Which type of wood for curved rule in outdoor shower?

axxa · 2026-04-06T17:07:14+00:00

I'm considering building an outdoor shower similar to the one in the picture, but entirely out of wood. I'm thinking of making the "studs" by gluing together lamellas to a suitable thickness in a shell-shaped jig. But since the shower wall will be outside all year round, I obviously want the studs to last for several years, so which type of wood/material should I use? • 4-mm birch plywood - does plywood hold up in rain and rust? • Saw 4-mm lamellas from some construction timber? Pressure-treated - does the glue hold against the impregnation? Larch - does it crack before I manage to glue it? Pine/spruce - would likely rot within a year? • Other suggestions?