R11 Slip Rating
Slip-resistance classification under DIN 51130 for surfaces with moderate slip risk, suitable for exposed decks, balconies, and ramps in residential settings.
DIN 51130 ramp-test classification denoting slip angles of 19 to 27 degrees with oil contamination. R11 is a common requirement for external decks, balconies, ramps, and commercial entries exposed to rain. Composite decking products often achieve R11 through textured or grooved surfaces, whereas smooth hardwood decking typically rates lower when wet. Australian compliance for slip resistance is more often expressed via the AS 4586 P-rating wet pendulum test (P3 to P5) rather than R-rating, but importers and manufacturers frequently provide both. For buyers, R11 is a reasonable benchmark for residential outdoor decking and pool surrounds, but check council and project requirements: aged-care, commercial, and ramp surfaces may require P5 or R12. Always confirm the test report version and date.
Values and references on this page are indicative and drawn from common industry sources. Always verify the current AS/NZS standard, manufacturer data sheet or NIAA policy publication before relying on figures for design, specification or compliance work.
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