You would be surprised at the precut stuff in Home Depot & Lowes. As for the arch, you might want to think about the flexible moldings. Pricy but will curve to fit. Of course the arch really doesn't have to span the entire ceiling wall-to-wall. I think I know the fabric that you are referring to. I had looked at it as a possible choice for reupholstering the vintage rocking chair I have. It may not be heavy enough for contact cement. You need to check a piece to see if the contact cement will soak into the fabric. How about anaglytpa? I used ordinary border paste to stick it to the plywood on the ceiling of the Class C.
Victorian trim for good ideas. Many of their brackets are copies of the real thing. Everyone copied trim designs. I have reproduction Victorian era house and trim books. Most gingerbread trim id fairly easy to reproduce, especially the flatsawn. But you can spend a fortune buying some trim. I drool over the trim at VanDykes
. I would love to build a "storybook" house and put some of their corbels in it.
$344.. but it's soooo pretty....
Now that I went "off" someplace that I'm not really allowed..... To set up an "arch" for a non-woodworker, you might want to look into Gable decorations
. You would need a gable that can be adjusted.
flat-sawn pattern can be used with a very shallow pitch if you use a short "drop" in the center.
These two are little more than two pieces of running trim with a center drop. The running trim can be flat-sawn or "ball & spindle" type.
Okay, I'm a sucker for gingerbread trim. I think it's great but a PITA to keep clean. Also a PITA to make. So for anyone who is wanting to put gingerbread in the bus or home.... sand all edges until very smooth. Fill any holes before painting. Paint with a semi-gloss or gloss finish (please don't paint it..... white... yuk). Those Swiffer dusters work great for getting the dust out of all the little crevices and crannies that go with gingerbread trim. The architectural PVC stuff is far more stable than wood. It's lighter weight so you may be able to just glue it in place (glue as in good strong adhesive that comes in a caulking tube). And you SHOULD be painting the trim in many, many colours (polychrome !!! look at Painted Ladies"
. I'm talking 5 or more colours! For gold leafing, use the real thing. Last time I looked a book was $50
had enough gold leaf to cover most anything you were doing. Composition leaf tarnishes, even when sealed, and you can not bring it back. Okay I'm a little obsessed about gingerbread and Victorians. But I do think that anyone who paints a Victorian white or in less than 3 colours should be beaten and their house taken away form them to be cared for by someone who knows what they have and is willing to devote their life to the upkeep and preservation of a fine piece of architecture. Just not me!