Floor slip resistance testing is the science of measuring the coefficient of friction (or resistance to slip accidents) of flooring surfaces, either in a laboratory (before or after installation) or on floors in situ.

The following table show the level of slip risk associate with different R-Numbers as defined by the German Ramp Test and DIN 51330. If a floor is likely to be wet then R13 is best. Only R12 or R13 should be considered for swimming pool surrounds or changing areas. R11 may be suitable for transitional areas of floor i.e. floors that can become wet despite efforts to keep it dry such as the entrance to a shopping mall or dry changing room floor. R10 may be suitable for areas of floor that can normally be kept dry and R9, the lowest value should only be considered for floors that can never become wet or have very few people using them.

  • DIN51130 for R9
    Slip Angle: 6 – 10 deg
    SlipAlert Test Value (STV): > 180
    Wet Slip Risk: High Risk
    Suitable for Dry Areas
  • DIN51130 for R10
    Slip Angle: 10 – 19 deg
    SlipAlert Test Value (STV):161 – 179
    Wet Slip Risk: Manageable
    Suitable for Areas kept largely dry


Having a non-slip or slip resistant finish is important for any flooring application, whether it be in the home, commercial premises or industrial warehouses and factories. The reason? Safety. The avoidance of any trip or slip incident depends greatly on a slip resistant floor, in a nutshell that’s why floor slip resistance tests are so important.

Do you have an elderly or young kid in your home? There are times when you mop your vinyl floor, and its damp, so choose LG Hausys Decoclick Vinyl Flooring, with a R10 slip resistance.