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: StarBoard® (King)



King StarBoard®

Size and Availability:

Sheet / Slab stock
- Thickness: 1/4”, 3/8”, ½”, ¾”, 1” and 1-1/2” thick
- Sheet size: 54” x 96” standard
- Sheet size: 48” x 96” available in 1-1/2” thick ONLY.

Starboard rods and sheets  Starboard rods
King StarBoard® is the original marine-grade polymer and the industry standard. It is the product of a proprietary process called K-Stran™, the most advanced manufacturing process available for producing consistently flat continuous sheets.

King StarBoard® is environmentally stabilized to withstand the harshest marine conditions. It will not rot or discolor like teak and other solid woods, and it will not delaminate like wood laminates. King StarBoard® is easy to work with using standard woodworking tools, and design changes are a snap. In addition, the installed cost of King StarBoard® is less than teak, other common marine woods, and fiberglass. Plus, our large sheet sizes maximize your yield. Boat buyers appreciate King StarBoard’s® low-maintenance finish. Repair and refinishing due to weathering and decay are eliminated, and cleaning is easy.

King StarBoard® has a handsome matte finish on both sides to hide scuffs and scratches that would show on glossy textured sheets or acrylics.

Add Antimicrobial Protection:

King MicroShield® is a new kind of antimicrobial protection upgrade now available in many of King Plastic Corporation’s polymer sheets, slabs and massive shapes.

Learn more about King MicroShield®


  • Extremely flat and consistent sheets
  • Environmentally stabilized for harsh sun & tough marine environments
  • Will not rot, swell, splinter or delaminate when exposed to water
  • Easy to fabricate with standard woodworking tools
  • Durable matte-textured surface on both sides
  • Easy to clean and never needs refinishing


  • Hatches and doors
  • Grab rails and handles
  • Step and dock boxes
  • Rod and cup holders
  • Countertops
  • Chairs
  • Tray tables