"Uh Oh, I don't know if it is going to fit"
I bought a 1-piece shower stall for the guest bath in this old brick house. Normally a one piece fiberglass stall of this size is for new construction only --before walls go up. I thought I might be clever in getting a 36 in x 48 in 1-piece bath stall into a bathroom measuring 54 in x 92 in. The window opening (with sashes and trim out is 36 and 1/2 inches wide). Of course it had to be rotated inside for installation. I am not sure if it was cleverness, a challenge, or needless extra effort. I hope the next remodeler enjoys this post. It made it. Barely. Only, opening the bathroom doors inside is what made it possible. My neighbor came over to help.