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  • haopengyou commented on Justin Tyler Tate's instructable Wooden Arches1 year ago
    Wooden Arches

    I would like to build an underground root celler, as well as a couple of cisterns. I want both to have at least 4' of earth on top of them to put them below the frost line. Do you have any suggestions for how to use your arches for this purpose? The roof, at most will have 60 psi.

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