Not sure if this should be here or in interior home improvement...

I have 3 arched windows from my office to the foyer that are open arches. I built shutter/doors for them but wanted to put in a jam on the inside.

Can anyone recommend a site/product that I could use to put a 1x2 doorjam into an arch?

A 1 X 2" jam. Do you by any chance mean door stop? How thick is the walls.

A 1 X 2" jam. Do you by any chance mean door stop? How thick is the walls.

Yeah - I suppose it would be the stop... you know in a normal door, that thin piece that is furthest inside of the frame, roughtly 1x2 (or 1/2 x 1 1/2 in the rest of my doors)

The walls are 4in thick, the door/shutters are made from 1x6 vertical risers and 1x3 horiz stringers, mounted flush to one side giving a max thickness of 1 1/2 in.

Does that make any sense or do I need to snap a picture for reference?

Sounds like you are referring to the stop. A pic of the opening and the shutters would help but sounds like you could use strips of 1/4 luan to make a curved stop for the top.

If I'm getting it right after you hung the (door) shutters and when there closed you want to hide that gap from the shutter to the jamb as a closed door wood.

Wood sash bead could do the trick and give you a very nice look other then a flat wood stock.
Mouldings - Sash Bead (http://www.galliher-huguely.com/mouldings.html?page=inline&id=515)

If you have a problem bending soak it in water and then bend it. Or you can use a stiff back saw and partially cut into the wood to bend better.

Obviously the smaller and thinner the wood stock is, the easier it is to bend.

Wait a minute, thought you were going to post photos.

Steve there are moldings that are bendable but not in sharp curves.

We were involved in a Church re hap where an artists cleaned off the wax on a big oil painting.

I made the frame up. To get tear drop curves I gigged out on a ply and used nails to bend the soaked wood to make the first bends. I then re soaked to bend it more ( wide moldings ) for the curve. The fame was big 12' high.. Anyhow gig it if you have too.