Pacific Oak Sawtooth Stair 40mm String (pair)

40mm Sawtooth Timber Stair String

Please note photo of sawtooth string is not the correct timber species see second photo for actual timber species sample.

Finger joined product on lengths over 2.5m (7 Treads)

Elevate your staircase with our precision-machined 40mm thick solid timber sawtooth string, expertly crafted for strength, accuracy, and a clean modern look in any home. These strings are sold as a pair and delivered as a left-hand and right-hand string together. The tread pockets are routed the whole way through to prevent water pooling and rotting the timber.

Dimensions & Profile:

• Thickness: 40mm
• Going: 240mm or 250mm
• Rise options: 170mm, 175mm, 180mm, 185mm or 190mm
• Precision-cut sawtooth profile designed to suit our 40mm Open Treads

This string is made specifically for open riser sawtooth stairs, where the treads sit on the cut steps of the string. It works equally well as a wall string or outer string and pairs perfectly with our 40mm Open Timber Stair Treads for a clean, secure fit. These strings can also work with 30mm treads if you are just chasing some more rigidity in the string.

Perfect for both new builds and renovations, the 40mm construction delivers solid performance in family homes while giving a neat, continuous side profile that suits contemporary, coastal, or traditional designs.

Key Benefits:

• Easy assembly with accurately cut sawtooth steps for a straightforward tread fit
• Smooth, sanded surfaces ready for your choice of stain, oil, or clear finish

All products are delivered raw, pre-finished sanded to 100 grit.

Pacific Oak, also known as Kembang Semangkok (Scaphium spp.), is a versatile Southeast Asian light hardwood with warm yellow-brown to light buff tones and a straight to shallowly interlocked grain that creates an attractive, subtle figure. It offers reliable strength, good stability, and excellent machining properties—making it easy to work with for precise stair components. Ideal for interior stair treads, risers, stringers, handrails, and balustrades, Pacific Oak provides a clean, elegant look with natural warmth that suits modern, coastal, or contemporary Queensland designs. Its cost-effective performance and smooth finish make it a practical choice for durable, stylish stair systems that age beautifully.