King StarLite® XL Logo in White

The Lightweight Marine-Grade Cellular Sheet


  • Cockpit Covers
  • Deck Component and Equipment Mounts
  • Doorstops and Thresholds
  • Electronic Mountings
  • Ladder Steps
  • Recess Hatches and Bait Well Covers
  • Tackle Centers

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King StarBoard® XL is a lightweight, marine-grade, cellular high-density polyethylene sheet that is up to 30% lighter than the original King StarBoard®. It is the product of a proprietary process called K-Stran™, the most advanced manufacturing process for superior flatness and consistency. King StarBoard® XL has a matte finish on both sides of the sheet. It is environmentally stabilized to withstand the harshest outdoor conditions. King StarBoard® XL will not rust, delaminate or rot when exposed to UV, humidity or water. It is ideal for a variety of marine applications from boat components to equipment mounts, and looks good enough to use in high-visibility applications where structural strength and a finished edge are not important. 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.

King StarBoard XL is upgradable to King MicroShield® with an advanced antimicrobial technology for protecting the product surface against stain and odor causing bacteria, algae and fungi.*

For more information about King MicroShield®, please visit product page.

Disclaimer: King MicroShield® may affect color.

Standard Sheet Size

in:60″ x 96″
mm:1524″ x 2438″

Standard Gauges


Approximate Weight

lbs:40 lbs61.5 lbs80 lbs120 lbs

Tolerance information:
Gauges 1/4″ up to 3/4” ± 5% | Length and width plus only at room temperature

Custom sheet sizes, gauges and colors available

PropertiesUnitsASTMNominal Values
Tensile Strength @ YieldpsiD638>3,300
Tensile ModuluspsiD638165,000
Elongation @ Yield%D6389.6
Flexural ModuluspsiD790130,000
Flexural Stress @ 5% StrainpsiD7902,990
Compressive Properties 10% StrainpsiD6952,910
DurometerShore DD224064.9
Izod Impact Resistanceft.lbs./in.2 D2561.4
Heat Deflection Temp. 66 psiºC (ºF) D648 87ºC (188ºF)
Screw Holding StrengthlbsD1761325

All values are determined on specimens prepared according to ASTM.
Nominal values should not be interpreted as specifications.
King StarBoard® XL is made entirely from FDA and USDA approved material.

  • Unique (closed-cell) cellular marine-grade sheet.
  • Weighs up to 30% less with the same surface finish as King StarBoard®.
  • Ideal for fabricating any boat part where high structural strength or a finished edge is not required.
  • Precise tolerances ensure consistent color, thickness and density–even for thicker gauges.
  • Holds staples and screws securely.
  • Environmentally stabilized for harsh sun and tough marine environments.
  • Will not rot, swell, splinter or delaminate when exposed to humidity or water.
  • Resists odor, even in wet environments.
  • Easy to clean and never needs refinishing.
  • Matte-textured finish on both sides.
  • Easy to fabricate using standard woodworking tools.
  • Available in eight standard King StarBoard® colors to match or accent any gelcoat.
  • Unlimited custom/proprietary colors.
  • Forms easily for smooth curves.
  • Available in large sheets up to 60” x 96”
  • Custom sheet sizes available.
  • Shipped with a protective masking on one side.
  • Proven on thousands of boats and yachts.
  • 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.

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