> I've always used a solution Copper Napthanate and water to > soak hive bodies before assembly; however, the wood tends > to cup slightly I make quite a bit of sawdust, and I have found many answers to questions about wood here: http://www.woodweb.com/KnowledgeBase/KBIndex.html#search Here are two "articles" that may be of interest: http://www.woodweb.com/knowledge_base/Warp_in_Drying.html http://www.woodweb.com/knowledge_base/Cupping_of_resawn_lumber.html One question - do you REALLY need to "soak" the hive components? What if you painted or sprayed the exterior surfaces and edges only? This would certainly cut down or eliminate cupping, as the entire board would not get wet. I paint my woodenware, and some of it, acquired from a retiring beekeeper, dates back to the 1970s. The inside surfaces do not appear to require treatment if woodenware is stored "inside" when not on the hive. jim ("God is Dead" -- Nietzsche "Nietzsche is Dead" -- God) :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: -- Visit www.honeybeeworld.com/BEE-L for rules, FAQ and other info --- ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::