Steel Stair Stringers – Prefabricated

Our prefabricated steel stair stringers are hot dip galvanised for superior strength & durability – offering long-term weather resistance and a clean, professional finish.

Designed and engineered locally in Brisbane, Queensland, these inclined load-bearing supports form the structural framework for internal or external staircases – securely housing and supporting the treads and risers on each side.

Whether you’re building a small set of stairs up to a deck, or a full flight of stairs to your property’s second storey – our steel stair stringers are available in sizes from 1 to 17 treads and are delivered to you ready to install.

Order online by selecting your required tred size, adding to cart, and placing your order online for Australia wide delivery.

Available Stair Stringer Sizes

• 1 Tread Stair Stingers: 568 × 150 × 400 cm
• 2 Tread Stair Stingers: 800 × 150 × 400 cm
• 3 Tread Stair Stingers: 1105 × 150 × 400 cm
• 4 Tread Stair Stingers: 1410 × 150 × 400 cm
• 5 Tread Stair Stingers: 1716 × 150 × 400 cm
• 6 Tread Stair Stingers: 2021 × 150 × 400 cm
• 7 Tread Stair Stingers: 2326 × 150 × 400 cm
• 8 Tread Stair Stingers: 2631 × 150 × 400 cm
• 9 Tread Stair Stingers: 2936 × 150 × 400 cm
• 10 Tread Stair Stingers: 3241 × 150 × 400 cm
• 11 Tread Stair Stingers: 3547 × 150 × 400 cm
• 12 Tread Stair Stingers: 3852 × 150 × 400 cm
• 13 Tread Stair Stingers: 4157 × 150 × 400 cm
• 14 Tread Stair Stingers: 4462 × 150 × 400 cm
• 15 Tread Stair Stingers: 4767 × 150 × 400 cm
• 16 Tread Stair Stingers: 5072 × 150 × 400 cm
• 17 Tread Stair Stingers: 5363 × 150 × 400 cm