For anyone looking to buy Steelcase brand new, it's worth knowing that the warranty for the fabric component depends on which series of fabric you choose from. The hardware components are all covered for 12 years, while the choice of fabric can land you the same 12 years… or as few as 5 years. The fabric options can be researched in advance[1]; find the matching swatch name/id, and check the bottom of the "Material Characteristics" tab for the warranty.
[1] https://finishlibrary.steelcase.com/