Straight staircase PERI UP Flex 100 / 125

steelanti-slip stepwith landing

Overview
The PERI UP Flex site staircase is a modular steel scaffolding staircase assembled from stringers and individual treads. Available step widths: 100 cm or 125 cm with separate landings. A 10-leg stair tower reaches heights up to 50 m (depending on variant) and is designed for high loads and large user flows.

Key product information

• Step widths: 100 cm or 125 cm with separate landings.
• Designed for high load-bearing capacity; suitable for material transport and stretcher evacuation.
• Lightweight individual treads interlock and secure automatically, enabling near tool-free assembly.
• Perforated anti-slip steel decking for improved grip.

Applications & compatibility

• Use: access technology for temporary site access and high pedestrian traffic routes.
• Integrates with PERI UP scaffolding and is compatible with the VARIOKIT engineering kit.
• Allows two-way traffic, material handling on stairs and safe evacuation on stretchers.
• Adjustments: 1.0 m height increments in the tower and flexible fine adjustments via clamp rosette and bolt; Gravity Lock secures ledgers on insertion.

Technical specifications

• Scaffold type: Scaffolding stairs
• Floor plan dimensions: stair tower with steps 100 cm: 2.00 m x 4.50 m; 125 cm: 2.50 m x 5.00 m
• Type of use: Access technology
• Maximum structure height: up to 50 m (100 cm); up to 40 m (125 cm)
• Scaffolding grid: Metric
• Deck type: Perforated steel
• Assembly principle: each next step locks to the previous by insertion and rotation
• Standards: EN 12810; DIN EN 12810 and 12811; load classes 1–4 (0.75–3.00 kN/m²) and 1–6 (0.75–6.00 kN/m²)
• Permissible load: 3.0 kN/m²
• Compatibility: PERI UP scaffolding construction kit; VARIOKIT