Payload capacity for typical class C

Generally speaking, the larger the rig the less payload it will have- if we are speaking of the same E450 chassis. The 24'-25' models with no slides have great payload capacity, and I've seen 31' models with slides that have only about 1200 pounds which makes the rig practically useless unless you either leave everything at home or just run overloaded. The newer E450 models have higher GVWR, but the fine print on that is nearly all of the extra capacity is on the front axle where it is of little use. My 29' with no slides has about 2000 listed on the sticker, but in real world useage it's very easy to overload the rear axle.