Truck Update 3/25/18

  • Received kitchen cabinet and locks
  • Received and fit checked 2 1/2″ rear pintal
  • Began truck cab passthrough cutout planning
  • Measured roof rack
  • Researched roof rack cargo box options
  • Started stripping down kitchen cabinet for repaint
  • Started laying out passthrough door
  • Purchased low profile deadbolt lock for passthrough door
  • Cut aluminum for the passthrough door edging
  • Ordered cargo boxes for roof rack
  • Started laying out passthrough door panel
  • Removed unneeded material from inside cab back wall
  • Removed old insulation from cab roof hatch (23 7/8″ diameter)
  • Removed rear cab windows
  • Marked passthrough cut out in back of cab
  • Laminated plywood for passthrough door panel
  • Trimmed down height of kitchen cabinet
  • Marked trim line on and trimmed forward passthrough frame
  • Cut passthrough opening in back of cab
  • Fit checked forward passthrough frame opening
  • Removed passenger seat and unneeded sheet metal
  • Removed rear pintal (42 pound assembly)
  • Bonded aluminum facesheets to passthrough door panel
  • Purchased masonite for new roof hatch insulation mount
  • Started looking for new cab seats
  • Ordered insulation/sound deadening for cab rear wall and roof hatch
  • Started tack welding passthrough frame to cab

Truck Update 3/18/18

One of the main reasons that we decided to make a new habitat for our truck was that we really wanted to incorporate a passthrough into the cab of the truck from the living area. Honestly, we’ve been a little overwhelmed by the logistics of designing and building a passthrough for a while. We figured that now would be the best time to finish the passthrough details before we start assembling the habitat box.

Wabi-Sabi Expedition Truck Passthrough Exploded View
Wabi-Sabi Expedition Truck Passthrough Exploded View

We designed our passthrough to have a frame assembly on the cab side and a frame assembly with door opening into the habitat side. The frames are connected with a water tight EPDM rubber bellows / accordion seal. The cab side assembly is made of 3 steel frames and can be disassembled to disconnect the bellows from the cab if future engine or transmission work requires that the cab be tipped up. The primary cab side frame is welded to the back of the cab.

The habitat side frame is made of 2 steel frames and 1 aluminum frame. The aluminum frame incorporates the door hinge and lock strike plate. The door opens inwards into the shower/bathroom/entry area of the habitat. The door is made from a 1 1/2″ thick insulated RV door panel. The hab side steel frame is bonded to the forward wall of the habitat prior to habitat box assembly.


  • Talked with vendors about passthrough bellows material
  • Finished design of passthrough
  • Cut steel for passthrough frames
  • Cut aluminum RV door frame extrusion material for passthrough door frame
  • Welded habitat and cab side steel pasthrough frame
  • Milled slots for passthrough door hinges in aluminum frame
  • Milled steel corner fillets for bellows connection
  • Welded and finished fillets
  • Ordered passthrough bellows material (ED-5389 from Uni-Grip)
  • Primed and painted habitat exterior passthrough frame

Aluminum Passthrough Frame Assembly

Steel Passthrough Frame Assemblies

Truck Update: 3/11/18

  • Ordered and received tile
  • Ordered and received LED eyeball lights
  • Ordered and received under counter LED lights
  • Ordered kitchen cabinet and locks
  • Ordered 2 1/2″ receiver pintal
  • Purchased marine adhesive for floor hardpoint bonding
  • Created assembly sequence list
  • Started passthrough design work
  • Started electrical wiring plan
  • Inspected position of floor on subframe
  • Measured and inspected all panels and corner extrusions
  • Trimmed foam to fit in hardpoint channel
  • Dry fit forward lower extrusion and front panel
  • Marked position of passthrough on back of cab

Habitat Update 3/8/18

Another big day for the project: we received all of our windows and doors from Tern Overland today. We got everything but the roof hatch, and it should get here in a little over a week (and certainly before we need it!). We spent some time inventorying everything we received, and it all looks very good.

We are especially excited that everything is double glazed so our habitat should stay nice and cozy. All the windows have integrated blackout blinds and screens, too.

Tern Overland Shipment
Tern Overland Shipment

Habitat Update 3/2/18

It’s a big day for the new habitat: our custom habitat kit from Total Composites arrived today! More details coming soon as we get into inventorying everything, but here are a few photos from the day.

We had 2 hours to unload the container, but with the 2 of us and a friend it took less than an hour to unload. Most of the panels are quite light and can be carried by 2 people. The floor panel weighs a bit and required all of us (including the truck driver) to carry it.

The container had a tamper free lock from U.S. customs on it. The truck driver didn’t have a bolt cutter and seemed concerned when he showed up. It took just a second to cut the lock off with an abrasive disc on a grinder.

Sea Container Arrives
Sea Container Arrives
Panels After Removing Small Boxes
Panels After Removing Small Boxes
Panels After Inspection
Panels After Inspection
Floor Panel on Subframe
Floor Panel on Subframe