Pair of hot-dip galvanised steel stair stringers designed for a 3-step concrete-in configuration. Rise is 175mm and going is 250mm, suitable for residential, domestic, office, and commercial applications. Sold as a pair with RHS size 75mm × 50mm × 2.5mm. Bolt hole for RHS: 14mm. Treads bolt hole: 8mm / slots: 11mm × 18mm. Finishing: Hot-Dip Galvanised. Clear span to 17 steps when used with aluminium or timber treads, up to 1200mm tread width per pair. Installation and span options For wider spans, a third central stringer is recommended. Three footing configurations available: In-Ground, Bolt-On-Concrete, Landing To Landing. Notes: Engineered to support typical loads under standard building scenarios and compliant with relevant Australian Standard Building Codes. Shipping options available. In‑store pickup available — contact us for pickup location & hours.
