CraftAndu built a functional rooftop tent for a fraction of commercial pricing, bolted directly to a standard roof rack using folding plywood platforms and a custom hinge design that simultaneously stows the tent, mattress, and support rods in a single motion.
The hinge geometry is the core engineering problem here, and it is worth reading for that alone. Clearance between folded sections required a non-standard solution, but the result is a structure CraftAndu trusted through a two-week trip with zero signs of wear. Extras include an integrated aluminum ladder, a folding interior table, and a waterproof buckle-on rain cover. The folding platform also creates a partial roof overhang below, which a perimeter tarp converts into what he calls a living room.
After two weeks of real use, the honest verdict is this: it works, it sets up fast, but it is still a tent. Cold, cramped, and requiring a morning dry-out from condensation. If you are evaluating rooftop tents versus ground camping or commercial RTT units, CraftAndu's field notes and the hinge fabrication details in the full Instructables writeup give you concrete data to work with.
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