Birch 24 Openplan Staircase – 13 Riser Space Saver

Birch 24 — Openplan Alternating Tread Loft & Space-Saver Staircase

The Birch 24 Openplan staircase is engineered for projects where every millimetre matters. Using an alternating tread design, this straight staircase allows easy access within limited floor space, making it ideal for lofts, mezzanines, attic rooms, workshops, compact extensions, and space-over-staircase installations.

Manufactured from 24mm birch plywood treads with 12mm birch ply riser downstands and 32mm engineered EdgeLam pine strings, the Birch 24 combines robust construction with contemporary open-plan styling. The open riser spacing remains under 99mm, complying with the 100mm sphere guideline while preserving light and visual openness.

Builders, architects, homeowners and DIY installers choose the Birch 24 for its fixed 1462mm total going, simple footprint, strong structural build, and comfortable tread profile compared with ships ladders or steep access ladders.

Key Features

• 13 risers — Alternating tread space-saving design

• Rise: 2500 mm – 2860 mm

• Width options: 570 mm – 760 mm

• Fixed total going: 1462 mm

• 32mm EdgeLam engineered pine strings

• 24mm birch plywood treads

• 12mm birch plywood downstand risers

• Open riser — gap under 99mm

• Choice of bottom paddle — Left or Right

• Optional carpet inserts in multiple colours

• Designed and manufactured in the UK

Specification Table

Use Cases

✔ Space over staircase
✔ Loft access
✔ Attic rooms
✔ Mezzanine floors
✔ Garages and workshops
✔ Garden office buildings
✔ Restricted footprint properties
✔ Modern openplan conversions

Available Options