10 Marine Board Use Cases

If you’re a boat owner, you might already be familiar with the benefits of marine board. A form of HDPE plastic, marine board is stronger than typical HDPE. In fact, it is formulated and designed to withstand the harsh weather associated with oceans, lakes, rivers, and such. Not only will it not rot, splinter, swell or peel, but it doesn’t require any painting, finishing, or maintenance. All of this makes it a popular choice for boats and docks.

But that is just the beginning of what is marine board used for. With that in mind, here are 10 marine board use cases to consider for your next project.

Boat construction

It’s important to note that marine board should not be used for structural purposes on a boat, including planking your wood boat, replacing your plywood deck, or installing an engine stringer, because its flexural and tensile strength-to-weight ratio is much lower than wood.  But there are plenty of other marine board uses when it comes to boat construction such as creating handles, hatches, and motor covers.

Outdoor furniture

Its durability and weather-resistant properties make marine board a great material for outdoor furniture, and not just those on boats. Cabinets, tables, benches, pergolas, and planters are just a few of the projects you can tackle with marine board. And you can feel free to leave these items outside year-round.

Boat parts

Any boat fittings that would typically be crafted with wood and metal can be fabricated with marine board. These include marine cabinets, furniture hatches, steps, cover rails, trims, and more.

Docks and piers

Marine board can withstand the harsh elements of the ocean, lakes, and rivers, so it is often used to build decks and piers that can last years and require little to no maintenance. In fact, it repels moisture and moisture-related issues, like mold, fungi, rot, and pest infestations. And it can also withstand most blunt force impacts.


Marine grade is commonly used in boat and RV components, including countertops, electric boxes, sink covers, bait boards, bait wells, and more. Outdoor buildings and outdoor storage options can also be outfitted with marine board components.

Fish tanks

Marine board can be used for a variety of fish tank equipment because of its durability when submerged in water. It’s especially beneficial in saltwater tanks.


Marine board uses also extend to swimming pool equipment, including steps, rails, and trims. In addition to all of its other benefits, the material also resists scratches, UV light, and moisture.


Create unique shelving on your boat with marine board. It is available in thicknesses of 1/4″, 1/2″, and 3/4″ and what you choose will depend on your project. For example, 1/2” flexes easily so it won’t work for shelves where heavy objects will be placed. Instead, opt for 3/4” material, which is much stiffer.

Shower floors

The fact that marine board can withstand high levels of moisture—therefore avoiding any chance of rot and mold—makes it an ideal material for shower floors, especially on boats.


The same goes for sink backsplashes, which also come into contact with plenty of water through use. Marine board resists mildew and odors so feel free to install it in your bathroom.

Now that you have an idea of what marine board is used for, it’s time to place your order. Acme Plastics offers marine board products in a variety of colors, shapes, and sizes, so don’t hesitate to contact our customer service team for guidance.