I am adding some horizontal wood storage in my shop. I bought some portamate lumber racks when they were $20 a piece so I was just going to use those. I would like to go vertical but am limited with 8' ceilings. I hung the first rack up with 5' spacing in between the supports. After putting some lumber on there, the 5' span seems excessive. Most of the wood that will be going on this rack is around 10'. That gives 2.5' overhang on each end. Will this span of support be ok or should I move my supports and add another set to support the wood every 2'?