I have a 2016 5x8 folding utility trailer that I'm looking to part with. It's basically a Harbor Freight trailer that's 5' wide and has a black frame. I ordered it with the upgraded 13" wheels with 175/80/D13 tires, spare tire, 5-lug Dexter hubs, and 2000lb axle. The axle is a solid, camber-bent, made-in-USA piece. Not like a piece of U-channel with stub axles welded on like even the "heavy duty" Harbor Freight trailer. The trailer was purchased from a now-defunct company called Red Trailers.
The trailer is fully assembled with a 3/4" plywood deck painted on both sides with gray non-skid porch paint and removable 20" high, 1/2" plywood sidewalls painted fire engine red. I installed e-track at the front and rear ends (so it doesn't interfere with the trailer folding) and reinforced it with slotted angle iron underneath the deck. The coupler is a 2". The trailer has always been stored indoors.
A similar model is this one, but mine is 1' wider and has the upgraded wheels, tires, axle, and coupler. The tongue is the same single-beam style, not the A-frame style.
If anyone from here wants it, I'll take $900. It has California PTI registration, so it'll be sold with a Bill of Sale. Rather sell it to someone here than some rando on Craigslist.