Stair-case and its utility

 
Staircase contributes to the overall appearance of the building. Climbing the stairs will be a lot better since it keeps one healthy by burning a few calories. Lifts in high rise building may be a necessity, but use of the staircase is the best option during emergencies such as fire in the building.
Use of the materials with many varieties of glass, cast iron and steel has become versatile and are being available at affordable prices. The immense possibilities of a staircase can be explored in terms of locations, materials and styles. Stairs may be spiral, straight, curved or in any other shape to suit the requirement and the circumstances and to exhibit the talent and vision of the Architect to bring in an elegant look to the building or structure. The heaviness of concrete staircase is now being replaced by the sleekness of steel. Spiral staircases are used in limited spaces. Straight run staircases are built where more floor space is involved. Geometric staircases have a pleasant look, very expensive and their width is not uniform. Stainless steel can be used for handrails to reduce the cost.
Dimensions of the staircase are normally specified in the building rules keeping in mind the various factors. The minimum width of a stair has to be 90 cm, riser 15 to 17.5 cm and tread 25 to 30 cm., for any house and for the public buildings, the riser must be six inches or 15 cm and the tread one foot wide or 30 cm.
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