How would you join 3 craftsman headers with 2 inside corners?

[Grasshopper]

I am in the process of building out craftsman style headers, and have one odd little hallway where three headers will converge.

To try and make it as seamless and simple as possible, I was thinking about building all 3 headers separately, but fully assembled.  I'd leave the inside corner long, and dial the angle in and cut the entire header "on the flat" using my Kapex as it it were a large baseboard (being careful not to have any nails near where I'd be cutting on the inside corners).

Typically, I'd want to cope the inside corners which is an option if I wanted to butt the middle header, and cope the inside corner on both sides.  I'm not sure how easy that would be with the profile. 

Originally, I was going to build everything in place piece by piece, but I worry it will not look as seamless as if I did each header separate on the ground, and joined it in place.

How would you approach this?

See photo of existing hallway with casing and plinths installed (I joined the plinths using butt joints and dominos to ensure a 90 degree corner and butted the casings together, shimming to match the 90 degree corner on the plinths):
[attachimg=2]

See example of header I'll be adding (1x6 frieze board, with a small stop piece on the bottom and a 1x2 on top with an eased edge):
[attachimg=3]

See sketch of how I envision the headers coming together in a seamless fashion on the inside corners:
[attachimg=1]

Ok, now how would you join the headers?  ;D

 

[tjbnwi]

End wall first, butt the side wall pieces into it. If you feel lucky, make it up on the ground, slide the assembly into place.

Tom

 

[Grasshopper]

Tom,

Thanks for your response.

If I did the end wall first and butted the sides into the end wall header, how would you join them (butt joint, scribe, inside miter)?  Since the header comprises of a stop at the bottom that has a slight eased edge profile, a butt joint isn't an option as the profile would not match up in the corners.

Please elaborate if you can.

End wall first, but the side wall pieces into it. If you feel lucky, make it up on the ground, slide the assembly into place.

Tom

 

[chrisrosenb]

Tom,

Thanks for your response.

If I did the end wall first and butted the sides into the end wall header, how would you join them (butt joint, scribe, inside miter)?  Since the header comprises of a stop at the bottom that has a slight eased edge profile, a butt joint isn't an option as the profile would not match up in the corners.

Please elaborate if you can.

End wall first, but the side wall pieces into it. If you feel lucky, make it up on the ground, slide the assembly into place.

Tom

Miter the corners on the top & bottom pieces, butt the center pieces. That is how I would do it. Since everything has square edges, you could butt all of the pieces. Butting would make the job simpler.

 

[tjbnwi]

You could jack miter the eased pieces.

Tom

 

[Grasshopper]

How would you go about jack mitering the eased pieces.

Most of the techniques I see for making jack miters involves a chamfer of sorts (router bit or band-saw, table saw). With a small 1/2" stop piece that has eased edges I am having a hard time visualizing how this would come together and how to approach it on the small eased pieces.

Thanks in advance.

You could jack miter the eased pieces.

Tom

 

[tjbnwi]

How would you go about jack mitering the eased pieces.

Most of the techniques I see for making jack miters involves a chamfer of sorts (router bit or band-saw, table saw). With a small 1/2" stop piece that has eased edges I am having a hard time visualizing how this would come together and how to approach it on the small eased pieces.

Thanks in advance.

You could jack miter the eased pieces.

Tom

By hand with a pull saw. You just have to nip the corner so it all comes together. Butt 2 scrap pieces, see how they come together, visualize what has to be mitered to make a tight joint.

Tom

 

[Grasshopper]

*Update*

I decided to butt joint the frieze portions, and I mitered the stop and cap.

Thanks for your help - -

[attachimg=1]