I know this is old, but I have to ask because I’m so confused LOL. How did you secure the wood and metal beam to each other like that? You have the tip/end of the bolt sticking out the metal beam, with a nut to tighten. But where’s the head of the bolt? is it inside of the wood? if so, how is it staying in there? I don’t see how it wouldn’t just slip out and the wooden piece fall due to gravity. It would also be impossible to bolt ALL the way through that long piece of wood, or atleast very inconvenient. Sorry, just very confused and curious about how it’s held together!