QW-SB20 Staff Bead – 20mm x 15mm Sliding Sash Window Profile

The QW-SB20 is a high-quality 20mm x 15mm staff bead designed for traditional timber sliding sash windows. Manufactured from Qwood’s advanced wood polymer composite (WPC), this profile delivers the authentic appearance of timber with the added benefits of modern material performance, consistency and durability.

Widely used by joiners, sash window manufacturers and timber window specialists, the QW-SB20 forms part of the trusted Qwood sliding sash range. It is designed to secure the internal sash while maintaining smooth operation, a precise fit, and a clean traditional finish suitable for both heritage and contemporary applications.

Unlike natural timber, the QW-SB20 will not rot, warp, split or suffer from knots and grain defects. This ensures consistent quality across every length, helping reduce waste, improve machining accuracy and deliver reliable results in both workshop fabrication and on-site installation.

The profile is supplied in straight, stable lengths and can be easily cut, machined, pinned, glued and painted using standard woodworking tools and finishing systems, making it fully compatible with existing joinery workflows.

Key Features of the QW-SB20
20mm x 15mm staff bead profile for sliding sash windows
Manufactured from durable Qwood composite material
Traditional timber appearance with enhanced performance
Will not rot, warp, split or twist
Free from knots, shakes and natural timber defects
Consistent straight lengths for accurate fabrication
Easy to machine, cut, fit and paint
Compatible with standard woodworking tools and processes
Reduces waste, rework and preparation time
Suitable for refurbishment and new-build sash window systems
Designed for reliable workshop and site installation
Why Choose Qwood Staff Beads?

Qwood sliding sash beads are engineered to improve both manufacturing efficiency and long-term window performance. By combining the aesthetic qualities of timber with the stability of composite technology, they eliminate many of the common issues associated with natural wood, including moisture movement, distortion and inconsistent material quality.

The QW-SB20 is part of a wider system of Qwood staff and parting beads designed to work seamlessly together, helping manufacturers streamline production and achieve consistent, high-quality results across every project.

Applications

The QW-SB20 is suitable for:

Timber sliding sash windows
Heritage and conservation window restoration
Residential joinery manufacturing
Commercial timber window fabrication
New-build and refurbishment projects
Request a QW-SB20 Sample

Qwood offers free samples for joiners, fabricators and manufacturers who want to test the QW-SB20 in real production conditions before specification. Samples are available across the Qwood sliding sash range to support system compatibility and product evaluation.