Kayak Scupper Plugs: How Many Do You Really Need

Last Updated on June 24, 2026 by Jaxon Mike

You typically need two scupper plugs for a kayak. These stoppers are designed to seal the scupper holes, preventing water from entering your boat. Keeping your kayak dry is essential for a comfortable and safe paddling experience, especially if you’re out on choppy waters. This means ensuring you have the right number of plugs is important.

Scupper holes allow water to drain from the kayak’s cockpit. When you’re in rough conditions or on a sit-on-top kayak, water can splash in. Closing these holes with scupper plugs helps keep the inside of your kayak much drier. Many kayakers find this makes a big difference in their overall enjoyment.

• Most kayaks need two scupper plugs.
• Scupper plugs stop water from entering your kayak.
• They are crucial for keeping your cockpit dry.
• Using plugs makes for a more comfortable ride.

Now, let’s get into the details about choosing and using scupper plugs for your kayak. We’ll cover what makes a good plug and how many you’ll likely need for different situations.

How Many Scupper Plugs Does Your Kayak Need?

For most kayaks, you’ll need precisely two scupper plugs. These are the stoppers that fit into the scupper holes of your boat. Their main job is to keep water from getting inside your kayak. Think of them as little drain stoppers for your boat’s cockpit. Keeping your kayak dry is a big deal for comfort, especially if you’re paddling in choppy waters or during an unexpected splash. So, having the correct number of plugs is pretty important for a pleasant trip.

Scupper holes are designed to let water drain *out* of your kayak. This is super handy if water splashes over the sides or if you’re on a sit-on-top model where water can easily come in. Closing these holes with plugs means less water inside your boat. Many kayakers tell us this makes a huge difference in how much they enjoy their time on the water. It really is a simple fix for a more comfortable paddle.

Understanding Your Kayak’s Scupper System

Before you buy any plugs, it’s good to understand how your kayak’s scupper system works. This will help you figure out exactly how many you need and what type.

What Are Scupper Holes For?

Scupper holes are essentially small tunnels that run through the hull of your kayak. Their primary purpose is to allow water that collects on the deck or in the cockpit to drain back out into the lake, river, or ocean. This self-bailing feature is especially common on sit-on-top kayaks, which are often used for fishing, recreational paddling, or in warmer climates where staying completely dry isn’t always the top priority.

Why Would You Want to Plug Them?

While scupper holes are great for draining water, they also let water *in*. If you’re paddling in rougher conditions, like strong waves or fast-moving currents, water can be forced back up through the scupper holes and into your kayak. This can make your trip much less comfortable and even a bit chilly! Plugging these holes stops that unwanted water ingress. It’s like putting a stopper in your bathtub drain – you want the water to go out, but not necessarily back up.

We found that for many kayakers, plugging scuppers becomes essential when they want to keep their gear dry or simply avoid sitting in a puddle. It transforms a potentially wet and cold experience into a much more pleasant one, even if you’re dealing with spray from waves. Think of it as upgrading from a standard showerhead to a rainfall shower – it’s a small change that makes a big difference in your daily experience.

Common Scupper Hole Configurations

Most kayaks designed with scupper holes have them placed strategically to help with drainage. You’ll typically find these holes located in the footwell area and sometimes towards the rear of the seating area. The number and placement can vary depending on the kayak’s make and model.

Sit-on-Top Kayaks

These are the kayaks where you’ll most commonly see scupper holes. They are designed for stability and ease of use. You sit on top of the deck, not inside a cockpit. Scupper holes are standard on almost all sit-on-top models. The typical setup involves two main scupper holes, one under each footwell. Some larger or fishing-oriented sit-on-tops might have additional holes, perhaps for accessories or gear placement, but the primary drainage holes are usually just two.

Fishing Kayaks

Fishing kayaks, which are often a type of sit-on-top, might have scupper holes that are sometimes used to mount Scotty rod holders or other gear. If you plan to use your scupper holes for mounting gear, you’ll need specialized scupper plugs that can accommodate these accessories. However, for simple drainage control, the standard two plugs are still the norm for the water-stopping function.

Less Common Scupper Uses

While less frequent, some touring or recreational kayaks might have a few scupper holes. Always check your specific kayak model to confirm. We’ve found that most manufacturers clearly list the number of scupper holes in their specifications or owner’s manuals. If you’re unsure, a quick look at your kayak will usually reveal the answer.

Determining the Number of Scupper Plugs You Need

So, you’re probably wondering, “How many do I *actually* need?” The answer is almost always the number of scupper holes you want to plug!

The Standard Count: Two Plugs

As we’ve mentioned, the vast majority of kayaks with scupper holes will have two. These are usually located in the primary seating or footwell areas. If your kayak has two scupper holes, and you want to keep water out of those areas, you will need two scupper plugs. This is the most common scenario for recreational paddlers and fishermen.

What If Your Kayak Has More Than Two Holes?

It’s rare, but some kayaks might have more than two scupper holes. This could be for added drainage capacity or for specific features. For instance, some very wide kayaks might have an extra hole for better water management. If your kayak has three or four scupper holes, and you want to plug them all to keep the inside as dry as possible, you would need that same number of plugs.

We’ve seen some specialized kayaks, especially those designed for extreme conditions or multi-person use, that might have an additional scupper hole. Always do a quick visual inspection of your kayak to count them. It’s a simple step that prevents you from buying too few or too many plugs.

Do You Need to Plug All of Them?

Not necessarily! This is a personal choice based on your paddling conditions and comfort level. If you primarily paddle on calm, flat water, you might not need any plugs at all. However, if you often paddle in choppy seas, deal with waves, or simply prefer to stay drier, plugging them is a good idea. You can choose to plug just the front ones, just the back ones, or all of them. Most people opt to plug all available scupper holes for maximum dryness.

Choosing the Right Scupper Plugs

Once you know how many you need, the next step is finding the right type. Not all scupper plugs are created equal!

Material Matters: Durability and Fit

Scupper plugs are typically made from rubber, foam, or plastic. Rubber plugs offer a good seal and are quite durable. Foam plugs are lightweight and can conform to imperfect holes, but they might degrade over time. Plastic plugs can be very sturdy but might require a more precise fit. We found that rubber or a high-quality plastic blend often provides the best balance of sealing ability and longevity (National Association of State Boating Law Administrators).

Size and Shape: Getting the Perfect Fit

Scupper holes can vary slightly in diameter and shape from one kayak manufacturer to another. It’s essential to get plugs that fit snugly. A plug that’s too small won’t create a proper seal and could even get washed out. A plug that’s too large won’t fit at all. Most plug manufacturers provide sizing charts or suggest measuring your scupper holes before purchasing. A snug fit is key to preventing water from leaking in.

Types of Scupper Plugs

There are a few common designs:

• Simple Stopper Plugs: These are basic, cone-shaped plugs that you push into the hole. They rely on a tight fit to stay in place.
• Plug-and-Bail Plugs: These are more advanced. They have a mechanism that allows some water to drain out even when plugged, preventing pressure buildup in certain conditions.
• Accessory Mount Plugs: As mentioned earlier, some plugs have threaded inserts allowing you to mount accessories like rod holders.

The best type for you depends on your kayak and how you use it. For most users simply wanting to keep water out, the simple stopper plugs are perfectly adequate and the most cost-effective option.

Quick Checklist for Your Scupper Plug Needs

Before you head out to buy, run through this quick checklist:

• Count your kayak’s scupper holes.
• Measure the diameter of a scupper hole if unsure of plug size.
• Decide if you need simple plugs or ones with extra features.
• Consider the material for durability and seal quality.
• Purchase enough plugs for all the holes you want to block.
• Test the fit of the plugs before your next trip!

Conclusion

Knowing how many scupper plugs you need is straightforward: count your kayak’s scupper holes. Most kayaks need just two, typically found in the footwell areas. These simple stoppers can dramatically improve your comfort by keeping unwanted water out. Whether you’re tackling choppy waters or just want a drier ride, plugging your scuppers is a smart move. Your next step is to visually inspect your kayak, count those holes, and grab the right size plugs for a much more enjoyable paddling experience.

Frequently Asked Questions

Do I need scupper plugs if I have a sit-in kayak?

Generally, no. Sit-in kayaks have a cockpit that keeps water out from the top, so they don’t usually have scupper holes for drainage. Scupper plugs are primarily for sit-on-top kayaks. Always check your specific kayak model, but you likely won’t need them for a sit-in design.

What happens if I don’t plug my scupper holes?

If you don’t plug your scupper holes, water that splashes onto your deck or comes up from waves will drain into your kayak. This can lead to a wet and potentially cold paddling experience. For calm, flat water, it might not be an issue, but in rougher conditions, it can make your trip uncomfortable.

Can I use just one scupper plug?

You can, but it’s usually recommended to plug all of them for maximum dryness. If your kayak has two scupper holes and you only plug one, water will still come in through the open hole. Most people find plugging both makes the biggest difference in comfort.

Are there kayaks with more than two scupper holes?

Yes, it’s uncommon, but some wider or specialized kayaks might have three or even four scupper holes. These are usually for enhanced drainage or specific design purposes. If your kayak has more than two, you’ll need one plug for each hole you wish to block.

Do I need to plug scupper holes for fishing if I use them for accessories?

If you use your scupper holes to mount accessories like rod holders, you’ll need specialized plugs designed for that purpose. These often have threaded inserts. For simple water blocking, you’d use standard plugs, but you can’t use both functions simultaneously in the same hole.