Off Road TT or Class C

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We are thinking of purchasing a Keystone Outback Ultra Lite 221 UMD but am wondering if this is a good choice for occasional off-road adventures. We currently drive a Four Winds 23U in places considered "four wheel drive advised" and have done so for several years with no problem. Lots of back country dirt roads in Southern Arizona and rarely does our rig see a paid campground. We are thinking that a TT with two sets of wheels is a better choice than single axle trailers - somehow linking cargo capacity with overall vehicle capability. Towing vehicle would be a 2010 Toyota Tundra 4X4 w/10K towing. Would appreciate any input on this topic. Thanks in advance.

[JRTJH]

The "better trailer" really isn't dependent on how many axles it has but rather how much "reserve capacity" the axles have. As an example, a single axle trailer that weighs 2500 pounds and is mounted on a 4400 pound axle will have a reserve capacity of 1900 pounds, while a tandem axle trailer weighing 6000 pounds with two 3500 pound axles under it would only have a reserve capacity of 1000 pounds. In this example, there's almost double the "reserve capacity" on the single axle trailer...

So, look at capacity, weight, construction (HD is better than XLite). Additionally, consider wood frame vs aluminum frame trailers. Wood construction with aluminum outer walls and "hand laid fiberglass insulation" typically will flex without damage better than aluminum welded construction with rigid foam "laminate" fiberglass walls.

There are only a very few "rugged construction" trailers available on the market. Keystone was building a Springdale SRT (Springdale Rugged Terrain) model in some of their lines back in 2011-2012. I don't know if they're still building that line of trailer or not.

Be very careful buying a new "ultra-lite" aluminum framed trailer on a BAL lightweight chassis and expecting it to stay together over "4 wheel drive only" trails. Chances are you'll break it before the warranty expires.

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JRTJH,
Seems I have picked a trailer with some of the features not desired for off-road use. This model has welded aluminum walls w/solid block insulation, a 2" welded aluminum laminated floor with R-10 block insulation, and a NXG frame from BAL w/leaf spring equalizing suspension. Given there are plenty of similar models out there, wondering if anyone has taken their rig on Forest Service roads and the like and what their experiences have been.
Our Four Winds 23U appears to have wood beams but they are few and far between. Encountered condensation on the outside of the rig which outlined the supporting members on it. Really surprised at how few and far between they were. This one is pretty tough - we've been on "four wheel drive advised" roads more than once with only vast amounts of dust collected inside the rig. Let's just say they aren't water proof and leave it at that. We've spent plenty of money and time caulking this baby.
Thanks for the input, really appreciated.