Tim Zimmerman wrote:

snip
What is common way to protect
our wood stocks from rain?

Start with some concrete blocks that are in contact with the ground.

Span the concrete blocks at 4 ft intervals with sistered 2x4s.

(You can cut pressure treated 2x4x96 lumber cut in half and nailed together)

Lay boards on sistered 2x4s.

Stick each layer as required.

Cover with silver tarp and weight down with more concrete blocks making
sure that you allow air to flow thru the lumber.

Get a beer and praise your work.

HTH

Lew