My Promaster Van Build: Rear Entry, Hidden Bath/Shower, and a Few Other Unusual Details

Page 8: Cabinets, Planking/Paneling and Plumbing Mock-Up

This shows the two main supports for the overhead cabinets. These are 2x2s, attached to the main roof frame rails with Rivnuts. The two cables are for the remote displays of the battery monitor and the inverter.

The overhead cabinets are paneled on the inside with 1/4″ prefinished birch plywood.

The 1/4″ pine planking was screwed directly to the roof frames, although I did first put apply this 2″ x 1/8″ foam rubber adhesive tape, as a small thermal break and to help with any irregularities. This stuff really sticks, and I used it in several other applications. I had decided early on that I was going to have exposed screw heads in the planking as well as generally.

Like with many other things on this project, I didn’t really plan out in advance as to how I was going to deal with certain issues, like the planking where it transitions to the side wall. The body frames/channels on these vans vary, and dealing with the different planes can be pretty challenging.

I just kept making it up as I went along, and attached furring as needed. One of the big advantages of using the planking over sheets for the ceiling and wall paneling is that it allows for a more incremental and improvised approach. That suited me.

I then attached small 1/4 sections of plywood to the wood furring to get the right curvature and angle to make it work.

I glued and screwed together the face frames for the upper cabinets from 1x pine, and cut in a 1/2″ groove near the bottom for the floor to rest on. The faces were just screwed to the 2×2 that was attached to the roof. At the wall, the cabinet floor is screwed into the bottom of another wood ledger that was attached to the wall. That’s a crude mock-up of the galley cabinet that was also my work table for quite a while.

I had zero experience building any cabinets prior to this project and was a bit intimidated by the prospect. But like anything else, breaking it down and seeing some others online made it pretty easy and satisfying.

These doors are more of the pine planking glued to a backing if 1/4″ plywood, and stained to bring in a bit of color.

I’ve covered the issues of the pine planking and the plywood panels in the Tour, so there’s not much more to say here. The LED puck lights are on several circuits and most with dimmers, and give more than enough illumination for our aging eyes.

Plumbing Mock-up:

The next step was to mock up the water tank, bath tub and plumbing. Locating the bath had to be done with consideration of where the drain would go, making sure it cleared any underfloor body frame members.

The bed on the other side is also a mock-up. It was helpful for fleshing out the various dimensions and specific locations. The Isotemp tank is also being located.

Continue to Page 9 for Electrical System

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