Spotted Gum 30mm Stair Nosing

30mm Timber Stair Nosing

30mm thick solid timber stair nosing, designed to transition the stairs into your finished floor at the top of the stairs. See our stair configurator for custom floor finishes and custom strings to match.

Dimensions & Profile:

• Thickness: 30mm
• Width: 110mm
• Overhang/Nosing: 20mm
• Front Edge: Attractive 6mm pencil round nose profile
• Underside: Features a 20mm wide riser groove precision-milled to securely accommodate standard 18mm thick risers
• Floor Finish: Premade for a standard 12mm floor finish, with flexibility to be packed up using packers or cut down on-site to suit varying upper floor thicknesses

This nosing is designed for the top step of closed housed stairs (traditional enclosed designs with visible strings) or closed sawtooth stairs (cut stringer styles with invisible strings), providing a professional finish where the staircase meets the upper floor. It integrates seamlessly with our 30mm standard treads and 18mm risers for a cohesive look.

Key Benefits:

• Versatile adjustment via packing or cutting for custom floor fits
• Easy installation with pre-machined groove for quick riser fitting
• Smooth, sanded surfaces ready for your choice of stain, oil, or clear finish

Available in both 1m and 1.5m lengths to suit your project. All products are delivered raw, pre-finished sanded to 100 grit.

Spotted Gum, one of Australia's most iconic native hardwoods (Corymbia maculata), features a striking, dynamic appearance with colours ranging from pale grey-brown to deep chocolate, often displaying wavy or interlocked grain and occasional fiddleback for visual drama. Extremely dense, tough, and naturally durable, it offers outstanding strength, fire resistance, and wear performance—ideal for high-traffic staircases in coastal and subtropical climates. Perfect for full stair systems including treads, risers, handrails, and balustrades, Spotted Gum adds bold character and unmatched longevity to modern Australian homes.