Blackbutt Open House Tread

40mm Open Timber Stair Tread

Elevate your staircase with our precision-machined 40mm thick solid timber stair tread, expertly crafted for durability, comfort, and a seamless fit in open-style stairs.

Dimensions & Profile:

• Thickness: 40mm (finished at 39.5mm to fit nicely into strings)
• Going: 240mm or 250mm
• Total width: 260mm or 270mm (includes a 20mm overhang/nosing for a classic, elegant projection that enhances safety and aesthetics)
• Front and Back Edges: Attractive 6mm pencil round nose profile on both – subtle, smooth rounded edges that provide a refined look, reduce sharp corners, and ensure a balanced, open aesthetic

This tread is versatile and suitable for open housed stairs and open sawtooth stairs. Manufactured without a riser groove for open configurations where risers are not used and stub risers are used to meet regulation – See Stub Risers.

Perfect for both new builds and renovations, the 40mm thick construction ensures long-lasting performance in family homes, while the pencil round edges and overhang create a timeless, sophisticated finish that complements contemporary, coastal, or traditional designs.

Key Benefits:

• Streamlined installation for open stair systems
• Smooth, sanded surfaces ready for your choice of stain, oil, or clear finish
• Naturally beautiful grain and tones that add warmth and character

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

Blackbutt, a premium Australian native hardwood (Eucalyptus pilularis), boasts a clean, uniform appearance with pale golden-brown to straw tones and a straight, even grain—occasionally accented by subtle gum veins for added rustic charm. Exceptionally durable and fire-resistant, with high density and strength, Blackbutt excels in high-traffic areas and is ideal for stair components that demand longevity and low maintenance. Its neutral palette complements contemporary and coastal  interiors, while its natural toughness makes it suitable for treads, stringers, risers, and handrails that stand up to everyday family use.