The prefab stairs are constructed of wood or metal, often also combined together or joined to the glass, so as to combine an aesthetic accurate with the practicality and ergonomics. Here are some models per day is without risers, for a visual light and modern.
Internal prefab stairs can be divided into two types regardless of shape, size and material they are made of: the masonry, usually built on site, are performed on the project and require more space, the prefabricated models are offered by specialized companies. Versatile, read and sometimes very compact, are modular and adaptable over time. Today the range of outputs is truly wide, with an offer of models that differ not only in shape and material but also for style.
Before the final choice of prefab stairs, must properly evaluate a number of factors. One of the main is the gap to be filled if it is low you can opt for a continuous ramp; otherwise it is a more appropriate angle model or one with intermediate landing. Other key factors are: the surface that the facility will occupy the ground, his weight and one that will have to support, as well as its position within an environment.