Curved staircase design is an architectural element where design and art meet. Curved staircase design provide an upscale impression when they replace the more common L-shaped staircase. Curved staircase design require more time to construct and more engineering knowledge than conventional stairs. The another great thing about the curved stair design is that they do not acquire large space. Moreover they are available in the market in diverse materials. Wooden stairs, plastic stairs and metal stairs are very famous in the eyes of the customers. Among these materials the metallic steps are the strongest and last for years and years.