Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
10 Best Boat Trailer Side Bunks for 2025: Top Picks Reviewed
When transporting your boat, having reliable side bunks on your trailer is essential. Not only do they support your boat’s hull and ensure safety during transport, but they also play a critical role in making your launch and retrieval process seamless. In 2025, Amazon offers an extensive selection of the best boat trailer side bunks that cater to various needs and preferences.
In this article, we’ll take an in-depth look at the top 10 products available on Amazon, analyzing their features, pros, and cons. This can make your choice easier when you’re in the market for the best boat trailer side bunks.
1. CE Smith 27580A Boat Trailer Side Bunks
−$19.90
- Sturdy Trailer for Guiding Boat: Properly center load your boat even in wind or side current conditions with this bunk board, keeping your trailer sturdy
- Adjustable Boat Bunk Board: Boat trailer with 21” height with adjustment out to 13” from the frame on each side; can be mounted for extra height
- Durable Boat Accessories: Boards made from untreated Southern yellow pine and covered with high-grade marine carpet fabric
- Hardware Included for Easy Use: Comes complete with mounting hardware; fits frames up to 3" wide and 4.25" high
- CE Smith Marine Accessories: CE Smith is committed to providing quality trailer and fishing products with responsive customer service
Best for: Heavy-duty support
The CE Smith 27580A features robust, marine-grade construction that includes a durable carpet designed to protect your boat’s finish. Its heavy-duty support is ideal for larger boats, making loading and unloading a breeze.
Pros:
- Excellent build quality
- Marine-grade materials
- Non-slip surface
Cons:
- Installation may require special tools
- Carpet can wear over time
2. Athena Padded Boat Trailer Side Bunks
- Polyester Carpet: Polyester marine grade carpet is gentle on boats and tough enough to withstand harsh aquatic elements, and they will prevent the boat from being scratched.
- Load Your Boat: Keep small boats centered during loading with Boat Trailer Bunk Guide; Load your vessel onto high beam, box, or c-channel trailers.
- Flexible Installation: Boat trailer guide poles U bolts can be installed straight or crossed and support frames clamp to the top or the bottom of your trailer frame.
- Heavy-Duty Boat Trailer Guides: Heavy-duty steel construction is designed for marine use; Rely on the boat trailer side bunks to keep your ship securely in place despite heavy wind or bumps.
- Package Contents: Package includes 2 carpeted bunk board guides and 2 mounting frames; U bolts and installation hardware included.
Best for: Enhanced protection
These padded side bunks from Athena are designed to cradle your boat securely. The padded surface minimizes wear and tear, ensuring a cushioned fit. Perfect for smaller boats, they offer great value and ease of installation.
Pros:
- Extra cushioning for boat protection
- Easy installation
- Lightweight design
Cons:
- May not hold larger boats as securely
- Padded material may not last long
3. Waterhead Boat Trailer Side Bunk Kit
- [Effortless Boat Loading]: Keep your small boat perfectly centered during loading with the Boat Trailer Bunk Guide. Designed for compatibility with high beam, box, or C-channel trailers, it ensures easy alignment and smooth docking every time.
- [Premium Durability]: Crafted with marine-grade polyester carpet, these bunks are gentle on your boat’s surface while being tough enough to withstand harsh aquatic environments. The tilting bunks measure 2 x 4 x 24 inches (5 x 10 x 61 cm), offering solid support for your vessel.
- [Easy Installation]: The guide poles measure 21 x 1.5 inches (53 x 4 cm), and U-bolts can be mounted either straight or crossed. The frames are designed to clamp onto the top or bottom of your trailer, offering versatile installation options.
- [Heavy-Duty and Weather-Resistant]:** Built with heavy-duty steel construction, these side bunks are engineered for marine use. Whether facing high winds or rough roads, they’ll keep your boat securely in place.
- [Complete Set]:** The package includes two carpeted bunk board guides, two mounting frames, U-bolts, and all necessary installation hardware. Be sure to measure your boat on the trailer to ensure a perfect fit before purchase.
Best for: DIY enthusiasts
The Waterhead boat trailer side bunk kit includes everything you need for a comprehensive setup, including brackets and hardware. It’s perfect for those looking for an easy DIY installation process.
Pros:
- Complete DIY kit
- Affordable price
- Customizable length
Cons:
- Requires some assembly skill
- Bracket quality can vary
4. T-H Marine T-H Marine PWL-1 Bunk Board
−$7.25
- (2) Carpeted Black Bunk Boards
- Size: 1.5"x3.5"x96" (2x4x8)
- Fabric: UV Stabilized Polypropylene Nonwoven Fabric
- Wood: Pressure Treated 2x4
- Secured with 1/2" Stainless Steel Staples
Best for: Stability and durability
This bunk board from T-H Marine is made from high-quality materials that ensure long-term stability. Its sturdy design supports heavy boats and keeps them secure during transport.
Pros:
- Long-lasting materials
- High weight capacity
- Stability during transport
Cons:
- Heavy for solo installation
- Limited color options
5. C.e. Smith 27530 Boat Trailer Side Bunk Support
- Support bunk and bracket assembly: Provides support for jon boats during transport or storage.
- Helps prevent hull damage: Distributes the weight of the boat and protects the hull from pressure points.
- Durable construction: Made from sturdy materials to withstand heavy loads and rough conditions.
- Easy installation: Includes all necessary hardware for quick and hassle-free setup.
- Adjustable design: Allows you to customize the bunk placement to fit your boat's specifications.
Best for: Boats with unique hull shapes
C.e. Smith’s 27530 side bunk supports are adjustable, allowing you to customize the height to suit unique hull shapes. They are designed for boats of various sizes and styles, ensuring a perfect fit.
Pros:
- Adjustable height options
- Versatile for different boat shapes
- Strong construction
Cons:
- More expensive than fixed options
- Installation can be complex
6. Extreme Max 3005.4410 Boat Trailer Side Bunks
- Includes one pair of 4' bunk-style trailer guide-ons
- Heavy-duty construction to withstand the harsh marine environment
- Easy, bolt-on installation fits bunk or roller-style trailer frames up to 3" wide x 4.25" tall
- The size and shape of trailer frames can vary drastically, please measure your boat on the trailer before ordering to ensure a proper fit
- 7" bolt kits are available for trailer frames up to 5.5" tall, see Extreme Max 3005.4050
Best for: Tough environments
Extreme Max side bunks boast weather-resistant materials, making them ideal for marine environments. Their robust design helps prevent wear from water, salt, and sun exposure.
Pros:
- Weather-resistant
- Strong materials for durability
- Easy to clean
Cons:
- Limited shipping options
- Can be pricier
7. Mile High Trailer Side Bunk Set
- Includes one pair of 4' bunk-style trailer guide-ons
- Heavy-duty construction to withstand the harsh marine environment
- Easy, bolt-on installation fits bunk or roller-style trailer frames up to 3" wide x 4.25" tall
- The size and shape of trailer frames can vary drastically, please measure your boat on the trailer before ordering to ensure a proper fit
- 7" bolt kits are available for trailer frames up to 5.5" tall, see Extreme Max 3005.4050
Best for: Versatile applications
The Mile High Trailer set is versatile enough to be used for multiple types of boats. Its adjustable heights make it adaptable for different loading conditions, giving you flexibility on the water.
Pros:
- Versatile and adaptable
- Reinforced for strength
- Simple installation
Cons:
- Brackets may rust over time
- Padding quality could improve
8. Star Bunk Boat Trailer Side Bunks
- [Effortless Boat Loading]: Keep your small boat perfectly centered during loading with the Boat Trailer Bunk Guide. Designed for compatibility with high beam, box, or C-channel trailers, it ensures easy alignment and smooth docking every time.
- [Premium Durability]: Crafted with marine-grade polyester carpet, these bunks are gentle on your boat’s surface while being tough enough to withstand harsh aquatic environments. The tilting bunks measure 2 x 4 x 24 inches (5 x 10 x 61 cm), offering solid support for your vessel.
- [Easy Installation]: The guide poles measure 21 x 1.5 inches (53 x 4 cm), and U-bolts can be mounted either straight or crossed. The frames are designed to clamp onto the top or bottom of your trailer, offering versatile installation options.
- [Heavy-Duty and Weather-Resistant]:** Built with heavy-duty steel construction, these side bunks are engineered for marine use. Whether facing high winds or rough roads, they’ll keep your boat securely in place.
- [Complete Set]:** The package includes two carpeted bunk board guides, two mounting frames, U-bolts, and all necessary installation hardware. Be sure to measure your boat on the trailer to ensure a perfect fit before purchase.
Best for: Sleek design
Star Bunk offers a sleek look without compromising on performance. Made from high-quality materials, these side bunks provide both aesthetic appeal and reliability during boat transport.
Pros:
- Attractive design
- Sturdy construction
- Easy to clean
Cons:
- Limited support for larger boats
- Installation hardware not included
9. Shoreline Marine Bunk Board Kit
- Made to last: The boat trailer carpeting is made of contractor marine grade carpet. Bunk carpet for boat trailers is tear and UV resistant. SturdyShape marine bunk carpet will resist over time and provide protection for your boat
- Wide applications: Boat carpet can be used on decking, boat carpeting pontoon to reduce slips & trips. Bunk covers for boat trailers to protect your boat / ski jet. Other applications as Van Conversion marine carpeting lining & Garage floor lining
- Boat trailer bunk carpet kit: Marine carpet for boats kit will provide you with Extra products that you need to do the job. The bunk trailer carpet kit includes 1 bunk rail carpet - 1 Adhesive spreader - 1 Staple remover
- Easy to Use: Designed for simplicity, the marine carpet for trailer bunks allows you to achieve a professional finish without hassle. The included adhesive spreader ensures a neat application, saving you time and effort during installation
- Right Dimensions: Measuring 12 inches x 100 ft, this boat runner carpet is great for covering 4x2 bunks. With an 8mm thickness and a strong backing made quality materials, our carpet ensures excellent durability and support
Best for: Comprehensive setup
Shoreline Marine provides a comprehensive bunk board kit that features all the necessary tools and components for an easy installation. This makes it an all-in-one solution for boaters looking to upgrade their trailer setup.
Pros:
- Comprehensive kit
- Easy to set up
- High-quality materials
Cons:
- Costlier than individual purchases
- May require a second person for installation
10. Champion Trailers Adjustable Side Bunks
- Includes one pair of 4' bunk-style trailer guide-ons
- Heavy-duty construction to withstand the harsh marine environment
- Easy, bolt-on installation fits bunk or roller-style trailer frames up to 3" wide x 4.25" tall
- The size and shape of trailer frames can vary drastically, please measure your boat on the trailer before ordering to ensure a proper fit
- 7" bolt kits are available for trailer frames up to 5.5" tall, see Extreme Max 3005.4050
Best for: Long-term investment
Champion Trailers offers a premium adjustable option designed to last. Its durable materials ensure that these bunks can withstand heavy loads and the harsh marine environment, making them a long-term investment.
Pros:
- Extremely durable
- Adjustable features
- Long-lasting
Cons:
- Higher price point
- Installation may be complex for some users
In summary, choosing the best boat trailer side bunks involves balancing quality, durability, and price. The products listed here represent some of the finest options available on Amazon in 2025, ensuring that you can find the perfect fit for your boating needs. From adjustable supports to robust kits, there’s something for every boater looking to enhance their trailer setup.
Buying Guide for Boat Trailer Side Bunks
When it comes to transporting your boat, side bunks are a crucial component of your trailer. They provide support, stability, and protection for your vessel. Choosing the right side bunks can ensure a safe and smooth experience on the road. Here’s a comprehensive guide to help you make an informed purchase.
1. Understanding Side Bunks
What are Side Bunks?
Side bunks are long, flat supports attached to the sides of a boat trailer. They help cradle the hull, preventing it from shifting during transport and minimizing damage.
2. Factors to Consider
a. Material
- Wood: Treated plywood is commonly used. It provides strength but may require more maintenance and can absorb water.
- Carpeted Bunks: These may be made from wood covered with marine-grade carpet. They offer protection against scratches and help with loading/unloading.
- Synthetic Materials: Plastic or vinyl options are lighter, resistant to water damage, and often provide a longer lifespan.
b. Size & Compatibility
- Length: Ensure the bunks are long enough to support your boat. The general guideline is to have the bunks reach from just behind the midsection to slightly beyond the rear.
- Width and Height: Consider the width of your boat and ensure the bunks provide adequate coverage without being too wide or narrow.
- Mounting Options: Check if the bunks fit your trailer. Compatibility is key to a secure and stable load.
c. Weight Capacity
- Load Rating: Ensure the bunks can support the entire weight of your boat. Check the specifications for maximum load capacity.
- Trailer Ratings: The overall weight rating of your trailer should also be compatible with the weight of your boat, including extra gear.
d. Adjustability
- Height Adjustment: Some bunks come with adjustable brackets, allowing you to modify the trailer height based on your boat’s size or to accommodate different loading conditions.
- Angle Adjustment: The ability to adjust the angle can help in optimizing support and ease of loading/unloading.
e. Ease of Installation
- Installation Process: Consider whether you’ll install them yourself or hire a professional. Some bunks come with easy-to-follow instructions, while others may require additional tools or expertise.
3. Maintenance Considerations
- Maintenance-Free Options: Look for synthetic materials that require little to no upkeep.
- Regular Checks: For wooden bunks, regular inspections for rot or water damage are necessary. Ensure they are kept clean and dry.
4. Cost
- Price Range: Expect to invest between $50 and $300 for a set, depending on the material, size, and additional features.
- Long-term Value: Consider longevity and durability; investing more upfront in high-quality materials can save you money in the long run.
5. User Reviews and Recommendations
- Research: Check online reviews and forums for user experiences with specific brands and models.
- Ask Experts: Consult with boating professionals or local marine supply stores for guidance based on their experience.
6. Brands and Options
Some well-known brands to consider when purchasing side bunks include:
- C.E. Smith
- Tie Down Engineering
- Karavan
- Lifesaver
7. Conclusion
Choosing the right side bunks for your boat trailer is essential for safe transportation and ease of use. By considering the factors mentioned above and conducting thorough research, you’ll be able to find bunks that provide excellent support and protection for your valuable vessel. Happy boating!
