There are a few tradeoffs between wooden and plastic lifetime sheds. Wooden sheds are generally stronger. Lifetime sheds are reinforced with steel on the inside so they are definitely strong, but not quite as strong as wood. Unfortunately, wooden sheds require a great deal of maintenance wereas the lifetime sheds require little if any. The lifetime sheds have snow load kits available for those concerned about excess snow loads. The pitch of the roof is such that they generally are not necessary, but a comforting purchase to concerned consumers.