When our deck was redone I ended up with excess old weathered redwood decking. I felt bad just letting it go and it just so happened that we needed planters on one side of the house. And so this project began
I had seen this pattern before so I cannot claim ownership. It is an attractive approach to what otherwise might be a boring planter. Keep in mind most 2 x 6 boards are actually 1.5 x 5.5. So in order to make the pattern work while stacking the boards is to subtract 3" from each alternate layer. I opted to go 4 boards high or 22". The other measurements can be amended to suit your taste.