Trade Range S3W3W33N Double Winder Staircase with Handrail (Right-Hand)

The Trade Range S3W3W33N Right-Hand Double Winder Staircase with Handrail is a practical, space-efficient 180° turning staircase designed for domestic builds, renovations and loft conversion layouts where a straight flight won’t work.

This is a double-winder configuration: three straight treads, then a three-tread winder, immediately followed by another three-tread winder (creating a smooth six-tread turning section), finishing with three straight treads and the top nosing. It’s ideal for builders and joiners who need a reliable, repeatable layout that fits common stairwell shapes while keeping install time sensible.

Included handrail & railing components (supplied as a matching set)

If you’re searching for stairs and railings, staircase railing, or handrails for stairs, this model includes a clean, traditional pine balustrade specification:

• 90mm Pine square newel posts

• 32mm Pine square balusters

• Pine STHR handrail

• Pine STBR baserail

Stair construction specification (Trade Range)

Built for a tidy painted finish and consistent site results:

• EdgeLam Pine strings

• 22mm MDF treads

• 12mm plywood risers

Why builders choose this stair kit

• Right-hand turn layout (suited to mirrored floorplans)

• Supplied with the handrail and banister components to match

• Designed to be assembled for predictable site fitting

• Clear upgrade paths (future options for different balustrades, tread/riser materials, etc.)

Optional upgrade

• Bullnose Entry Step available as an add-on for a smarter first step appearance.

If you’re a builder pricing a new staircase for a housing project, extension, or loft conversion, this right-hand double winder layout provides a solid balance of cost, practicality, and a finished look with the included staircase railing and handrail.