The Best Treated Raised Garden Beds Ideas. Cardboard (keep the packaging of your raised garden beds for this step!) layer 2: Web one of the most popular materials used for raised garden beds is timber, with treated pine being commonly used.
Corrugated iron and galvanised steel. This guide is for those who want to build a raised garden bed and grow their own food. Having a hinged cover over your raised garden bed is a great way to keep pests out of your crop.
