Take a look at Sunnybrook Harmony. We just bought a 20FBS, single slideout. About 4600# ready to roll. Measures 17' 4" front to back (excluding A frame tongue and rear bumper. I tow it with a Jeep Liberty using a WD hitch. Harmony makes the best quality trailers compared to all I've seen, and we looked at all the brands before we bought the Harmony. Real gelcoat exterior, not filon. 2" walls, biggest holding tanks, 43 gal h2o tank. Everywhere you can see quality-Look inside a cabinet, its all finished, all plumbing vent pipes blocked in and covered, wheel wells inside blocked in and finished. First class, USA made components, right down to the clearance lights and lights on the inside of the trailer (Command Electronics). Crowned roof so water rolls right off. Try the 21 FBS, single slide with walkaround queen bed (60x80) not 60x74. I could go on and on, but all out there should take a look at these trailers. Sunnybrook was recently bought out by Winnebago, so I'm hoping the new corporate owners don't mess with a good thing.
No, I don's work for Sunnybrook, but just want to point out that there is an alternative to all the cheap junk out there. Don't flame me, just my opinion after 25+ years of RVing.
We bought our 21ft FunFinder X new in 2007. It is just the 2 of us and we love it. The FF did not offer slides at that time on the 21ft .A slide would be nice and give us a little more moving around each other room. FF also has a 13ft and an 18ft. We talk aboud trading it in for something newer and maybe bigger with a slide but the thought of not having our little, cozy, dependable FF makes us both sad Its our first RV It weights 3,700 pounds.
We have a 2011 Crossover 189Q. 19Ft 2inch overall. Great couples trailer (only sleeps 3 with dinette). I had the unfortuneate opportunity to test it on the worst Road conditions last summer and everything remained solid. The trailer stickered at 2714# with options and 3800# GVWR on a single axle platform. Anyway here is what sold us on this trailer for 2 of us. Double Door Fridge freezer 6 cu ft, double sinks, double propane tanks. 30 gal fresh water for weekend boondocking. Separate sink in bathroom so no brushing teeth in the kitchen sink. Permanent Queen Bed. Nice size hanging closet for coats, shoes etc. Nice size area for a TV. 12ft Awning. Aluminum Frame. ($14,000 CDN) There are benefits to dual and single axle setups. I would not let a flat tire be the deciding factor because whether it is single or dual the tire still needs to be fixed.
We downsized from a 20' stick-built to a 17'Casita and are delighted with it. It has everything that 2 people need, it is a delight to tow, gets good gas mileage, and is very well built. About 2300 pounds. The factory in Texas sells new ones direct to the public. We bought ours used from a local dealer.