Now it is time to finish up the fuselage sides and get some skin on those bones. The 1/8" balsa sides are reinforced with 1/32 ply doubler around the wing mounting area and around the stab mounting area. There is a 1/8" by 5/16" balsa stick that runs the length of the side, both top and bottom. Why a crazy size like 5/16" you ask? That is so I get a full 1/4" bond to the fuselage side, and also a 1/16" lip sticking up to act as a guide for the top and bottom sheeting when it is applied.