Most suitable for WORKSHOP on basis of this stairs' SMALL COST & SPACE SAVING & substance / Simple structure make INSTALL EASY Xinding supply several classic designs of stairs supported by steel stringer for your demand. -Spec. Width: 800mm-1000mm Stringer: 80mm*120mm quadrate steel and support Handrail: Φ50mm beech Baluster: Φ22mm steel tubes, vertical Treads: 38mm thickness, beech * Optional: hardwood types (beech, walnut, oak, teak, cherry, mahogany...) this design is available straight/L/U/Z Available in many shapes and wideths to accomodate your needs.To help you upstairs step by step on stairs we makeis what we untiringly aspire after.