I realize I am still in the beginning phase of designing this but I want to make a guitar wall hanger. The design as is will be a simple base plate (either plywood or 1x dimensional lumber) with 2 dowel rods set into the base plate. The guitar will hang on the dowels.
My question: Since even the most expensive dowels are vastly cheaper than the even the cheapest guitars, I want the dowels to be strong enough to not shear off while the guitar is hanging. SO, is there a reference for how much weight a dowel will hold when inserted into a board? If it helps, I doubt the dowel on the finished piece will be longer than 3 inches sticking out from the wall, and the guitar will likely be inserted as far back on the dowels as possible. As for how much weight, most weigh between 5 and 15 pounds, so let's budget for 20 pounds.