Our medium supers are fully assembled and painted. Corners are rabbet joints. Our supers are hand built and hand nailed with 7, 8 penny nails per corner. Very strong, well glued and has handles on all four sides. Come complete with metal frame rests to make it easier to slide or remove your frames during hive inspection or honey pulls. Our frames have no knots, full 3/8 sides and are glued and stapled. Foundation is plasticell with generous beeswax coating.