Tetravan solves the van shower without a permanent wet room. The Folding Shower 2.1 deploys into the aisle when you want it and folds flat against the wall the rest of the time; the magnetic zipped curtain seals to the frame so water goes into the tray, not into your cabinetry.

If you would rather build the shower into the structure, the stainless in-floor shower pan is a welded pan that sets into the subfloor with a drain - invisible under a removable floor panel until you need it, and effectively permanent once installed.

The universal shower curtain and the lightweight aluminium ladder (which doubles as the deploy support for the folding unit) complete the system.

You will need hot water and grey capacity: see Van Water Heaters and Van Water Tanks. Seal the surrounding floor with marine-grade Lonseal flooring.