+22 Untreated Lumber For Raised Garden Beds Ideas. If you do decide to build your own garden beds from timber, the timber needs to be able to withstand moisture, resist insect and fungal attack and be safe for use near edible crops. Web when you're building a raised garden bed, you've got a lot of things to consider—location, soil, plants, etc.
Cca stands for copper and chrome arsenate. Cedar is widely used in outdoor construction. Web the most common and simplest way to build a raised garden bed is with lumber.