Stair Parts Depot online store, treads, newel post, balusters, stair railings, fittings, handrails, wood, metal, stainless steel, high quality The DMS-101 is a 4-bend rail suitable for use on pool stairs and sloped entries Whether you are a company or individual, we supply the stair parts you need to make your project a success This stair tread. Stair Nation is a leading supplier of iron balusters. We carry numerous styles and series of iron balusters to feel every customer’s needs. Most of our iron balusters come in both hollow and solid and we carry 8 different colors to choose from. Satin Black, Flat Black, Oil Rubbed Bronze, Oil Rubbed Copper, Antique Bronze, Silver Vein, Ash.