Some of you may ask what are the benefits of fiberglass versus some other methods of manufacturing marina dock boxes, pile caps, fire hose cabinets and other products. Below are some comparisons between fiberglass and plastic.

American Dock Boxes, Inc.


  • Fiberglass has a very good strength to weight ratio, actually greater than steel per pound
  • Fiberglass will withstand salt, chlorine, heat and the sun's UV rays
  • Best choice for electrical storage due to fiberglass being non-conductive
  • Gel coated fiberglass dock boxes require little or no maintenance
  • Fiberglass has excellent dimensional stability
  • Fiberglass is smooth and offers a superior appearance over plastic or wood

American Dock Boxes, Inc.


  • Although lighter than fiberglass, plastics are much less durable
  • Plastics are not as smooth in appearance as fiberglass
  • Plastics cannot tolerate extreme environments like fiberglass can
  • Plastic colors do not hold up over time exposed to salt air
  • UV light makes plastic brittle over time, leaving it vulnerable to cracking
  • Plastic just cannot compete with the strength of fiberglass

American Dock Boxes, Inc.

Fiber Glass Pile Caps

Square / Round / Octagonal
Our Pile Caps come in a variety of sizes and shapes to fit most any marina need. Constructed of long lasting fiberglass with a minimum thickness of 1/8" of an inch and finished off in a gel coat finish, these pile caps will give you years of trouble free service.

Fire Hose Cabinets / Fire Extinguisher Cabinets
A must for any marina, our cabinets are manufactured from high grade marine gel coat and resins, so you know your getting a product that will last a long time.

Trash Containers

We carry single 32 gallon and double 55 gallon trash containers. These units are built tough as well as practical. Standard features include stainless steel hardware, aluminum hinges, tough key lock handles, stainless steel support chains, high grade gel coat and resin and rubber bumper stops in lids to avoid slamming.