I've got some extra shingles, tile, and hardwood flooring from when I bought my house. Right now its on some shelves in the garage. Would I be ok moving it all to shelves in my shed, where it would drop below freezing in the winter and get pretty hot in the summertime?

FC613 - Other than that which is kiln-dryed, that's how lumberyards store their lumber. I'd say as long as it's dry, you're fine.

Si, lay them so that they are flat too

After doing that, don't use the wood flooring until you've brought it inside to it's final destination for about a week so the moisture level can stabilize.

Got ya. Thanks guys. I'll probably never use the stuff, but I can't throw it out incase I need it sometime in the future. Its very nice finished hardwood floor, and I just wanted to be sure I can let it get that cold.

Wood doesn't care much about temp. It cares a LOT about humidity.

Yeah...the mantra of Arizona...it's not the heat, it's the humidity....

shingles will get brittle over time so they will not be as flexible if you need to bend them ie. for doing a valley. the shingles would probably be alright for flat surfaces.