Selecting Slip Resistant Pedestrian Surfaces

The Law

The 2005 Act 

Regulations require that

Design Factors for Slip Resistant Pedestrian Surfaces

High risk areas

Slip resistance

  • Consider the foreseeable contaminant, for example water, oil, grease
  • Consider specification of slip resistance when installed/ in final use conditions, rather than relying on ex-factory results. This should account for any changes due to installation
  • Consider specification of a wet Pendulum Test Value (PTV) of 36+ for the surface as installed/ in final use conditions - see Measuring Slip Resistance
  • Remember that r-ratings start at 9 (high risk) and go to 13 (low risk) - see Measuring Slip Resistance
  • Consider specification of validation testing to confirm the slip resistance of the finished pedestrian surface
  • Consider specification that the required slip resistance should last a stated number of years in normal use conditions
  • Floor surfaces with directional slip resistance should be fitted to provide slip resistance in the main direction of travel especially on walkways and stairs
  • See advice on assessing slipperiness, reviewing information from the supplier or published papers and measuring actual slip resistance at Identify Slippery Surfaces 
  • For step edges/ nosings, remember the importance of slip resistance and visual contrast 


  • HSL UK concluded “the ability to clean a typical hospital floor to a hygienic standard is not influenced by the slip resistance
  • In selecting a slip resistant floor, identify how it should be cleaned and ensure that information is communicated
  • The fact that a slip resistant floor requires more than a mop and bucket for cleaning should not prevent it's use
  • Consider the need to close sections of floor for wet-cleaning, for example, a fixed retractable cordon system


  • The surface should provide continued slip resistance for its anticipated life, allowing for predicted wear and tear

Availability of information

Heating, Ventilation and Drainage

  • Heating, ventilation and drainage should assist removal of surface water, contamination
  • Where necessary provide a fall to assist drainage


  • As required, provide shelter from the elements to reduce slip risk, e.g. entrance canopies, lobbied entrances, covered walkways

See Pedestrian Surfaces Further Information