This is a slide in livestock rack for hauling animals. It's got a very cool door that follows tracks as it is lifted. This is heavy duty, made of solid bars, not pipes. I considered mounting this to a small trailer to make a stock trailer, but I'll offer it up here first.
It's 96" long by 71" wide. The rails that sit on your bed rails are 21" off the ground. The pipes that run length wise along the bottom are 48" apart.
Located in Abilene KS.