spiral stair specifications

• Central Support: The central column is the key structural component of a spiral stair. It provides stability and support for the steps. In some cases, especially in modern designs, the central column may be made of materials like steel, which can offer high strength while maintaining a relatively slender profile. In more traditional or decorative designs, it could be a stone column, adding a touch of elegance and durability.

• Steps: The steps of a spiral stair are usually wedge - shaped. The inner part of the step is narrower, and the outer part is wider. This shape allows for a smooth and continuous circulation around the central axis. The steps are typically made of materials such as wood, stone, or metal. Wood steps can bring a warm and natural feel, stone steps offer a sense of solidity and grandeur, and metal steps, like those made of wrought iron, can create a more industrial or contemporary look.

Prima is your one-stop shop for all of the building materials. We offer various types of staircases, railings, cabinets, windows and doors, shower enclosures, floorings, etc. We can provide a professional solution according to your request. As a leading manufacturer of different building materials in China, we mainly work with developers, contractors, builders, homeowners, designers, and architects. We have our designer team, they can help with shop drawings and 3D renderings. So we can help with your projects from design to finishing. Look forward to working with you! 

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