Alro logo Alro Steel was established in 1948 by Al and Robert Glick and has grown to include Alro Plastics, Alro Industrial Supply 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