Alro logo Alro Steel was established in 1948 by Al and Robert Glick. Today, Alro is comprised of Alro Steel, Alro Metals, Alro Plastics and Alro Metals Outlet.

Alro Plastics Product: King StarBoard® XL

Starboard XL


King StarBoard® XL Colors

Size and Availability:

Sheet / Slab stock
- Thickness: 1/4”, 3/8”, 1/2” and 3/4” thick
- Sheet sizes: 60” x 96”

Starboard XL  Starboard XL
King StarBoard® XL is 100% virgin polymer, marine-grade cellular material with an excellent surface finish that looks good enough to use in high-visibility applications where structural strength and a finished edge are not important. King StarBoard® XL sheets are up to 30% lighter in weight than King StarBoard® and are made with the same textured surface and colors for a perfect match.

King StarBoard® XL is upgradable to King MicroShield® with an exclusive antimicrobial additive from Biosafe®, the latest 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.


  • Extremely flat and consistent sheets
  • Environmentally stabilized for harsh sun & tough marine environments
  • Unique (closed-cell) cellular marine-grade sheet
  • Weighs up to 30% less than King StarBoard standard sheet
  • Holds staples and screws securely
  • Will not rot, swell, splinter or delaminate when exposed to water
  • Durable matte-textured surface on both sides
  • Resists odor, even in wet environments
  • Easy to clean and never needs refinishing


  • Cutting boards
  • Deck components
  • Equipment mounts
  • Cockpit covers
  • Tackle centers
  • Bait well covers
  • Doorstops
  • Thresholds