What our Customers say…”FloorSlip is one of the best sources for information and services on Floor Safety and Floor Testing …and the Expert Witness reports for Slip Injury Lawyers are clear and unequivocal to assist in winning cases”


Cheap Floor Tests for Businesses and Lawyers available in In all Major UK Cities and nearby Towns including  Floor Testing  in Scotland – Aberdeen, Glasgow, Edinburgh, Perth, Stirling, Inverness and fife / Floor Safety Risk Assessments in North East England – Middlesborough, South Shields, Newcastle, Stockton on Tees, Darlington / Floor Pendulum Testing in North West England – Manchester, Lancaster, Liverpool, Runcorn, Preston, Blackpool, Blackburn Bury, Bolton, Warrington, Widnes, St.Helens (Cheshire) Birkenhead, Ellesmere Port, Chester, Crewe, Oldham, Stockport, Trafford Park. Rochdale, Congleton, Sandbach Macclesfield, / Floor Pendulum Tests in Wales in Cardiff, Newport, Swansea, Colwyn, Rhyl, Bangor / Pendulum Floor Slip Tests in Northern Central England – Sheffield, Leeds, Bradford (Yorkshire), Rotherham, Wakefield, / Slip Resistance Testing in East England in Hull, Humberside and Lincoln / BS7976-2 Pendulum Tests in the Midlands in– Nottingham, Derby, Rugby, Stoke, Stafford, Birmingham, Wolverhampton, Worcester, / Pendulum Flooring Tests in Central England – Northampton, Rugby, Derby, Oxford, Cambridge, Peterborough / HSE and BS7976 Approved Floor Testing in London and Home Counties – Watford, Milton Keynes, St.Albans, Cambridge, Newbury, Reading, Andover, Heathrow / Slip Injury Floor Tests in South England – Portsmouth, Brighton, Eastbourne, Southampton, Bournemouth, Salisbury, Isle of Man /  Floor Testing in Slip Accident Claims in South West England – Swindon, Bristol, Bath, Plymouth, Exeter, Falmouth, Cheltenham, Gloucester, Taunton, Warwick / Cheap Floor Testing in South East England – Dover, Margate, Rochester, Folkestone, Hastings, Tunbridge Wells,

FloorSlip Ltd – Head Office - Preston UK - Registered Limited Company 07757686

UK Specialists in H&S Approved Floor Pendulum Testing for Businesses and Expert Witness Services for Slip Injury Lawyers


Phone or Text    UK North  07774  32 32 67       UK South  07506  55 99 52 Email: - Info@floorslip.co.uk

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Members of the UKSRGUK Slip Resistance Group

News - BS 7976 is to be replaced by BS-EN 16165 - circa 2022

News - BS 7976 is to be replaced by BS-EN 16165 - circa 2022

Floor Slip Testing ‘R’ Ratings R9 - R13 - Information and FAQ’s

So what exactly is a Floor ‘R Rating’? The R9 to R13 Rating for Shod Feet (and an ABC Rating for Bare Feet) are values that the Health and Safety Executive (HSE), architects, floor specifiers, builders and YOU can use to determine the ‘slip resistance’ of a surface before purchasing flooring.

R ratings (SHOD Feet)

These R ratings relate to the typically non portable DIN Standard* Floor RAMP Test (the ‘R’ relates to the ‘R’ in Ramp Test). The Ramp Test works by a specific floor type to be tested being fixed to a ramp and oil (For Shod Feet) is applied to the ramp. The ramp is then raised and the human test subject walks in small steps backwards and forwards wearing boots until they slip on the floor (the tester is attached to a safety harness to prevent slip injury). The computerised readout then determines the R ratings based on the angle of slip. Note - the values start at R9 which is the LOWEST slip resistance R Rating (NOT at R1 as might be believed); the R Ratings then progress through increasing values to the HIGHEST floor slip resistance at R13.


Could I have a Ramp Test carried out?

You can BUT….

1. The test is VERY expensive

2. The test is specific to a floor surface and is intended more for floor manufacturers than the every day floors found in the workplace, shops, hotels, airports, swimming pools etc.

3. The Ramp Test arrives at a ‘range of result’s and is not particularly specific if you are trying to exactly judge existing floors fitted or to determine if new floor samples are suitable. If you really need a ramp test then we can advise further - Contact FloorSlip at info@floorslip.co.uk

The alternative to Ramp Testing and much more affordable is the portable On Site Floor Pendulum Test  on  site or via Off site Floor Sample Testing. The British Standard and HSE approved Pendulum test will give an effective and specific read across to the ‘range’ of R Values testing to determine equivalent R ratings (See table below). And the floor testing prices start from just £177

ABC Ratings (BARE Feet)

The ramp can also be used to assess floors for predominantly wet environments such as swimming pools or showers and an ‘ABC’ floor slip Rating is given. The test subject does the ramp test but in Bare feet and water only is applied to the surface as a contaminant. The LOWEST floor slip resistance Rating is A, the HIGHEST and best is C.

Image - Ramp Test - Ramp is raised until person slips and the angle is measured

Video of Ramp Testing

A very good short video (1 minute) explaining the ramp test can be found here, the video has English Subtitles - see the video of Ramp Testing to find R Ratings

Floor Slip R Ratings R9, R10, R11, R12, R13

Things to Consider in respect to Floor R Ratings

Floors Wear - Vinyls in particular wear rapidly (In months) - allow for a higher R Rating than ‘Just Enough’ especially in high footfall areas

Do NOT trust what R Rating is written on the box or specification leaflet. Flooring is manufactured in batches and the PTV for the same R Rating can vary widely in a batch - If in doubt - have a floor sample tested - prices start at just £185

Allow extra PTV for Slopes - Adjust your PTV value UP by 2 PTV for every 1 of slope

Have floors Pendulum Tested as soon as the contractors start to lay them - Do NOT wait until the floor is finished - that is too late. (What was sold to you isn’t always what you get!!)

FAQ’s - Floor Slip R Ratings

1. Can I have floors Pendulum Tested for the equivalent R Rating (or ABC Rating) without paying for expensive immobile Ramp Testing?

YES you can - HSE Approved floor slip pendulum test equipment to meet your duty of care and prevent slip injury claims A read across of R Ratings to Floor PTV* Values can be easily proven through the affordable  Floor Pendulum Test. Prices start from as little as £177 for off site Floor Sample Testing . Contact FloorSlip to find out more about prices for Pendulum Testing to BS 7976-2

*The UK HSE recommends a minimum Floor Test Value of 36 PTV when DRY, WET or CONTAMINATED *Be Warned - The HSE may only ‘recommend’ a minimum 36PTV (when a floor is wet and on a horizontal slope) but be aware we do know of circumstances where the HSE enforce this recommendation through the UK courts of law and many Slip Injury Lawyers are well aware of the rules if a floor is not safe!

Table of FloorSlip Resistance R Ratings

Table of Floor Slip Resistance R Ratings for  SHOD Feet

’R’ Ratings for SHOD FEET must conform to DIN 51130

* DIN is the equivalent to British Standards in the UK and is an accepted standard in the UK DIN stands for 'Deutsches Institut für Normung' or German Institute of Standardisation. It is the standard by which floor designers and architects must specify to in some countries to conform with building regulations and to offset possible accident injury.  

[Please scroll to the end of this page for originating source data from the HSE STEP DATA]

Table of Floor Slip Resistance ABC Ratings for BARE Feet

’ABC’ Ratings for BARE FEET must conform to DIN 51097. ABC Ratings are used for wet floor conditions where bare feet are the norm such as saunas, Jacuzzis, public showers, swimming pools etc.

[Please scroll to the end of this page for originating source data from the HSE STEP DATA]

WARNING - Floors Wear - Some wear very rapidly - Consider this when choosing R Values

Be wary when purchasing floors, especially in high footfall areas. Floor surfaces such as natural stone and matt in finish will have a high R Rating and high resistance to wear. But many man made flooring types such as Vinyl's and linoleum etc may initially have a reasonable R Rating but that floor R rating can, in some cases, especially at door entrances and corridors, be diminished through wear and within months. A 50% decrease in PTV is not uncommon so try aim at a high R Rating from the outset. If you have any doubts, then contact FloorSlip and we can Pendulum Test your floors to check for wear

WARNING -  it is often the case that the ‘R Rating’ found on flooring leaflets, websites and what is says on the packaging are often ‘over specified’ !

FloorSlip have tested many flooring types using the HSE approved Pendulum Test and found large differences between the floor samples we test and the ‘supposed’ R Ratings; the largest quantity are foreign imports which account for many UK tiles sold. Pendulum Test Values (PTV) of 40+ have been advertised when when the floor surface was wet - but only achieved just 12-15 PTV when Pendulum Floor Testing was carried out. The HSE expects a MINIMUM of 36 PTV when a floor is wet and horizontal and note this value must be adjusted UP for floor slopes by approximately 2 PTV for each 1 degree of slope (A 5 degree slope would require 36PTV + 10 PTV for the slope or 46 PTV when WET)

2. Which Floor ‘R’ or ‘ABC’ Rating should I pick?

In general, for shod environments, a minimum of R12 is recommended on a horizontal surface where the surface is ‘likely’ to become wet. However it is suggested to always use R12 to R13 on any floor slope for a SHOD Environment and a floor bare foot ‘C’ rating where slopes are evident in predominantly wet environments like swimming pools or showers. For floors likely to suffer from High Wear, pick the highest R Rating you can find.

3. What is wrong with using R9, R10 and R11?

The HSE expects that a floor surface will be Pendulum Tested and achieve a MINIMUM of 36 PTV when WET (Or Contaminated). But it will be evident from the Floor R Rating tables above that the R9 and R10 NEVER manage to achieve 36 PTV (Pendulum Test Value) and R11 has a range that starts at 34 PTV. Unfortunately, when manufacturers supply tiles, they may only state an ‘R value’ and no PTV Value which makes it very difficult to determine if the floor will be safe for the purpose intended of it….As a general rule of thumb when considering floors, the harder, smoother and ‘shinier’ the floors surface (For example a marble floor) the better the slip resistance when dry but far worse when wet or contaminated. Whereas a matt, rough or textured surface such as those found in kitchens and changing rooms will be lower pendulum test value when Dry but far better floor slip value when wet

4. How can I determine the floor I select with a rating of R11 or R12 will be suitable for my flooring application?

If the floor you select is an R11 floor slip resistance rating but no PTV is stated then we would suggest you get a sample of the floor tested. The floor sample testing starts from just £177 and this is a very small outlay to pay if your total outlay will be many thousands of Pounds, Euros or Dollars. FloorSlip conduct Floor Sample Testing across the world, all that is required is a sample measuring a minimum of 150mm x 150mm to be posted to our floor testing centres in the UK - contact us about Floor Sample Testing. If the flooring is rated R12 then provided no greater than 5 degrees of slope is expected, then there should be sufficient ‘PTV’ rating to allow for floor wear as well

5. My Floor is DRY ‘most the time’, why do I need a floor to meet WET conditions?

Please DO NOT think the floor will always be dry. A spill from a cup of coffee or even a squashed grape will cause a slip and a slip injury claim. For example.... Costa Coffee were fined £5 Million ($7.5 Million) in Dec 2011 for a slip injury claim after a Customer slipped on spilt coffee and hurt themselves….Don’t let that business be yours - have Pendulum Floor Testing - the only floor test that can protect you and that is recognised in  a court of law in a personal injury claim

6. What R Values should my floors be to avoid Personal Injury Claims?

Ideally R13 will meet just about all circumstances (Or a C Rating for wet areas such as swimming pools). A floor Rating of R12 will suffice provided there are not any excessively steep slopes and high wear. If in doubt Contact FloorSlip to discuss R Ratings (No charge) or have floor samples Pendulum Tested


7. I have heard of the Probability of Slip - what is that?

Friction is the resistive force to motion and is generally defined as ‘that force that acts between two bodies so as to resist their sliding over one another’. A floor with a high friction capability will provide enough ‘grip’ in most circumstances to prevent a person falling and the HSE / HSL has determined a ‘LOW probability of slipping on a floor’ rated at a minimum Slip Resistance Value (SRV) of 0.36 coefficient of friction (COF) is 1 in 1 million. That figure rapidly reduces though below the SRV of 36 as the HSE / HSL derived table below shows.

For ease of understanding 0.36 COF or SRV is the same as 36 PTV or Pendulum Test Value

Cefficient of Friction between foot and floor =

= Between 0.36 and 0.40 (x 100) = Pendulum Test Value of 36 1 in 1,000,000 Low Risk of Slip

= Between 0.34 and 0.38 (x 100) = Pendulum Test Value of 34 1 in 100,000 Moderate Risk

= Between 0.29 and 0.34 (x 100) = Pendulum Test Value of 29 1 in 10,000 Moderate Risk

= Between 0.27 and 0.32 (x 100) = Pendulum Test Value of 27 1 in  200 Moderate Risk

= Between 0.24 and 0.29 (x 100) = Pendulum Test Value of 24 1 in  20 High Risk

The simple graph below portrays the probability of slip as an exponential graph; values determined by PW Pye and HW Harrison in Floors and Flooring Performance  - available at http://www.brebookshop.com/samples/143388.pdf and the book is available at URL: https://www.brebookshop.com/details.jsp?id=627 for around GBP £50

Slip on Floor Probability Graph - Slips can be prevented by Pendulum Testing HSE-Slips-and-Trips-E-Learning-Package

HSE STEP Data (STEP - Slips and Trips E-Learning Package

The screen pint below is from historical data prior to 2021 that could be found on the HSE website and is the original source data used for the text above. The HSE have upgraded the website to present even more comprehensive data albeit at a nominal charge

URL: https://www.virtual-college.co.uk/resources/slips-and-trips