As you'd guess, attaching stuff to the inside of a NidaCore cabin isn't just a matter of screwing things onto the wall, since the only solid thing you hit is the thin outer layer. Imagine attaching cabinets to very thin drywall.
Originally Posted by skysix
The elegant approach is to create channels in the composite into which you glue hardwood strips to screw everything to. You can also glue or VHB tape plywood to the inside where you need to mount things, the thickness of the plywood being dependent on what you are mounting.
In any event, the inability to mount things straight to the NidaCore is a big drawback of this sort of construction. Remember, too, that you won't be able to easily fish any electrical wiring through the walls, so figure all of your wiring will have to run through exposed chases or behind things you mount (or maybe, as some have done, between the finish floor and the subfloor)
2007/2012 custom Jeep Rubicon expedition motorhome
2004 Jeep Grand Cherokee
2006 Honda PS250 Big Ruckus Expedition Scooter
1996/2002 Honda XR600R highly-modded