The Pros and Cons of Popular Pontoon Boat Decking Materials and Coverings

It all happens on the deck. Pontoon boats are the best places for playing, partying and spending time with friends and family. But you can't do anything without a solid deck under your feet.

Most pontoons are made from an aluminum frame. Sitting on top of the frame is the base that we call the deck. The deck is the flat support used to hold all components of the boat (including the passengers).

It's also where all the fun happens. So, let's dig a little deeper and look at all aspects of your toon's deck.

Whether you're looking for general pontoon knowledge or you want to know the ins and outs of pontoon boat decking for a future purchase, we can help you out here. 

An Overview of Pontoon Boat Decking

Here's what we'll review:

• The pontoon deck's purpose

• How the deck is attached

• Deck materials and the pros and cons of each

• Deck sizes

• Deck covering options

What Pontoon Boat Decking Is (and Its Purpose)

The purpose of a boat deck is to provide structure and support. It also acts as the attaching surface for the boat's components, like furniture and equipment.

In case you're a newbie pontoon aficionado or just plain curious, the basic definition of a ship's deck is this: "A fixed structure that covers a lower compartment or hull."

That said, the deck of a pontoon is a bit different right off the bat because it doesn't just cover the hull. It covers the pontoon logs, which form its unique support system. "Log" refers to that long aluminum tube keeping the boat afloat.

Since the decking provides structural reinforcement, it needs to be sturdy enough to protect your 'toon from storms, waves and instability at high speeds.

If your deck is strong, your 'toon is strong. That's why I recommend that every pontoon owner learn about their boat's deck and how to protect, maintain, repair and replace it (even those of us who are less savvy about mechanical things).

Above board, many of your precious equipment will be attached directly to the pontoon boat decking. Some likely components you'll have attached are:

• Railing with braces and gate

• Motor

• Sidelights

• Deck cleats

• Roof/covering

• Permanent seats/storage containers

• Ladder

Again, a sturdy pontoon deck will help you keep all of the above items in order. Last but not least, especially for those of us who love fun and flair, the pontoon deck provides the base that houses our supplies for daily outings and even pontoon boat camping.

Yep, now we're talking about extra storage, food, beverages, chairs, umbrellas, and stereo equipment. Everything aboard your 'toon depends on the decking.

How the Decking Is Attached: The Pontoon Logs

So, I realize you might have been intrigued when I noted that the deck is supported by, and attached to, pontoon logs.

This is integral to the design of any pontoon. It's what truly defines the 'toon. The logs not only support the deck, but they allow the boat to be buoyant. They allow the boat to travel on, and through, the water. Pontoon logs are made of aluminum because it's lightweight, durable and corrosion-resistant.

With better pontoon logs being designed each year, pontoon boats are stronger, more resilient and have more horsepower capability than ever before. Stronger logs = stronger decking = stronger 'toons.

For commercial boaters, pontoon logs are typically available in sizes from 18 feet to 26 feet in length. They come in a variety of placement options, including center, single, tri-toon and transom-mount (the last one's often custom-made).

How Does the Deck Attach to Pontoon Logs?

Good question. The answer is that it's either bolted or screwed. Let's look at the differences between these attachment methods:

• Bolting:  While bolting sounds like the choice of champions, it might not be the best idea. Before the bolt is inserted, a hole has to be pre-drilled for the bolt. That hole must be ever-so-slightly bigger than the bolt. You guessed it, the bolt may gradually loosen over time and cause water penetration. It might even break, and that wouldn't be good.

• Self-tapping screws:  Screws create strong attachments and are inserted through self-supported holes (that don't require pre-drilling). That can eliminate the issues you can get with bolts. Plus, an adhesive strip is often used with the screws. When the screw goes through that strip, it adds a self-sealing protection to prevent future movement and/or leaks.

Let's remember that a pontoon boat is subjected to a lot of stress when it hits waves and rough waters. That's why a strong reinforced structure is so important.

Over time, wear and tear can wreak havoc on your pontoon, so ensuring the quality of the hardware that holds the boat together should be your top priority.

The takeaway? If your pontoon deck is bolted, have the bolts checked regularly or learn how to do that inspection yourself. If they're loose, replace them.

What Size Pontoon Boat Deck Do You Need?

Which of these do you use your pontoon for?

• Fishing

• Family get-togethers

• Quaint gatherings and sun bathing

• Swimming and water sports

• Moving fast to tow water skiiers

• Cruising in larger bodies of water

• All of the above

Deciding the purpose of your pontoon can help you choose the best deck size. Have you decided? Okay.

First, know that for stability and balance, the deck is always longer than the pontoon logs. The length of decking will depend on the length of the logs underneath it.  

Pontoon Decking Lengths

• 19 feet or under:  This deck size is best for six to eight people and operates best in small and calm bodies of water.

• 20 to 22 feet: This deck size can accommodate about a dozen passengers. It operates best in calmer waters, too. It may be best for small to mid-size lakes and/or rivers.

• Over 22 feet:  Since this size deck is supported by longer logs, it can accommodate more people (probably up to about 15). But always make sure you check your boat manual for ideal passenger numbers and weight accommodation recommendations. It's never a good idea to operate any boat that exceeds the manufacturer's weight recommendations.

Pontoon Boat Decking Material Choices

The decking is typically made from one of these types of materials:

• Marine-grade plywood

• Treated plywood

• Aluminum

• Composite boards

• Vinyl boards

Let's look at each material type, along with the pros and cons.

1. Marine-Grade Plywood

Marine grade plywood comes in different types. It's not exactly what you might think. Yes, it's high-quality plywood that's most often used for boat flooring. But it isn't waterproof. It's just held together with waterproof glue.

Pros: Lightweight, strong and usually defect-free, this wood is constructed with waterproof glue so that water and high humidity won't cause it to deteriorate.

Cons: It's actually not waterproof or water-resistant wood. It requires the sealer to be water-resistant.

Most home improvement stores sell three-quarter-inch-thick sheets in 4' x 8' dimensions.

2. Treated Plywood

CCA-treated plywood has been treated with chemicals for resistance to water damage, decay and rot. Many people choose this material because it's readily available and easy to work with.

Pros: It has been used for years and resists water damage and rot. It's a good base for floor covering and is durable overall.

Cons: Heavy and shouldn't contact food or water meant for human consumption. It requires protective equipment when cutting or installing. It can't be burned, and it must be disposed of per state and federal regulations.

CCA-treated plywood can be found at most lumber stores and home improvement warehouses.

If you're interested in one of the above two options, the Engineered Wood Association (APA) offers guidelines on wood and what works best.

3. Aluminum

Aluminum is a popular pontoon deck choice because of its many pros.

Pros: Aluminum is lightweight, easy to install, strong, easy to clean and maintain, lighter than wood, rust-resistant, stain-resistant and doesn't need covering.

Cons: It may have to be custom-made, is costly and, due to variations in sizes and needs, the prices vary.

4. Composite Board

Composite board is usually a blend of wood and plastic. You can even find blends made of polyurethane foam, glass strands and woven fiberglass.

Pros: It's lightweight, maintenance-free, easy to work with, won't warp and is easy to clean.

Cons: Composite board can peel if pressure-washed or sanded. It needs more support from underneath, can develop mildew and mold stains and comes at a high cost.

5. Vinyl Boards

Vinyl plank flooring is gaining in popularity. The pros will tell you why.

Pros: It's strong, waterproof, skid-resistant, easy to install and looks like wood.

Cons: It can be more expensive.

Vinyl plank flooring can be found at most home improvement stores or lumber yards.

Many people prefer carpet because it softens footsteps, but today some types of vinyl can be just as quiet. Padding can be added beneath for an acoustical sound barrier and extra cushion beneath your step.

UV Resistance

If you're replacing old boat carpeting, take notice of the difference in the carpet's color. The color is much more saturated in areas where the sun never touched it (say, in a fold or tuck somewhere). That's because, after a while, the sun's UV rays exposed and faded the pigments of the carpet. Most modern vinyl flooring is UV-stabilized to resist this type of fading.

Better Warranty

Remember what I said about carpet damaging the deck after long moisture retention? Well, as manufacturers have begun to realize the damage, they're now offering a longer warranty if you install vinyl.

Companies and dealers are confident in vinyl's durability. They know it will make their decking last longer than if it had a carpet covering. Also, vinyl is typically glued so heavily and securely to the flooring that it creates a waterproof seal all on its own.

Textured Woven Vinyl

Textured vinyl can help kids (or anyone for that matter) avoid slipping by providing just enough traction underfoot. It's still breathable, but mold stains can still require cleanup. It adds just the right amount of friction underfoot to create a non-skid surface.

Textured vinyl no longer comes in just tiles or planks. Instead, textured woven vinyl flooring is available for order in a variety of widths, usually around 8 feet, and go anywhere from 10 to 30 feet in length. It's also much more aesthetically pleasing. You'll find that it now comes in a variety of textures and colors.

Vinyl floor covering is a commonly recommended upgrade for your pontoon. The expense is something that everyone needs to personally weigh against their budget.

Covering Your Pontoon Boat Decking

Now that I've gone over the most common pontoon decking materials, let's talk about coverings to protect and improve upon those materials. I've got all the most popular choices of pontoon flooring lined up for you here.

Carpet vs. Vinyl for Your Pontoon

Before you look at specific coverings, it helps to see the long-running carpet versus vinyl debate side by side. Carpet still has fans, especially among entertainers, but modern vinyl has closed most of the old gaps.

Carpet remains the budget pick, and if you choose it, stick with marine-grade carpet. If easy cleanup and protecting the deck underneath matter more, vinyl is the stronger choice for most owners.

1. Indoor/Outdoor Carpet

Indoor/outdoor carpet is a common pontoon deck covering. Often made of polyester, it offers practicality and easy maintenance. It also comes in many sizes and colors for the decorators on your crew. 

Better Boat pick

Mildew Stain Remover

Remove ugly mildew and mold stains from boat seats, covers, vinyl, plastic, fiberglass, canvas, rubber, tile, and grout.

View product

Pros: Indoor/outdoor carpet is easy to find and install, offers built-in UV protection, comes with marine-grade backing, is weather and fade-resistant and has a low pile height.

Cons: As with any carpet type of material, it can retain moisture and develop mildew stains. It also requires washing rather than just a quick hose down with boat soap.

Carpeting options vary depending on style and size. To remove mildew stains, make sure to regularly clean your pontoon boat carpet with cleaner and a cleaning brush.

Carpet is an excellent option for those on a budget. If you do decide to go this route, stick with marine carpet. Marine carpeting is designed to withstand the elements and is significantly more durable than regular carpeting.

But if this is your only reason for going with carpeting, try to think a bit more on the practical side. It is, after all, a boat. Unlike your living room floor, it will constantly get wet. Imagine the musty smell of a perpetually wet carpet.

Underdeck Rotting

When carpeting absorbs water and never quite dries, trapped moisture can lead to rot that harms the plywood underneath.

Maybe your deck is feeling a bit creaky, like there's softened wood, and you're thinking it's time for a re-decking job, so you might as well replace the floor covering.

Well... if there's currently carpeting on top, that's most likely what's happened. Over time, the carpet will weaken the decking materials, creating a less-than-sturdy floorboard.

Scalding Metal Rivets

In older boat models, there are metal rivets and snaps that, if you're not careful, can burn a bare foot on a hot day.

2. Artificial Turf Grass

Some people love artificial turf grass because it offers low maintenance and is practical for pets and children. Here's a few other reasons:

Pros: Easy to wash and maintain, pet-friendly, stain-resistant, UV-resistant and water-resistant.

Cons: Not attractive to some, uncomfortable to some for barefoot walking and sitting.

Turf for boat decks is sold in a range of roll sizes, so measure the deck before you order.

3. Interlocking Vinyl Floor Deck Covering

Interlocking vinyl tiles, the same kind often used on garage floors, offer a great alternative to pontoon boat carpeting.

They have lots of advantages, too. Let's look:

Pros: Easy installation and upkeep, rigid but can conform to your dimensions, well-draining, water-resistant, UV protection, air flow, strong and non-slip.

4. No Deck Covering

Since aluminum deck flooring doesn't require covering, you might save some money with aluminum. Vinyl and composite boards may not need covering either. It's a matter of personal preference and depends on your flooring choice.

If you have a wood pontoon deck, it may need covering. The good news? There are many choices available at many different cost levels. Who knew there was so much to consider with your pontoon boat decking?

Cleaning Pontoon Boat Flooring

After you've gotten that nice new flooring installed, you'll want to take care of it. No matter how hard you try, you're going to end up with stains, crumbs, blobs of sunscreen and even drips of ketchup on the floor.

Better Boat pick

No Slip Boat Deck Cleaner

Clean dirty dingy boat decks, floors, non skid surfaces, fiberglass, and vinyl.

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It's just the price you pay. But, rest assured, it's not the end of the world. Really, it's not. 

Indoor Outdoor Carpet: Use a vacuum just like you would on other carpet to keep sand, dirt and other detritus from ruining boat deck carpeting. This is a time when those little dustbusters really come in handy. 

Artificial Turf Grass: You can use a pressure washer to easily clean artificial turf grass on your boat deck. For stains on turf, try a deck cleaner such as No Slip Boat Deck Cleaner on a hidden corner first, then scrub and rinse well.

Vinyl Floor Deck Covering: Use a soap foam gun, which can be attached to a standard garden hose, to simply spray away any traces of dirt and scum. A chamois mop works equally well to scrub away stains. Better Boat Cleaning Wipes are a terrific way to quickly wipe away mishaps on the go.

No Deck Covering: With nothing on the deck but aluminum, it's super easy to spray it down with boat soap and rinse it off.

Editor's Choice: Boat Soap

Better Boat Boat Soap breaks down salt, grime, mud and everyday deck dirt, and it rinses clean without leaving a slippery film on your pontoon deck.

Vinyl is also much easier to maintain. All you have to do is give it a good hose down, even with a pressure washer, before or after winterization.

Just be sure to allow time for it to dry before placing and snapping on the cover. If you prefer to use a bit of solution, Better Boat's Boat Wash Soap quickly cuts through grime, stains and more. Use a deck brush with an extension rod handle to avoid hurting your knees and back.

Keep reading

Pontoon or Deck Boat? How They Compare in 4 Key AreasCover Story: A Comparison of 5 Leading Bimini Covers for Pontoon BoatsThe Complete Breakdown: Are Pontoon Boats Good for Fishing or Just Fun in the Sun?