How to Build a steel spiral staircase

Spiral steel staircases are extremely space efficient and sturdy, allowing people to climb to a higher floor by spiraling in a tight radius. Making one of these staircases requires some considerable skill in steel fabrication. This process involves cutting and molding the metal and using it to create a structure. Welding is also an important aspect to steel fabrication and can be used to build these spiral staircases.In this free video series, Wendell Moon, fabrication and welding expert, demonstrates some key components of building a spiral staircase including: choosing material shape, size, and gauge, attaching the stairs, pickets, hand rail, and platform.