Knowledge

Slip Testing Explained

What slip resistance testing is, the Australian Standards that govern it, and what the P1–P5 ratings mean for your property.

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The Basics

What is slip resistance testing?

Slip resistance testing measures the coefficient of friction of a floor surface — how much grip it provides underfoot, particularly when wet. The result is expressed as a P-rating (P1 to P5) for pendulum testing. NATA-certified reports are accepted by courts, insurers, building certifiers and government authorities across Australia.

The Standards

AS 4586 vs AS 4663

AS 4586 classifies new pedestrian surface materials — used at product-selection and construction-handover stage. AS 4663 assesses existing in-service surfaces — used for audits, maintenance and liability assessment. AS 1428.1 governs luminance contrast for accessibility.

Classification

P-Ratings: P1 to P5

P0 – P1
Low slip resistance
Suitable for dry internal areas only. Not appropriate for wet or external pedestrian surfaces.
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P2 – P3
Moderate slip resistance
Common minimum for many internal commercial floors. P3 is widely required for transitional and wet-prone areas.
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P4
High slip resistance
Required for many external ramps, communal wet areas and high-traffic commercial spaces under the NCC.
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P5
Very high slip resistance
Required for high-risk wet areas such as pool surrounds, ramps and commercial kitchens.
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FAQ

Common
Questions

Answers to the questions we hear most.


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Slips, trips and falls are a leading cause of public-liability claims in Australia. Demonstrating that your floors meet the relevant Australian Standard is central to compliance, insurance and defending liability claims.
Our technicians use a calibrated wet pendulum to measure slip resistance in-situ to AS 4663, sampling representative areas of the floor. Results are compiled into a NATA-certified report.
Reports are delivered within 24 hours of the site visit as standard.

Ready to ensure your floors comply?

NATA-certified reports within 24 hours. Australia-wide.

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