I keep a fair amount of lumber hanging in the garage from the rafters.
I just have leftover 2 x 12's every few feet that are suspended from the
rafters by chains. If you put enough of these up, you may not need to
stack the wood so deeply anymore.
Mark L.

George wrote:
snip

So, I am thinking of two solutions.

1) store the wood on end. Is there and advantage or disadvantage to
storing wood on end vs. flat?
2) have more shelves, maybe adjustable, so I would have only 1-3
boards high laying flat on a horizontal shelf.

Any good plans or ideas regarding this topic will be appreciated.

George