A: Each board weighs roughly 50 lbs.
A: Never use pressure-treated lumber for raised beds for you vegetable garden.
A: Yes. MCA-treated lumber used to construct raised vegetable and flowerbeds are increasingly popular and practical. Scientific tests prove there is no significant uptake of preservatives into plants. And treated wood used for tomato stakes, flowerbed edging, planters, retaining walls, trellises and compost bins have the added advantage of lifetime durability.