The connection of an upstairs room is most of the times complicated and costly. Carpenters and blacksmiths are usually needed. Have you ever thought, instead, about buying an adjustable staircase assembly kit? Would you like a straight staircase or a spiral staircase? No problem. Thanks to mounting kits and simple and detailed instructions (in pictures or videos), in just one day you'll be able to mount and use one of the various models of staircases in kit.