Gussets? We don' need no steenking gussets!

       The gussets are glued to the frames with marine epoxy, then joined with #10 stainless steel wood screws.   The screws alone will provide enough strength to hold the frame members together.   The epoxy is even stronger.   Combine the two joining methods and this joint is stronger than if the wood had been one solid piece.   The holes must be pre-drilled with a tapered bit, so as to not split the Oak, as well as not break the screw head off.   The White Oak is so strong, that even with a #10 screw (rather heavy duty), it is necessary to bore a path for the screw to sink into.