I have exactly 108 (9 feet) inches long for cargo. So, 2 skids.
It's rare that I miss out on a load because I can't haul 3 skids, and then don't get a 1 or 2 skid load, instead. If 2 vans are sitting there and a 2-skid load and a 3-skid load comes up, they're not gonna give the 2-skid load to...