Considered The Leading Manufacturer of Spiral Staircases, The Iron Shop (a division of M. Cohen and Sons) produces high quality spiral staircases. We offer spiral staircase kits that are simple to assemble and easily customized. Available in Metal, Oak, and Cast Aluminum Victorian designs, each kit meets exacting standards for guaranteed quality. Headquartered in Broomall, Pennsylvania (just outside of Philadelphia), we have satellite offices in Texas and California. We pride ourselves on the highest quality spiral staircases at the lowest prices. We are confident that we can deliver the spiral staircases you want at a price you can afford. We boast over a hundred thousand satisfied customers throughout North America and strive to continue on this path for many years to come.