In this guide, I walk you through how to replace worn out trailer bunk carpet safely and efficiently. If you've owned a boat, jet ski, or personal watercraft (PWC) for any length of time, this is an essential maintenance task. Replacing bunk carpet not only protects your watercraft during loading and unloading but also prolongs the life of your trailer bunks, brackets, and hull.
We'll cover materials, tools, and simple step by step instructions to get the job done right.
Tools and Materials Needed
- Marine-grade or outdoor carpet
- Heavy-duty staple gun (manual or pneumatic)
- Stainless steel staples (T50 1/4” recommended)
- Sharp scissors or utility knife
- Flathead screwdriver or pry bar
- Measuring tape
- Hammer (optional, for stubborn staples)
- Replacement trailer bunks (if needed)
How I Replaced My Trailer Bunks and Carpet
For my 1997 Yacht Club PWC trailer, which hauls a 1996 SeaDoo XP, I replaced the old carpet while keeping the wood bunks. This is a common scenario: your wood bunks may still be solid, but the carpet is worn thin or fraying.
Steps: Replacing Trailer Bunk Carpet
- Remove the bunks from the trailer. Unbolt the mounting brackets and carefully take the boards off the frame. Inspect the wood for rot, cracks, or warping before proceeding.
- Peel back old carpet. Use a flathead screwdriver or pry bar to lift staples at each end. Often, peeling the carpet pulls most staples out. For stubborn staples, tap gently with a hammer.
- Prepare your new carpet. Lay the old carpet over the new material to use as a template. Mark the outline and cut carefully with sharp scissors or a utility knife. Leaving a slight overhang helps wrap the edges neatly.
- Center and align the carpet. Place the new carpet on the bunk, align it evenly, and mark any areas that need trimming for a snug fit.
- Staple the carpet to the board. Start at one end, add 2 to 3 staples, stretch the carpet, and staple the opposite side. Continue alternating sides until the length is secured. Keep the carpet taut but do not overstretch.
- Wrap and secure the ends. Fold the corners like a gift box, staple securely, and trim excess material. This prevents water from getting trapped under the carpet and helps the carpet last longer.
- Reinstall the bunks and brackets. Bolt everything back onto the trailer securely. Double check that the bunks are level and aligned for smooth launching and retrieval of your watercraft.
Extra Tips for a Professional Finish
- Use outdoor or marine-grade adhesive spray under the carpet before stapling for extra hold.
- If your wood bunks are weathered, lightly sand and seal them before installing new carpet.
- Measure twice, cut once: proper carpet sizing reduces wrinkles and excess overlap.
- For extra protection, consider adding rubber or vinyl edge trim along corners to prevent wear.
- Inspect bunks annually for loose staples or fraying carpet to prolong lifespan.
Project Complete
Here's the final result: freshly carpeted trailer bunks reinstalled on my 1997 Yacht Club trailer, ready for safe watercraft transport.
Trailer Bunk Carpet Maintenance FAQ
What kind of wood is used for trailer bunks?
Pressure-treated 2x4 or 2x6 pine is most common. Durable, easy to replace, and resistant to rot.
How long should trailer bunks be?
They should run at least half the length of your boat, ideally supporting it from bow to stern or slightly beyond.
What's the best carpet for trailer bunks?
Outdoor or marine-grade carpet is best. Surprisingly, some home improvement outdoor carpets last longer than certain felt-style marine carpet while costing less.
Which staples should I use?
Stainless steel staples (T50 1/4”) prevent rust and staining. Avoid regular steel staples, which can damage the carpet and corrode over time.
Can I use a manual stapler?
Yes, a heavy-duty manual staple gun works fine. Tap in stubborn staples with a hammer if needed.
When should you replace trailer bunks?
Replace them if they sag, warp, or rot. Carpet should be replaced when wood is exposed or fraying occurs.
How often should I replace trailer carpet?
Typically every 5–10 years depending on sun, water, and usage. Inspect annually for signs of wear or damage.
Can I prevent carpet from fraying?
Proper stapling, folding corners neatly, and using marine-grade materials reduces fraying and extends lifespan.
How do I prep wood bunks before installing new carpet?
Lightly sand rough areas, seal with waterproof sealant, and ensure the surface is clean and dry before stapling carpet.
Final Thoughts on Trailer Bunk Carpet Replacement
Replacing bunk carpet is a straightforward DIY project that protects your watercraft and prolongs trailer life. Proper installation and regular maintenance will keep your trailer in top shape, reduce hull damage risk, and make launching and retrieving your boat or PWC easier and safer.