Ultimate Guide to Pontoon Boat Covers: Protection That Extends the Life of Your Boat
Introduction
You spent a small fortune on your Bennington, Manitou, Barletta, or Avalon, and now it’s sitting in your driveway—baking in the summer sun, collecting leaves in the fall, and holding rainwater that’s slowly turning your seats into a science experiment.
TL;DR
A pontoon boat cover isn’t just a piece of fabric—it’s the single most important investment you can make to protect your boat. UV rays destroy upholstery, moisture creates mold and mildew, and debris stains and scratches surfaces. The right cover—whether a custom-fit mooring cover, a storage cover, or a trailerable cover—saves you thousands in repairs and keeps your boat looking showroom fresh. This guide breaks down cover types, materials, fit considerations, and maintenance so you can choose the right protection for your specific Bennington, Manitou, Barletta, or Avalon and your specific storage situation.
Key Takeaways
- Custom Fit Matters: Off-the-shelf “universal” covers never fit right. They pool water, flap in the wind, and damage the very surfaces they’re meant to protect.
- Material Is Everything: Sunbrella acrylic fabric breathes, blocks UV, and lasts 5-10 years. Polyester covers are more affordable but don’t breathe as well.
- Mooring vs. Storage vs. Trailerable: Each cover type serves a different purpose. Using the wrong one for your situation leads to premature failure.
- Support Systems Are Critical: A cover without proper support poles and straps will sag, pool water, and eventually tear.
- Ventilation Prevents Mold: Trapped moisture is the enemy. Look for covers with built-in vents or add them yourself.
The Cover Conversation Nobody Wants to Have
I learned about pontoon covers the hard way. My first season, I bought a cheap universal cover from a big-box store. It was gray, it was stretchy, and it sort of fit over my Avalon. I figured I was doing the right thing.
That winter, I peeked under the cover to grab a life jacket. What I found made my stomach drop. The cover had sagged in the middle, creating a giant pool of water that eventually seeped through. Underneath, my seats were covered in black mold, the carpet was damp and smelled like a swamp, and the aluminum rails had white oxidation spots where moisture had been trapped for months.
“A marina owner I know puts it bluntly: ‘A bad cover is worse than no cover. At least with no cover, things dry out. A bad cover traps moisture and creates a greenhouse effect that destroys boats.'”
That repair bill was painful. Now I treat covers with the respect they deserve. Let me save you from making the same mistake.
Types of Pontoon Boat Covers: Which One Do You Need?
Not all covers are created equal. The right cover depends entirely on how you use your boat and where you store it.
1. Mooring Covers
These are custom-fit covers designed to stay on the boat while it’s docked or moored in the water. They typically snap or strap to the boat’s exterior and are cut to follow the contours of the windshield, seats, and rails.
- Pros: Excellent fit; protects from sun, birds, and spray; usually includes vents for airflow.
- Cons: Not designed for trailering; can flap at highway speeds; more expensive than universal options.
- Best For: Boats kept in a slip or on a lift during the season.
2. Storage Covers
These are designed for boats stored on trailers or in dry storage. They’re usually full coverage covers that extend down over the rub rail and often cover the outboard motor.
- Pros: Full protection from UV, dust, and debris; often more breathable than mooring covers; good for off-season storage.
- Cons: Not for use on the water; may not fit as snugly as a mooring cover.
- Best For: Winter storage, long-term storage, or boats parked in driveways or storage lots.
3. Trailerable Covers
These are heavy-duty covers designed to stay on the boat while you’re towing. They’re made from tougher materials, have reinforced areas at wear points (windshield corners, rub rails), and include more tie-down straps to prevent flapping.
- Pros: Protects during transport; eliminates need to remove cover before trailering; saves time.
- Cons: More expensive; heavier; can still cause minor chafing if not fitted perfectly.
- Best For: Boaters who trailer to different lakes and want protection during travel.
4. Console and Cockpit Covers
These are smaller covers that protect specific areas—like the helm console, seats, or bow area—while leaving other parts exposed.
- Pros: Affordable; easy to put on and remove; good for quick protection during the day.
- Cons: Doesn’t protect the whole boat; rain can still get into uncovered areas.
- Best For: Day-use protection when the boat is docked but you’re nearby.
Cover Materials: What to Look For
The fabric your cover is made from determines how well it protects, how long it lasts, and how much maintenance it requires.
Sunbrella Acrylic
This is the gold standard for marine covers. Sunbrella is a woven acrylic fabric that’s breathable, UV-resistant, and water-repellent (not waterproof—which is actually a good thing).
- Breathability: Air passes through, preventing mold and mildew from forming underneath.
- Durability: Lasts 5-10 years with proper care.
- Water Resistance: Repels water, but any moisture that gets through can evaporate because the fabric breathes.
- Cost: Premium pricing, but worth every penny.
- Pro Tip: Sunbrella fabric can be re-waterproofed with a product like 303 Fabric Guard every few years to maintain water repellency.
Polyester with PVC Coating
These are often called “vinyl” covers or “fitted” covers. They’re waterproof rather than water-repellent.
- Waterproof: Water beads up and runs off—if the cover is properly supported.
- Durability: 3-5 years typically. UV eventually breaks down the coating.
- Breathability: Poor. Moisture trapped underneath has nowhere to go, leading to mold.
- Cost: Mid-range pricing.
- Warning: If you choose a waterproof cover, you absolutely must have support poles to prevent pooling. Standing water will find a way through.
Polyester with Polyurethane Coating
These are lighter-weight covers often found on “semi-custom” or universal covers.
- Water Resistance: Moderate. Coatings degrade faster than PVC.
- Durability: 2-3 seasons in full sun.
- Breathability: Minimal.
- Cost: Budget-friendly.
- Best For: Temporary use or covered storage where UV exposure is limited.
Sharkskin and Other Polyester Blends
These are breathable, lightweight fabrics that are popular for mooring covers.
- Breathability: Excellent.
- UV Resistance: Good, but not as long-lasting as Sunbrella.
- Cost: Mid-range.
- Best For: Mooring covers in moderate climates.
The Support System: Poles, Straps, and Fit
Even the best cover will fail without proper support. Here’s what you need to know about keeping your cover where it belongs.
Support Poles
These are adjustable poles that go under the cover to create a peak or ridge that allows water to run off.
- Aluminum poles with rubber feet are standard. The feet rest on the floor or seats, and the pole pushes up against the cover from underneath.
- For larger pontoons, you may need multiple poles—one for the bow, one for the cockpit, and one for the stern.
- Some covers come with built-in pole pockets that hold the poles in place and prevent them from poking through the fabric.
Strap Systems
Ratchet straps or buckles around the perimeter of the cover keep it tight against the boat.
- Integrated straps that cinch under the trailer or around the rub rail are better than simple elastic hems.
- Pro Tip: Check strap tension periodically. Wind and temperature changes can loosen straps, allowing the cover to flap and chafe.
Snaps and Fasteners
Many mooring covers attach with snaps mounted around the boat’s exterior. These provide a clean, tight fit but require snaps to be installed on the boat (usually at the factory or by a canvas shop).
- Self-adjusting snap systems use flexible tracks that allow the cover to expand and contract with temperature changes.
Fit Matters More Than You Think
A cover that’s too loose will flap in the wind, causing chafing that wears through the fabric and scratches your boat’s finish. A cover that’s too tight will put stress on seams and snap fasteners.
- Custom covers are cut specifically for your boat’s make, model, and year. They fit like a glove.
- Semi-custom covers are cut for general size ranges (like “22-24 foot pontoon”) and have adjustable straps to tighten the fit. They’re better than universal but not as good as custom.
Matching Covers to Your Pontoon Brand
Different pontoon brands have different layouts, rail heights, and accessory placements. A cover that fits one brand perfectly may not work for another.
Bennington
Bennington offers factory mooring covers that are custom-cut for each model. These covers are designed to work with Bennington’s stern seats, ski tow bars, and optional Bimini tops. If you’re buying aftermarket, look for covers specifically labeled for Bennington models—the bow shape and rail height are distinct.
Manitou
Manitou’s sporty designs often include raised helm platforms and different rail configurations. Factory covers are available and are worth considering because they accommodate the unique V-Toon bow shape. For aftermarket, verify that the cover has extra height for the helm area.
Barletta
Barletta’s luxury pontoons often come with premium factory covers made from Sunbrella or similar high-end materials. These covers are designed to fit around Barletta’s oversized seating, optional rear loungers, and power Bimini tops. If your Barletta didn’t come with a cover, buying the factory cover is usually the best option—these boats have too many custom features for a one-size-fits-all solution.
Avalon
Avalon builds versatile pontoons with a range of floor plans. Factory covers are available and are a safe bet. For aftermarket, look for covers that specify Avalon compatibility and pay attention to whether your boat has raised helm seating, fishing seats, or other features that affect cover fit.
Comparison Table: Best Pontoon Boat Covers
| Product/Model | Material | Type | Key Features | Approx. Cost | Best For |
|---|---|---|---|---|---|
| Sunbrella Custom Mooring Cover | Sunbrella acrylic | Mooring | Custom-fit to model, vents included, UV-resistant, breathable | $1,200 – $2,500 | Boats kept in slips; owners wanting premium protection |
| Carver Trailerable Cover | Polyester with PVC | Trailerable | Reinforced at wear points, heavy-duty straps, fits over rails | $600 – $1,200 | Boaters who trailer frequently and want protection during travel |
| Commercial Sewing Storage Cover | Sharkskin polyester | Storage | Breathable, lightweight, full-length coverage with motor cover | $500 – $900 | Off-season storage; boats on trailers in covered or uncovered storage |
| Empire Custom Fit Cover | Polyester blend | Semi-custom | Adjustable strap system, fits specific size ranges, pole and vent kit included | $300 – $600 | Budget-conscious owners wanting better fit than universal |
| Budge Universal Cover | Polypropylene | Universal | Elastic hem, tie-down straps, basic UV protection | $100 – $250 | Temporary protection; boats stored indoors or under roof |
| Oceansouth Heavy Duty Cover | 600D polyester | Semi-custom | Reinforced corners, built-in motor cover, ratchet straps | $400 – $700 | Mid-range option for trailered boats |
Real-World Impact: Cover Horror Stories and Successes
Let’s look at what happens when you choose wisely—or don’t.
Scenario 1: The Sunbrella Success
You bought a Sunbrella custom mooring cover for your Bennington. It fits perfectly, with support poles creating a gentle peak that sheds rain. The fabric breathes, so condensation evaporates. Three years later, you remove the cover and your seats still look brand new—no fading, no cracking, no mold. Your boat has held its value, and you’ve never had to replace upholstery.
Without a quality cover: Your seats are sun-bleached and cracking. The stitching on the vinyl is failing. You’re looking at a $3,000 upholstery replacement job.
Scenario 2: The Trailerable Cover That Travels
You trailer your Manitou to different lakes every few weekends. You invested in a Carver trailerable cover. It stays on during the 2-hour highway drives, with reinforced patches at the windshield corners and tight straps that prevent flapping. You arrive at the ramp, remove the cover in minutes, and launch. Your boat is clean and protected the whole trip.
Without a trailerable cover: You either tow uncovered (exposing your boat to road debris, bugs, and UV) or you wrestle with a mooring cover that wasn’t designed for highway speeds and ends up torn by the time you arrive.
Scenario 3: The Storage Cover That Saved a Winter
You store your Avalon on a trailer in your driveway over the winter. You bought a Commercial Sewing Sharkskin storage cover that breathes and covers the entire boat including the motor. You used support poles to create a ridge, and you check the straps after heavy snow to make sure tension is good. In the spring, you uncover a boat that looks exactly as it did when you put it away.
Without proper storage: A cheap universal cover pools water, freezes, and tears. Leaves and moisture get trapped. Your carpet mildews, your seats grow mold, and you spend your first nice weekend cleaning instead of boating.
Cover Material Comparison
Here’s how the major cover materials stack up across the factors that matter most to pontoon owners.
Cover Maintenance: Making Your Investment Last
A quality cover is an investment. Here’s how to make sure it pays off for years.
Cleaning
- Use mild soap (like 303 Cleaner or Dawn dish soap) and soft brush to remove dirt and bird droppings.
- Never use bleach or harsh detergents—they break down fibers and coatings.
- Rinse thoroughly and let the cover dry completely before storing.
Re-Waterproofing
Sunbrella and other breathable fabrics lose water repellency over time. Restore it with 303 Fabric Guard:
- Clean the cover first.
- Apply in a well-ventilated area.
- Reapply every 1-2 years depending on sun exposure.
Storage
When the cover is off the boat:
- Store it dry. Never fold a damp cover.
- Use a mesh storage bag to allow airflow.
- Keep it in a cool, dry place away from rodents (they love nesting in folded canvas).
Inspections
Check your cover regularly for:
- Chafing: Look for worn spots where the cover rubs against rails, windshield corners, or cleats. Add chafing patches or reposition straps.
- Seam separation: If threads are pulling out, repair early before the seam fails completely.
- Pole wear: If support poles are pushing against the fabric without a pocket or pad, add a pole cap or a piece of marine vinyl to distribute pressure.
Common Cover Mistakes (And How to Avoid Them)
Mistake #1: No Support Poles
“I don’t need poles—my cover fits tight.”
Reality: Every cover needs support. Without a peak or ridge, water pools. Pooling water adds weight, stretches fabric, and eventually finds a way through. Use the poles.
Mistake #2: Tying Too Tight
“I’ll just crank these straps down so it doesn’t move.”
Reality: Over-tightening puts stress on seams and snap fasteners. It can also distort the boat’s rails or windshield frame. Snug is good. Guitar-string tight is bad.
Mistake #3: Ignoring the Motor
“I only need to cover the boat.”
Reality: Your outboard motor is expensive and exposed. UV damages cowling, decals, and rubber components. Get a cover that includes motor coverage or buy a separate motor cover.
Mistake #4: Storing a Wet Cover
“It’s raining, so I’ll just fold it up and put it in the locker.”
Reality: A folded wet cover becomes a mold farm. Let it dry before storage, or hang it to dry as soon as you get home.
FAQ Section
1. What’s the difference between water-repellent and waterproof covers?
Water-repellent fabrics (like Sunbrella) shed water but allow moisture vapor to escape. Waterproof fabrics (like PVC-coated polyester) block water completely but also trap moisture underneath. For most boats, water-repellent and breathable is better because it prevents mold and mildew.
2. How do I measure my pontoon for a cover?
For custom covers, use your boat’s make, model, and year. For semi-custom, measure overall length (from bow tip to stern), beam width (widest point), and rail height (from deck to top of rail). Also note any obstructions like Bimini tops, ski tow bars, or fishing seats.
3. Can I trailer with a mooring cover on?
Generally, no. Mooring covers are not reinforced for highway speeds. The wind will cause flapping that damages both the cover and your boat. Use a trailerable cover if you need protection during transport.
4. How long should a quality pontoon cover last?
A Sunbrella custom cover lasts 5-10 years with proper care. PVC-coated polyester covers typically last 3-5 years. Universal or budget covers may only last 1-2 seasons in full sun exposure.
5. Do I need a cover if my boat is stored indoors?
Yes, even indoors. Dust, dirt, birds (if stored in a barn or open building), and accidental contact all cause damage. A lightweight storage cover or dust cover protects your upholstery from things you don’t see until it’s too late.
6. How do I prevent mold under my cover?
Use a breathable cover (Sunbrella or Sharkskin). Ensure proper ventilation—many covers have built-in vents. Use support poles to create airflow underneath. And never cover a damp boat—let it dry thoroughly before putting the cover on.
7. Can I repair a tear in my boat cover?
Yes, small tears can be repaired. Use marine-grade fabric patch kits or take the cover to a canvas shop for professional repair. For Sunbrella fabric, a shop can sew in matching material. Don’t use duct tape—it leaves residue and fails quickly.
References & Further Reading
- Sunbrella Fabrics: Care and Cleaning Guide – Official instructions for maintaining acrylic marine fabrics.
- BoatUS: Boat Cover Buying Guide – Comprehensive advice on choosing the right cover for your needs.
- 303 Products: Fabric Guard Application Instructions – How to restore water repellency.
- National Marine Manufacturers Association (NMMA): Boat Storage Best Practices – Guidelines for winterization and storage.
Your pontoon is more than a boat—it’s where memories happen, where kids learn to swim, where sunsets are enjoyed with friends. Protecting it with the right cover isn’t just about saving money on repairs. It’s about keeping that boat ready for the next adventure, whenever it comes.
What’s your cover story? Have you learned the hard way, or did you get it right from the start? Drop a comment below and share your experience with fellow Bennington, Manitou, Barletta, and Avalon owners!
