I live on 18 acres in the woods. I store my chicken scratch and black sunflower seeds and crumbles in the bags they come in, but store them in large (35 gal?) plastic garbage cans with their lids. I have not had any any mice or other critters chew into them. They are inside a metal barn which is closed up at night. I also have a barn cat in there too. IMO either plastic or metal garbage cans from Lowes or Home Depot will work great. I can put two 50 pound sacks in one. The lids fit tight enough to keep critters out, if they do get inside. Most feed sacks are not waterproof! FYI. No troubles and been here 10 years now.