I'm planning to build a canoe rack out out of PT 4x4s, post and beam style. The goal is mostly to learn to build something that way.
I've designed it in SketchUp, below. Everything is a 4x4. The pegs are 3/4" in the design but I'm wondering if 5/8" wouldn't be plenty strong enough.
Since I don't have a clue what I'm doing, I hope somebody can tell me what the worst problems are with this design. Thanks! Please let me know if there's any additional information that I can provide.