Spiral Outdoor Staircase - Request Quote

About the Product

• The spiral staircase uses a carbon steel center column, typically sized at 102to114 mm diameter and 8 mm thick, ensuring reliable load-bearing performance. The steel treads, crafted from 4 mm thick checkered plate or anti-slip mesh, are welded securely to the column for maximum durability. The handrails and horizontal balusters are also made of powder-coated carbon steel, with standard railing heights of 1000 to 1067 mm in compliance with safety codes. All components are hot-dip galvanized or powder-coated for corrosion resistance, making this staircase ideal for outdoor environments exposed to rain and temperature changes. The stair diameter can be customized, typically ranging from 1200 to 2000 mm, and the compact spiral footprint ensures usability in restricted spaces while delivering stable, long-lasting performance.