I am designing the structural framing for a building in Orlando, that is to have a Bi-fold door installed. The building is a conventionally framed steel building (HSS columns,wide flange beams). I have attached a few plan views of the area to have a door installed. I would like a bit of direction as to what is required of the beam at the top of the door as far as attachments go. Please feel free to call or e-mail with comments. Thanks, TJ