Assembly of the National hive’s super or brood box can be confusing from the instructions given. The video below shows the correct way of assembling the parts. It is most important to check before gluing and nailing that the frames will be at the correct level in the box. For a bottom bee space hive the top of the frame’s top bar must be flush with the top of the side walls, for a top bee space hive there must be a bee space between the top of the frame’s top bar and the top of the side wall. The frame ends do not rest on the wood of the hive, so when measuring, remember to include an allowance for the castellated spacers or runner which will be attached to the inner walls to support the ends of the frame. It is a good idea to have a frame top bar to hand when assembling the hive body and use this to double check before final assembly.