King StarBoard® AS Logo in White

The Anti-Skid Marine-Grade Polymer Sheet


  • Bow Pulpits
  • Decking
  • Hatches
  • Ladder Steps
  • Swim Platforms
  • Swimming Pool Grating
  • Shower Floors
  • Stairways and Entry Ways

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King StarBoard® AS is an anti-skid, marine-grade, high-density polyethylene sheet. It is the product of a proprietary process called K-Stran™, the most advanced manufacturing process for superior flatness and consistency. King StarBoard® AS has a dot or diamond pattern on one side of the sheet and a matte finish on the other side. The special, high-friction anti-skid surface helps prevent slipping and promotes drainage. It is environmentally stabilized to withstand the harshest outdoor conditions. King StarBoard® AS will not rust, delaminate or rot when exposed to UV, humidity or water. It is ideal for a variety of high-traffic marine applications from decking and swim platforms to ladder steps where traction is critical. For maximum versatility, standard colors are made to coordinate with the original King StarBoard®. The polymer sheet never needs painting or refinishing, works like wood, and is easy to fabricate with common woodworking tools and techniques.

Standard Sheet Size

in:54” x 96”
mm:1371.6mm x 2438mm

Standard Gauges


Approximate Weight  54″ x 96″

lbs:90 lbs135 lbs180 lbs

Tolerance information:
Gauges 1/2″ up to 1” ± 5% | Length and width plus only at room temperature

Custom sheet sizes, gauges and colors available

PropertiesUnitsASTMNominal Values
Tensile Strength @ YieldpsiD638>4,100
Tensile ModuluspsiD638255,000
Elongation @ Break%D638>600
Elongation @ Yield%D6389.8
Flexural ModuluspsiD790185,000
Flexural Stress @ 5% StrainpsiD7903,810
Compressive Properties 10% StrainpsiD6954,000
DurometerShore DD224066
Tensile Impactft.lbs./in.2D1822115
Izod Impact Resistanceft.lbs./in.2 D2561.1
Brittleness Temp.ºC (ºF)D746<-76ºC (<-105ºF)
Vicat Softening Temp. ºC (ºF) D1525128ºC (262ºF)
Heat Deflection Temp. 66 psiºC (ºF) D648 99ºC (210ºF)
Screw and Nail WithdrawallbsD1761657 & 63
Slip Resistance (wet)SCOF-WetANSI B101.10.84

*All values are determined on specimens prepared according to ASTM.
Nominal values should not be interpreted as specifications.
King StarBoard® AS is made entirely from FDA and USDA approved material.
King StarBoard® AS meets ASTM D4976.
The raw material used to make King StarBoard® AS does not contain BPA’s or Phthalates.

*Note: Color accuracy can vary considerably on computer monitors and printers. Please consult your distributor for a product sample before making critical color choices. Specialty colors by special order only.

General Applications

  • Durable, sure-grip material for virtually every walk-on marine application.
  • Diamond or dot pattern on walking surface.
  • Standard King StarBoard® matte finish on reverse side.
  • Passes ASTM D2047 slip-resistant testing, scoring well above the industry requirement for ADA and OSHA.
  • Single homogeneous sheet will not rot or delaminate.
  • Available in large sheets 54” x 96”.
  • Custom sheet sizes available.
  • Available in eight King StarBoard colors to match or accent any gelcoat.
  • Unlimited custom/proprietary colors.
  • Precise tolerances ensure consistent color, thickness and density.
  • Environmentally stabilized for the harshest marine conditions.
  • Easy to clean and never needs refinishing.
  • Experienced boat builders and boaters know the King StarBoard® brand and trust it more than any other.
  • Has passed the Federal Motor Vehicle Standard 302 fire test required for use in motor vehicles, including motor homes.

King StarBoard® AS is wrapped in a reusable plastic sheet during storage. The plastic wrap will be on skids containing light colors or a mix of light and dark colors and is not necessary on skids only containing Black or Charcoal Gray sheets. Please maintain the plastic wrap while the King StarBoard® AS sheets are in inventory as added protection and, whenever possible, the plastic wrap should be shipped to the end user, too. The skids will be identified with a blue end label as shown below. As a further precaution we advise storing King StarBoard® AS in well ventilated areas of warehouses and not in areas where exhaust from fossil fuel fired equipment can accumulate. See Color Changes in Polyolefins – Pinking

*Note: Texture accuracy can vary considerably on computer monitors and printers. Please consult your distributor for a product sample before making critical texture choices. Specialty textures by special order only.

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