Easy enough, I reinforced my closet rod with a piece of channel aluminum. Neighbor had trashed a pile of shelf standards. Used this to stiffen the closet shelves too. This stuff wasnt your typical channel stock though. Put two lengths of it together back to back and it would form a hexagon. Also used to work in te garment industry many years ago. They make special wall mount brackets that will support a rod in the middle and allow a hangar to slide over it. Maybe not all hangars though