I am a sr in highshool and i have volunteered to construct stairs for Prom. They need to be around 4.5 ft tall with a run of stairs on both sides and a platform on top for the king and queen there is a total of 8 couples. I am thinking wood or steel? wich would be better. they have to disassemble to fit through a door and store in a garage. any advise or ideas or pic's of projets like this would be greatly appreciated. thanks in advance