S5W3W31N Winding Staircase – Left-Hand (No Handrails)

S5W3W31N – Left-Hand Winding Staircase (No Handrails) | Trade Range

The S5W3W31N Left-Hand staircase is the most compact winding staircase layout in the Trade Range. Using five winder treads before the turn and one after, this design allows the staircase to reverse direction within an extremely restricted footprint, making it suitable for challenging floor plans where other layouts will not fit.

Turning to the left as you ascend, this version is supplied without handrails, making it ideal for staircases installed between walls or where bespoke balustrade components will be added separately.

Important stairwell opening & headroom guidance

With this tight winding staircase layout, the shape of the stairwell opening has a direct impact on headroom.

• A simple rectangular stairwell opening can be used

• However, to achieve the recommended 2.0m headroom, an L-shaped stairwell opening is required, following the direction of the staircase as it winds

This allows additional clearance above the winder section where headroom is most restricted. The stairwell opening should be considered early in the design stage to avoid installation issues.

If you are unsure whether your opening is suitable, please contact us before ordering.

Configured to suit your project

This staircase is configured online rather than supplied in fixed sizes:

• Select your total floor-to-floor rise

• Choose the overall width over the strings

• The configurator calculates in real time:

  • Individual rise height

  • Stair going

  • Pitch angle

  • Entry length, centre run (Run B), and exit length

All values are shown in a live Calculated Summary, allowing you to confirm proportions, footprint, and compliance guidance before purchase.

Key characteristics

• Model: S5W3W31N

• Stair type: Winding staircase

• Turn direction: Left-Hand (LH)

• Handrails: Not included

• Risers: 13

• Total rise range: 2500–2860mm

• Width range (over strings): 600–1000mm

• Stairwell opening:

  • Rectangular opening possible

  • L-shaped opening required for 2.0m headroom

• Pitch guidance: Calculated to target ≤ 42°, with optional manual going override

Supplied as a staircase kit

The staircase is manufactured to the configured dimensions shown at checkout. All calculated values are carried through to the order confirmation, ensuring clarity for manufacture, delivery, and installation.

If you require this layout with handrails, please select the appropriate S5W3W31N With Handrails product.