiling? you will have to recut the piece on the left tho to a 45.

dive_instructor 07-30-2012 12:48 PM

Hi Danny,

If I don't do it that way the bottom of the crown will be in the air and not against anything.

D.I.

DannyT 07-30-2012 12:51 PM

why would the bottom of it not ba against the wall? just put it against the wall like the other piece. nothing you can cut will fit the piece that is there now. there might be a slight gap because of the slant of the wall , but nothing that can't be caulked.


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