Hi all,
I recently made a lumber storage space beneath (crawl space) an addition of my home. I found the space is bone dry. So I laid a tarp sheet, put some 2x4s, and stored my lumbers. As the space is large, I don't have to stack them; they are just laid flat.
Now, my question is, how flat does the space need to be? As the tarp is laid directly on the ground, which was not perfectly flat, the 2x4s are not flat either. If I store my lumbers flat on their faces, do I have to worry the boards will warp or sag by their own weights? In this kind of situation, should I let them stand on their edges?
You advises would be high appreciated!