I'm remodeling a bathroom in an American Foursquare house built in 1920, and we are trying to stay mostly true to the wonderful vintage feel of the house. The bathroom had been poorly remodeled in the 70s and it had what I would consider an ugly 1/8" "frosted" window that was 20" wide and 36" tall.
I removed the glass and stripped the lead paint that had been added to the inside portion of the door.
I haven't decided on a design yet, but I have been in contact with a stained glass window maker, who has been a tad pushy, so I haven't asked him this question (to reduce interactions). But they also recommended adding a solid pane of glass on one side of the window, but that would mean I cannot use a similar molding/trim to hold the glass in. I'm not sure why that would be necessary, as none of the other (exterior) stained glass windows in the house has that and they are original and in good shape - and this is an interior door.
Is there a way to measure the thickness of our existing stained glass windows and would that be a good reference for what the thickness should be for the glass in the door? One is oval and doesn't open. The other is side-hinged with a pretty thick frame:
But even if I could measure them for comparison, having stained glass in a door is very different from a window and I don't know how that affects the thickness requirement to be durable.
The main reason I'm asking is because I need to make the moldings/trim for around the window and I need to know how much of a gap to leave.
Incidentally, I also intend to add stained glass to the lower original window sash, but for not, I'd like to focus on the door.
This is the door, for reference. It is solid wood. The window is on the table behind it, but the photo is old and I've since finished stripping it.