With lumber being expensive this summer, we went a different direction. We bought 4. These are sturdier than I expected, no internal bracing needed. 30 minutes to put together including removing the protective film. They look very nice, and here's hoping they last as long as we live in the house. They do take about a cubic yard of dirt to fill in the 3.5'x6.5' configuration, so be prepared for that when you order these.