Stair Stringer-3 Step Concrete-In Hot-Dip Galvanised for a Pair (2 Pieces)

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.