Stair Stringer-17 Step Concrete-In Hot-Dip Galvanised for a Pair (2 Pieces)

Pair of steel stringers ready for concrete-in installations, hot-dip galvanised for outdoor and indoor use. Each stringer supports 17 steps with a rise of 175mm and a going of 250mm, sized to help create a secure stair run when paired with suitable aluminium or timber treads.

Designed for a variety of projects—from residential to commercial—these stringers accommodate tread widths up to 1200mm per pair. For wider spans, a third central stringer is recommended to maintain alignment and support.

Key specifications

• RHS size: 75mm x 50mm x 2.5mm
• RHS bolt hole: 14mm
• Treads bolt holes: 8mm / slots: 11mm x 18mm
• Rise: 175mm
• Going: 250mm
• Treads: 3
• Finishing: Hot-Dip Galvanised

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