Hey WoodWrangler, Thats exactly what I use it for. I've built two portable roof's that I can pick up with my forklift, There built heavy, so they work good as weight to hold your lumber straight & flat. The two I have are only 10 feet long and you cant use them on longer lumber because it will stain the lumber. It has to fully cover the stack, any rain run off will stain the lumber. Other than that, it works great for that. :wink_smil