Are Extruded Aluminum Decking Planks Non-Skid?

Non-skid extruded aluminum decking plank with ribbed texture for outdoor safety — Ribbed aluminum extrusion enhances outdoor deck safety

Outdoor decking can get slippery. You want safety and durability—without sacrificing looks. So how does aluminum measure up?

Extruded aluminum decking planks can be non-skid, but their slip resistance depends on surface texture, coating, and maintenance.

Let’s break down the factors that influence grip and how to ensure long-term safety underfoot.

What Textures Ensure Slip Resistance?

Extruded aluminum is smooth by default—but manufacturers can build in anti-slip features.

Slip resistance comes from surface ribs, textured coatings, and special finishes added during or after extrusion.

Textured aluminum surface improves slip resistance

Common Slip-Resistant Textures

Texture Type	Description	Benefits
Ribbed Profiles	Raised ridges in extrusion design	Water drainage, extra traction
Sanded Powder Coating	Grit embedded in powder paint	Durable and high-friction
Polyurethane Aggregate	Applied coating with sharp particles	Ideal for marine/bridge decks
Anodized Textures	Blasted or brushed anodizing	Rust-proof with subtle roughness

In wet areas or where ADA compliance is needed, combining ribbed geometry with a coated texture gives the best result.

Grooved or ribbed aluminum planks improve slip resistance.True

Surface geometry helps water run off and gives shoes more grip.

Mill finish aluminum offers good slip resistance when wet.False

Unfinished aluminum is very slippery, especially when wet.

What Tests Measure Plank Skid Rating?

To prove anti-slip performance, aluminum decking must pass specific tests.

Common methods include pendulum tests, ramp angle tests, and tribometer measurements under wet conditions.

Aluminum decking being evaluated for anti-slip performance

Key Slip Resistance Tests

Test Standard	Method Type	Key Output Metric
PTV (Pendulum Test)	Dynamic friction	PTV >?36 = low slip risk
DIN 51130 Ramp Test	Inclined platform	R9–R13 rating scale
ANSI A326.3	Tribometer (BOT)	DCOF ≥?0.42 recommended
SSR (Sustainable Slip)	After abrasion test	Measures wear over time

For public decks or walkways, expect PTV above 36 or an R10–R12 classification. These numbers reflect real-world wet traction.

Which Standards Apply to Outdoor Decking?

Outdoor flooring and elevated decks must meet national safety standards for slip resistance.

Most countries rely on ASTM, DIN, or ANSI standards to classify aluminum decking’s anti-slip safety.

Aluminum extrusion plank with standard-compliant surface finish — Aluminum decking designed to meet anti-slip standards

Outdoor Decking Standards

Region / Authority	Applicable Standard	Description
US (ANSI)	ANSI A326.3	DCOF for flooring under wet conditions
Europe (Germany)	DIN 51130	R-rating ramp angle test
Australia/New Zealand	AS 4586 / AS 4663	PTV + oil-wet ramp (R-rating)
UK	BS EN 16165	Pendulum test + surface classification
ASTM International	ASTM E303	US/UK compatible pendulum test method

If you’re building near pools, bridges, or marine docks, higher slip ratings are required by law.

How to Maintain Non-Skid Performance Over Time?

Even the best anti-slip surfaces can wear out. You’ll need a plan to keep things safe long term.

Regular cleaning, inspection, and re-coating keep aluminum planks slip-resistant for years.

Outdoor aluminum plank decking being cleaned and recoated for anti-slip maintenance — Regular maintenance of aluminum decking ensures non-skid safety

Maintenance Checklist

Task	Frequency	Purpose
Clean with mild detergent	Monthly	Remove dirt, algae, oils
Inspect coating wear	Quarterly	Check for grit loss or polishing
Recoat with texture layer	Every 1–3 yrs	Restore slip texture and protection
Ice/snow control	As needed	Use soft-edge melts, avoid sharp tools
Retest surface grip	Every 6–12 mos	Confirm compliance with slip standards

Avoid harsh chemicals that degrade coatings. Stick with mild cleansers, soft brushes, and water pressure below 1500?psi.

Cleaning aluminum decking helps maintain slip resistance.True

Removing buildup like algae and grime keeps the textured surface effective.

You don’t need to recoat aluminum decking once it’s installed.False

Traffic and weather wear down textures, so recoating is needed to restore grip.

Conclusion

Extruded aluminum decking can be highly slip-resistant—if it’s textured and maintained right.
Built-in ribs and anti-slip coatings enhance safety, especially in wet or public areas.
Use certified testing to confirm traction, follow recognized standards, and keep the surface clean and refreshed to ensure long-term safety.

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Are Extruded Aluminum Decking Planks Non-Skid?