root cellar

[snowman]

Next summer I plan on making a root cellar into the side of a hill. Im sure cedar or treated lumber would be preferable but I have no cedar on my land and I don't want to buy treated.Anyway my plan is to wrap the structure in landscaping plastic before i bury it and there shouldnt be that much moisture except for the very high humidity in a root cellar.Anyone have experience with this? Im not that young and it only needs to last 30 years or so before caving in.

[Minnesota_boy]

Have you any larch on your property?  If not, make your timbers a little thicker.  It takes quite a while for them to rot enough to cave in.

Have you any rock?  A little rock and concrete will last a lot longer than 30 years in the ground.