Here is what I usually tow. It is a 8 x 19' Ice Castle fish house that I use for ice fishing and as a hunting shack up here in MN. This picture is of the Fish House and my truck on Lake Mille Lacs. In this photo, the wheels are cranked up to lower the floor down to the ice.
Here is what the inside looks like:
It weighs in at 3700 lbs before I put all my "must have" fishing or hunting equipment inside.