Setting the Benchmark in Industry Standards for Design and Specification

Our commitment to the highest standards means our clients benefit from a high-quality product and exceptional support.

Here you will find some examples of our Design, Specification, and Certification documents. No two projects are the same but our service remains the same, whatever your requirements. If you have any questions, then, please get in touch. Our team loves to talk about Primestairs!

Materials and Finishes

Materials and Finishes

  • Structural steel S235 / S355, EN 10025 compliant
  • Welded in accordance with ISO 3834
  • Factory-applied anti-corrosion primer for balustrades
  • Optional hot-dip galvanising (EN ISO 1461) on request
  • Optional powder-coating systems on request
Modular Design

Modular Design Details

  • Modular flights compatible with most reinforced concrete stair layouts
  • Optimised geometry for accurate riser/tread dimensions
  • Modular balustrade to reduce the return installation time on site
Installation and Removal after concrete pour

Installation/Removal after Concrete Pour

  • Installed by crane or manual handling depending on size
  • Typically fixed into position then reinforcement works can commence
  • Correct rise & going without additional works involved
  • It will stay in place after concrete pour, reducing the striking time
  • Substantially reduces working-at-height risk

CLOSED STRINGER DESIGN

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Closed Stringer Stairs Specification
Closed stringer stairs side view

OPEN STRINGER DESIGN

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Open Stringer Design Specification
Closed stringer stairs side view

We work with many industry professionals and know the process requirements, legislation, and industry specifications inside out. The first step to ensuring your formwork stairs fit seamlessly into your project is to contact us and bring our expert team on board.

STRUCTURAL SPECIFICATION/CALCULATIONS

and example
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Closed stringer stairs side view

At Prime Stairs we work closely with your team, refining every design touch. Your architects and engineers review our calculations/proposals, and we integrate their expertise and requirements into the final specifications.

Our collaborative approach ensures that technical and architectural requirements are met with precision.

CERTIFICATION

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Closed stringer stairs side view
ISO0991 Certificate
ISO14001 Certificate
ISO45001 Certificate
Certificate-EN1090-UKCA
Certificate-EN1090-wc
Certificate-ENISO-3834
Certificate-EN1090-WPK

Enquire about our next-generation stair systems

UK Distribution Center:
Unit 4, Dalefield Industrial Park, Dalefield Way, Gravesend, Kent, DA12 2FL
Romania Distribution Center:
Romania, Str. Timiș 110, Săcele 505600

Enquire about pre-formed stairs