Generally, indoor staircases are made of materials like wood or forged iron, while outdoor ones are made of materials that will bear the wear and tear of the weather, like galvanized steel. Spiral staircases are of two different types: indoor and outdoor. ©Agnese Sanvito What are the different types of Spiral Staircases? For a staircase to be truly spiral, the steps should revolve around a central point, but, on the other hand, helical stairs twist at a certain distance from the main point. Interestingly, the majority of the spiral staircases that are present in homes are helical staircases. Unlike spiral stairs, helical and curved stairs do not have a central column. What is the difference between the spiral staircase and the helical staircase? It is one type of round or circular stair in which the riser is connected to a central column. What is a Spiral Staircase?Ī spiral staircase turns around a central axis and rises as it goes around. Today, spiral staircases are still used in modern architecture and are often chosen for their unique design and space-saving capabilities. They were also popular during the Renaissance and often used as decorative elements in palaces and villas. Throughout history, spiral staircases have been used in castles, churches, and other important buildings. The oldest known spiral staircase was built in the 5th century BC in Greece and can still be seen today. They are a popular architectural feature that has been around for a long time, dating back to ancient times. Spiral staircases have been used for centuries as a way to save space while providing access to different levels of a building.
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