Lumber Mill Structure question

[tomustang]

I am modeling the large Brooks Scanlon mill in Bend Oregon. They had a large struture like this and it is was the crane shed. Many mills that had drying kilns would have large indoor loading and storage sheds. It would be a waste once you spend the time and money to dry the wood to stick it outside to get wet. I have seen some mills that have built large sorters or stackers in these large buildings to protect the equipment also.

It's also meant as a pollution deterrent too, back when I worked in a mill in california I swear if wood dust floated out to a car on the street we were reported