by: Charles + Hudson There are a few common material options to choose from when building a raised planter box, but for us, it was redwood all the way. Redwood is 100% natural and resistant to rot and pests, which makes it an ideal material to use for building planter boxes and anything near the soil. We’ve also got a small dog and two young boys so we wanted to use a material that has no added chemicals, colorants, or plastics. Redwood | DIY | Building Material | Backyard Project Idea