Mezzanine Flooring Staircases

Oracle Storage will design appropriate staircases into each mezzanine floor project and also provides guidance regarding relevant Mezzanine Building Regulations.

We also provide advice regarding relevant Building Regulations. Fairly recently introduced legislation, requires that at least one Ambulant Disabled Staircase (ADS) complying with Approved Document M of the Building Regulations should be fitted to mezzanine floors used for storage.

Our Approved Inspector (Butler & Young) can advise you on the Building Regulations and offer advice to when a simpler Type K staircase may be an acceptable.

Part K Mezzanine Staircases

Approved Document Part K requirements:

  • No restriction on rise between flights
  • 400mm clearance between landings and door swing
  • 190mm maximum riser
  • 250mm going of each step
  • Open risers
  • 900mm wide treads

Planningportal.gov.uk - Part K: Protection from falling

Part M Mezzanine Staircases

Approved Document Part M requirements:

  • 1200mm wide treads
  • Distinguishable step nosing
  • Twelve tread maximum rise between flights
  • 1200mm clearance between landings and door swing
  • 170mm maximum riser
  • Infill risers
  • Continuous handrail with 300mm extensions top and bottom
  • 250mm going of each step

Planningportal.gov.uk -  Part M: Access Statements.

 

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