Tasmanian Oak 40mm Stair Nosing

40mm Timber Stair Nosing

40mm thick solid timber stair nosing, designed to transition the stairs into your finished floor at the top of open house stairs. See our stair configurator for custom floor finishes and custom strings to match.

Dimensions & Profile:

• Thickness: 40mm
• Width: 110mm
• Overhang/Nosing: 20mm
• Front Edge: Attractive 6mm pencil round nose profile
• Underside: Features a 30mm wide riser groove precision-milled to securely accommodate standard 30mm thick top riser for open house stair
• 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 40mm standard treads and 30mm 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.

Tasmanian Oak (a blend of Eucalyptus delegatensis, obliqua, and regnans) is a light, warm Australian hardwood with creamy straw to pale pinkish-brown tones and a fine, straight grain that finishes exceptionally smoothly. Versatile, stable, and resilient, it machines beautifully and takes stains or polishes with ease, making it a favourite for elegant interior staircases. Its medium density and excellent workability suit precision components like treads, risers, stringers and handrails — delivering a clean, timeless look that's perfect for bright, contemporary  spaces or classic designs