Staircases: Build a Spiral
Designed in Italy, this modular spiral staircase kit comes with everything you need to get to the next level. The do-it-yourself kid has a triangular universal landing, railings and balusters. Missing are the bulky bolts and unwieldy welds common on many sprial staircases.
Civik Staircase Kit starts at under $1,500 (April 2006). Dimensions: 8'3" to 10' height; three widths of 4',4'7" or 5'3".
Instructions are provided in a booklet and a demonstration video. The treads have non-slip PVC covers and the handrails are covered with a soft PVC rubber.
This staircase can be installed clockwise or counter-clockwise.