I bought the dump trailer new to my specs. It is a BRI-Mar made out of Chambersburg PA. I got it from the dealer across the street from the factory to save on shipping. I think they are around 6' or 7' ramps. It is a deckover dump bed with a smooth bottom ( so soil dumps out). So the approach is a little steep. And when on top with some mud it is slick as ice. When I left a bucket on top of the neck, when I came back down I almost went over backwards ( not enough front weight). It has fixed sides, and tieddowns inside. The 4600 with a front bucket and a rear implement uses every bit of the 16' bed- and then some, so I need to park the bucket over the neck, so much for storing an extra bucket/front implement. As a dump trailer it should be pretty good. As an equipment hauler so-so. For a skid steer or smaller machine it would be nice. I ended up getting an eqipment trailer that was first used to move my stepdaugters "stuff" ( In ref to george carlin-) to Alabama. It now helps move my machine to and from dealer, and between properties ( a few miles ). I went low bid on the equipment hauler-- Appalachian trailers in ohio. Added just a few optional things, expanded steel "hay hauler" or deck over neck, full 102" width. There are lots of options if I were to use it more often would be nice, but for occasionaluse dont make sense for cost and weight( loss of payload). Things like electric jack, dual jacks. One that I should have gotten was the two speed manual jack 5 extra pounds and lots of convience.
The dump trailer has been underused, I am waiting for that construction job to come up with clean free rocky fill to dump in my mud- so I can have muddy rocks.
If I had to do it over- If I wanted a dump trailer again it would be with removable sides. If i were to get another equipment hauler I would go a little higher quality. After paying for the steel a little attention to detail, better wiring and running gear is not that expensive. I would also get a "torque tube" or some other thing that stiffens the trailer to prevent the front "tipping" a little without the rear being tipped also. "I" beams are good in resisting bending the long way, the two together is good at resisting bending sideways( like a truss) But in torsion it really is poor. Some of the better trailer MFG's in OK and TX do this with a pipe in the middle or with steel tubing for side rails. The dump trailer does not have that problem, shorter wheelbase and they used box tubing side rails. The construction of the dump trailer was very good. The wiring on both trailers was "minimalistic" I hope my experience will help someone not make the same errors, or at least know the compromises going in to a deal.