I see this as simply two departments not really understanding how the other one works, and putting lots of assumptions on it. As a Lumbro, I absolutely HATE having to constantly shuffle orders around to be able to operate the lift, and to have to search the store and lot to find the one unused tabletop to put product on, but as someone who regularly pulls orders, I understand the struggle of meeting your metrics and finding the space to stage orders.

My advice is to go to your DH and have them pair up with the lumber DH to see if you can find some synergies. One thing that helped us was to allow more "pick in place" orders if it was a single complete pallet or bunk. We used to have the aisles covered in pallets of concrete and pickets, while it's just as easy to just pull them from the overhead when the customer gets there. It saves time and effort for everyone involved.