You are on PERI's international website. Click here to switch to PERI USA. Click here to view all PERI websites.

PERI UP Stair 100 / 125


The PERI UP Steel staircases are assembled using stringers and individual stair treads. The 10-legged stair tower with heights of up to 50 m is designed for a load of up to 3.0 kN/m². With 100 cm or 125 cm step widths and separate landings, the site staircase is ideally suited for large numbers of users.

High load-bearing capacity
Designed for loads of 3.00 kN/m² for a run of staircase and landing of 20 m

With conveniently-sized widths
Sufficient space for site personnel to pass each other, transport of materials and stretchering injured persons

Erection without the use of tools
The stringers are mounted first followed by the steps which interlock during installation without requiring additional components

Technical Details

  • Staircases comprised of stringers and individual stair treads with 100 cm or 125 cm widths (clear stair widths of 96 cm or 121 cm)
  • Can be used as staircase units in the same direction or alternating staircase units with 2.00 m up to 50.00 m assembly heights
  • Ground plan: 2.00 m x 4.50 m (Staircase Steel 100) or 2.50 m x 5.00 m (Staircase Steel 125)
  • Permissible loads: 3.00 kN/m² for flights of stairs or 40.0 kN for the entire construction or 3.0 kN/m² for a run of staircase and landing of 20 m