Knowledge Builders

how do i choose a boat fender

by Payton Gleichner Published 3 years ago Updated 2 years ago
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Key considerations

  • Boat size. The right fender for your needs depends on one important question: how big is your boat? ...
  • Material. ...
  • Shape. ...
  • Sealed vs. ...
  • Rope eyes (eyelets) If you want the flexibility of being able to hang your fenders vertically or horizontally, consider fenders with two rope eyes, one molded and reinforced into each ...
  • Centerline design. ...

If your boat is particularly heavy for its size, or the conditions you moor in are or will be particularly harsh, use larger, heavier duty fenders than called for in sizing charts. The general rule of thumb is that a cylindrical fender should have 1" of diameter (2" for round fenders) for every 4' to 5' of boat length.May 8, 2018

Full Answer

How to choose the right fenders for your boat?

For every boat owner it is important to chose the correct boat Fenders according to the boat type and its length. Choosing the correct size and number of fenders for the boat is essential in order to prevent potential damage caused by hitting another boat while docking or to the dock of the marina.

How do you position a boat fender on a dock?

To position fenders correctly, hang them so that the bottoms of the fenders just skim the water’s surface, and then raise them an inch or two. This prevents the dock from pushing the fender up and out of position while limiting marine growth on the fender.

How do you fix a loose Fender on a boat?

Also tie fenders as low as possible on the boat. This limits swing arc, ensuring that the fender will better maintain its intended position. Clean fenders with soap and water. Do not use harsh cleaning agents such as acetone or related products as they will damage your fenders.

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How do you measure a boat fender?

When measuring length, don't drape the tape measure over the ends of the fender; always measure from the very end to the very end using a straight tape or yardstick (please see the figure below or refer to our video guide).

How hard should boat fenders be?

A properly inflated fender will feel firm and still look cylindrical - no bulging side walls. When inflating with an air compressor, set the pressure to 1-2 psi. In the absence of a pressure gauge, you should be able to depress the sidewall of the fender about 1/2” with light finger pressure.

How many fenders should a boat have?

How Many Fenders Should You Use? A rule of thumb for how many boat fenders to use is = one fender per 10' of waterline, with a minimum of three fenders. So a 20′ boat would need 3 fenders and a 40′ would need 4. At least one fender must be placed at maximum beam.

How firm should boat fenders be?

0:036:09Choosing the Perfect Boat Fenders - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd may last longer that as a general minimum. This idea of one inch of fender diameter for every 5MoreAnd may last longer that as a general minimum. This idea of one inch of fender diameter for every 5 foot a boat length has served us pretty well.

How big do my boat fenders need to be?

The general rule of thumb is that a cylindrical fender should have 1" of diameter (2" for round fenders) for every 4' to 5' of boat length.

When should you put fenders on your boat?

They're used by all types of boats from motor yachts and sailboats to small runabouts to prevent damage to paint, varnish, gunwales and hulls overall. A must-have boating accessory, fenders can help protect your boat (and your wallet) in case of a docking mishap or unexpected motion due to wind or current.

What is the difference between boat bumpers and boat fenders?

Often, the terms Bumper and Fender are often used interchangeably, but there's a distinct difference. Boat Bumpers are attached to the Dock, where Boat Fenders are attached to the Boat.

How long should a boat fender line be?

Plan on at least one bow line, two spring lines and at least one stern line....Suggested Dockline Sizing.Boat Size3 strand Nylon or Braidup to 25'3/8”up to 35'1/2”up to 45'5/8”up to 55'3/4”1 more row•Jun 13, 2013

Where do you put fenders on a boat?

Place the fender a few inches above the surface of the water to keep it from getting gunked up. A minimum of two fenders should be used, with one being placed at the widest point of the hull and one near the stern. However, the more, the merrier — and less chance of hull damage.

How many dock bumpers do I need?

Though they may seem expensive, dock bumpers are a worthy investment as they will protect your boat from costly damage. With this guideline in mind, pick at least two boat dock bumpers to set up so you can make docking easier and safer.

What kind of rope is used for boat fenders?

Strong, tough, attractive and cheap, jute rope is another great choice for use as fender rope. Made with a strong polypropylene core sheathed in traditional jute rope, the jute fender ropes available from Ropes Direct won't give up easily, and will provide a strong, durable fender for your boat or dock.

Do boat bumpers float?

> No. Big Bumpers are not approved flotation devices and should NEVER be used as a floating step.

Do boat bumpers float?

> No. Big Bumpers are not approved flotation devices and should NEVER be used as a floating step.

How many fenders do I need for a 24 foot boat?

As a general rule of thumb, for every 5 feet of a boat's length you'll need one fender an inch thick (in diameter). Small vessels may require just two fenders, while boats over 40-feet may need over 6.

How long should fender lines be?

Plan on at least one bow line, two spring lines and at least one stern line....Suggested Dockline Sizing.Boat Size3 strand Nylon or Braidup to 25'3/8”up to 35'1/2”up to 45'5/8”up to 55'3/4”1 more row•Jun 13, 2013

How do you tie a knot on a boat fender?

0:451:57Knots for Fenders - Tips & Tricks - YouTubeYouTubeStart of suggested clipEnd of suggested clipSecond thing make sure your fender's actually out of the water to use a clove hitch one of myMoreSecond thing make sure your fender's actually out of the water to use a clove hitch one of my favorites. Simply go over the railing. Behind it over it and back up clove hitch it's a great knot.

What are the factors to consider when attaching boat fenders?

When it comes to attaching, deploying, or installing boat fenders on your boat, you'll want to consider three key factors: size, placement, and the number of fenders.

What is a boat fenders?

Boat fenders, often referred to as "boat bumpers" by new or novice boaters, provide a cushion between your boat and a dock, jetty or another boat. They’re used by all types of boats from motor yachts and sailboats to small runabouts to prevent damage to paint, varnish, gunwales and hulls overall. A must-have boating accessory, fenders can help protect your boat ( and your wallet) in case of a docking mishap or unexpected motion due to wind or current.

What knot to use for a fender?

If you have to tie a line to a fender yourself, a good knot to use is the bowline —as it’s strong, creates a loop that will go through one eye of the fender, and can be untied if needed even when serious strain has been applied to the line. Once a line is securely attached to a fender, you’ll rarely be untying it.

How many types of fenders are there?

There are three main types of fenders, and their use depends on the size of your boat, the docking situation at hand, and other extenuating circumstances.

What are scuba diving boats made of?

These are made of various materials including PVC (like some dinghies).

Do fenders take up space in a tight slip?

These come in different shapes, often flat, so they don’t take up much room in a tight slip, which is helpful since fenders add width to your overall beam.

Do you need fenders for rafting?

Rafting up to another boat will require both vessels to have fenders, if possible. If the boats are of different heights, it’s best to put one set of fenders lower and the other higher off the waterline.

How big should a boat fender be?

The Size of the Boat and the Fender: The rule of thumb for the boat fenders is that its diameter has to be at least 1 inch for every 5 feet of the boat. For the bigger boats, you will require bigger fenders. Like, for a 20 feet longboat, you will need to buy four fenders in total.

What is the importance of a boat fender?

When you have your own boat, it is essential that you keep it safe and secured for a long-lasting service. If you are not cautious enough while docking in or out, you might bump into another boat or docks and damage the edge, railings of your boat. Moreover, it is not always up to you; even if you are careful enough, there is no surety that someone else will not bump against your boat and damage the body. That’s why boat fender comes first as safety accessories. But what size fender for boat do you need? That is one of the common questions.

Why are boat fenders air filled?

Most boat fenders are air-filled inflated fenders in different shapes to prevent different parts of the boats from damage.

What is a dock fence saver?

The dock fence savers, cushions, and guards come in handy for those who have not installed any fenders yet or have not configured them correctly. Some of the dock wheels also allow easy pumping features. You have to buy an additional hand pump for inflating it. The air-cushioned inflatable fenders and guards tend to deflate the air inside it every time it is pushed against anything. So with these hand pumps, you can quickly inflate the accessories and tools and ensure excellent protection for the docks and boats.

What factors affect the size of a boat fender?

Another crucial factor affecting the fender’s size is the boat’s specification, design, boat length, functioning, etc. It also depends on the condition of the boat, boat weight, docking area, etc.

Where do you drill fenders on a boat?

Many boat owners drill the fenders to the railings and other areas of the boat. If you don’t want to do that, make sure you buy the ones you can easily attach through roping down or hanging.

Can a railing fender be used as a dock fender?

You can’t expect a railing fender to function as a dock fender too. It is better to place the fenders at the widest beam of the boat. Don’t go for the one with a complicated installation process. Now you have a basic idea about what size fender for boat you need to purchase.

Why is it important to choose the correct boat fenders?

Choosing the correct size and number of fenders for the boat is essential in order to prevent potential damage caused by hitting another boat while docking or to the dock of the marina.

Do you need a buoy for a yacht?

For larger yachts, buoys are suggested. -Do not underestimate the use of the fenders for the protection of your boat, no matter the type or size. Every boat requires OCEAN for its protection, and OCEAN has all different kinds of fenders to do so!

How big should a boat fender be?

The size of the fender is vital to keep impact resistance optimal at all times. For every 4 to 5 feet in length of your boat, you can have at least 2 inches for round fenders and at least 1 inch for cylindrical ones.

What is the best fender for a large boat?

Round Fenders. This style is best for large boats because these are hard to burst on joint boat impact, incredibly when properly inflated. This type may take a lot of space because of its shape, so this fender is best for those with large storage capacity.

What Are Boat Fenders For?

Boat fenders keep your boat safe from colliding with other vessels. When on the dock, having boat traffic cannot be avoided. Especially during peak hours, a lot of boats can dock at the same time as you. These boat fenders cushion your vessel even from the dock itself and from other ships.

What if I Get the Wrong Size of Boat Fenders?

The wrong size of boat fenders can be hard to handle on the water. Aside from that, fenders that are too small for the vessel, or an insufficient number of fenders can do nothing to protect your boat.

How Many Fenders Should I Get?

A boat can never have enough fenders. But you will need to consider the space for these accessories. Not to mention the boat’s overall aesthetic, since it cannot look like a massive chunk of fenders while on board.

Where Should I Attach my Fenders?

The placement of these fenders is critical for boat owners. The areas where the impact may hit your boat are the optimal place for these fenders to be attached. Sites with high chances of damage like scratching and bumping are also recommended. They are usually attached to the handrails or railings. Sometimes, they are also clamped down.

Why are boat fenders important?

Conclusion. Boat fenders are great for keeping your boat damage-free. These protective accessories cushion your boat against bumping on the dock or other vessels. But aside from having one, the appropriate size is an important thing to note.

What Actually Are Boat Fenders and How Do They Work?

Boat fenders act like a safeguard to your vessel. You can call them a barrier or a cushion – either way, this piece of marine equipment acts like a tampon zone between your boat and other boats, as well as the pier and dock.

How many fender per foot for a 10 foot boat?

With round fenders, you will need 2 feet of fender per 1 foot of the vessel. We would advise you getting at least 3 fenders for your 10-feet boat. Some fenders come in pairs, so you can get two pairs as well.

What is a polyform fender cover?

The Polyform finderfits boat fender covers feature unique workmanship and high-quality material construction. You can rarely find boat fender covers made of a bulk acrylic yard that is resistant to sunlight the way these are.

Why do boat fenders fade?

Boat fenders come in different colors. Yet, the exposure to salt water and sun rays can make their color fade. Once this happens, your fenders won’t look as sleek as they used to. The same applies to fender covers. That’s why t would be best to find products that are resistant to UV rays as they will retain their original appearance for longer.

What is a specialty boat fender?

One of the subcategories of specialty fenders – fender cushions prevent algae and mildew piling on your boat.

What is a vivo fender?

VIVOHOME has a fender kit that offers superb service, ease of use, and durability. These fenders are pretty sleek and sturdy so you can be confident about them protecting your vessel. Equipped with braced eyelets, these can be installed either horizontally or vertically.

How long does it take for a boat fender to fade?

Some customers might mind foul chemical odors this boat fender gives off when unpacked, but it will fade away after a couple of days.

Which fender shape is best for a boat?

Round: Among fender shapes, round fenders provide the highest protection. However, it comes with the cost that round shapes take up a lot of space. At large marinas where mooring is limited, they can be troublesome.

How long should a boat fender be?

Boat length: This is the most critical Many boat fender size charts account for boat length only. The general rule is for every four to five feet of boat length, you will want a one-inch (in diameter) cylindrical fender or a two-inch round fender. For example, let’s say your boat is 10 feet long. Then, you will need cylindrical fenders that have a diameter around three inches. Take a look at this Polyform G series fender size chart.

Why are boat fenders important?

Boat fenders are excellent for protecting the hull. These cushion the vessel in the event of bumping against the dock or other boats during peak hours. However, the wrong size of boat fenders won’t be as effective. For maximal protection, you must consider the boat fender sizes, as well as the number and position of fenders that work best for your vessel.

What size fender do I need for a 15 foot tracker boat?

That means a 15-foot tracker boat needs three to four-inch cylindrical fenders. But how many fenders should I get? And where to hang them?

What is a fenders boat?

Generally speaking, fenders act as a cushioning between the hull and hard surfaces like the mooring, rocks, and other boats. During peak hours or holidays, there is usually a lot of traffic, colliding and scratching other vessels are unavoidable. Moreover, at large marinas, docking space is very limited. When boats dock closely to each other, you can really use the help of fenders, especially on days when the water is rough.

What is foam fenders made of?

The outer layer is polyurethane elastomer, a popular coating material known for its extreme resilience. Then, the fenders are filled with polyethylene foam. It is why you often hear foam-filled fenders, not foam fenders.

What is the most widely used material for boat fenders?

Rubber: Rubber is the most widely-used material when it comes to boat fenders. It is because they are cost-effective, durable, and able to absorb relatively large shocks. Huge fenders you see at marinas are made from rubber too. They help keep the dock from being damaged if a vessel bumps into it.

Tips For Hanging Fenders When

DOCKING Use at least three fenders, one on the aft, one on maximum beam, and one on fore. Three are sufficient in most cases, though if you feel the need to use more than three, theres no harm. Ensure that the fenders are hung vertically for smooth-surface or floating piers and horizontally when tying against docks with exposed pilings.

Mission Boat Gear Sentry Boat Fender Bumper

If you want a boat fender that is especially made to offer ultimate protection for your most treasured vessel, then you have found the one. This is built with ingenious hanging system that allows easy placement on a dock or vessel providing protection both underneath and above the rub rail which is surely distinct than conventional bumpers.

Where To Place The Fenders On A Pontoon

As discussed, you will need to have a minimum of 3 fenders along one side of your pontoon boat.

Are They Called Boat Fenders Or Boat Bumpers

If youve ever been to an amusement park then you have probably ridden on the bumper cars or bumper boats. The object of those rides is to bump into your friends and drive away laughing while trying to avoid getting bumped by the other drivers.

How Many Fenders Should I Get

A boat can never have enough fenders. But you will need to consider the space for these accessories. Not to mention the boats overall aesthetic, since it cannot look like a massive chunk of fenders while on board.

Where Should I Attach My Fenders

The placement of these fenders is critical for boat owners. The areas where the impact may hit your boat are the optimal place for these fenders to be attached. Sites with high chances of damage like scratching and bumping are also recommended. They are usually attached to the handrails or railings. Sometimes, they are also clamped down.

Do You Want To Hang Them Horizontally Or Vertically

Center rope tube fenders allow you to hang the fender either horizontally or vertically using one line running through the centerline. A figure eight knot in the end of the line, or two figure eights at both ends of the fender are used to keep the fender from sliding.

How many fenders does a 20' boat need?

For example a 20′ boat would need 3 fenders and a 40′ would need 4. Ensure a minimum of one fender is placed at the point of maximum beam width with the reminder fore and aft.

How many fender per 10 foot of waterline?

Depending on the size of the boat, use a minimum of one fender per 10 foot of waterline, but always a minimum of three fenders. For example a 20′ boat would need 3 fenders and a 40′ would need 4.

What is a fender sock?

Fender socks: are designed to protect fenders from the elements and the effects of winter mooring against the boat next door. Continuous contact with scratched fenders can also leave the Gelcoat worn too. Using a sock is a great way of protecting the fender as well as your GRP.

Why do you need a fenders rack?

Fender racks are great to keep fenders both accessible and out of the way.

What accessories are available to make working with your fenders more convenient?

Accessories are available to make working with your fenders more convenient. Such as; fender hand pumps (alternately, most sports ball pumps work) to quickly and easily add air to a fender whenever required, fender height adjusters, to adjust fender height instantly without having to tie knots, and of course fender lines, to keep your fenders properly secured. These products are definitely worth a look.

What is the best way to clean a fender?

The best option is to use a formulated cleaner, most fenders are made out of marine-grade vinyl and can , therefore, be cleaned with a vinyl cleaner spray such as Star Brite fender cleaner. It’s a safe way to remove stains without having to resort to a chemical solvent.

How many fender lines are there on a double eye fenders?

Cylindrical double eye fenders are typically hung vertically but may be hung horizontally with two fender lines.

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Video: Boat Fender / Bumper Essentials

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The video below will hit on all the crucial points we'll make in this article, so if you prefer a video format, go on and hit play! For more in-depth information, read on. Boat fenders are essential equipment for any boat to protect the hull from contact with docks, pilings and other boats. Boats are expensive but fenders are not; alwa…
See more on anchoring.com

Number and Placement

  • Fenders won’t do their job if they’re not deployed properly. Attention should be given to the number and position of fenders on your boat. There is a rule of thumb for fender number: use one fender per 10’ of waterline, with a minimum of three fenders.So a 20' boat would need 3 fenders and a 40' would need 4. At least one fender must be placed at maximum beam, with others distri…
See more on anchoring.com

Cleaning, Stowage and Accessories

  • Cleaning
    Clean fenders with soap and water. Do not use harsh cleaning agents such as acetone or related products as they will damage your fenders. Better yet, don’t let your fenders get dirty in the first place; washable fender covers are available to keep your fenders clean and protected from the e…
  • Stowage
    If you follow the advice here and carry extra fenders, you’ll need a place to stow them. You can simply stow the fenders in a storage locker or under a seat. However, this can make access to the fenders inconvenient. Fender racks are great for this as they keep fenders both accessible and o…
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Final Words

  • Protect your investment! You’ll be far better off spending a relatively small amount on a good set of fenders than spending a very large amount on boat repair. 1. Be sure to get the appropriate sized fenders for your boat and don’t forget to buy some extras 2. Get a variety of fender types to prepare for the different mooring situations you’ll encounter 3. Have a stowage strategy that allo…
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1.Videos of How Do I Choose a Boat Fender

Url:/videos/search?q=how+do+i+choose+a+boat+fender&qpvt=how+do+i+choose+a+boat+fender&FORM=VDRE

27 hours ago How to Use Boat Fenders. 1. Choose the Right Size Fender (s) You should size your fenders according to the size and type of your boat . The general rule of thumb is the ... 2. Determine Proper Placement and Height. Most place or "hang" their fenders by spacing them equally. What you really need to ...

2.How to Choose the Best Boat Fender Type, Number, …

Url:https://www.anchoring.com/blogs/anchoring/how-to-choose-the-best-boat-fender-type-number-location-and-more

33 hours ago  · Give your boat the best cushion possible! West Marine has all the fenders you'll need for your boat. In this video we discuss some of the different styles of...

3.Boat Fenders ("Bumpers") 101: Tying, Placement & Usage

Url:https://www.discoverboating.com/resources/boat-fenders-and-bumpers

6 hours ago How to choose the correct Fender for your Boat. For every boat owner it is important to chose the correct boat Fenders according to the boat type and its length. Choosing the correct size and number of fenders for the boat is essential in order to prevent potential damage caused by hitting another boat while docking or to the dock of the marina. To help you choosing the correct boat …

4.Choosing the Perfect Boat Fenders - YouTube

Url:https://www.youtube.com/watch?v=wc7uLevr9Lo

11 hours ago  · You can check the appropriate size of the fender for your boat in a reputable sizing chart. Besides the length, boat experts also look at the weight and the mooring conditions. Bigger boats may require oversized fenders around. If you moor your vessel in harsh conditions, more prominent fenders are also recommended.

5.What Size Fender for Boat Do I Need? - WaterNetic

Url:https://www.waternetic.com/pontoon/what-size-fender-for-boat/

35 hours ago  · A rule of thumb when buying boat fenders is to choose a fender that is double the size of your boat. In other words, it takes 2 inches of a fender for every foot of your boat when you are buying round fenders. With cylindrical fenders, go for a 1:1 ratio. However, although this is a standard, we recommend going for a slightly larger fender.

6.Boat fender Selection Chart -Fendering tips

Url:https://www.oceanfenders.com/charts.php

29 hours ago  · We recommend installing three fenders on each side of a 10-foot boat. From there, with every ten more feet, install one more fender. That means a 20-foot vessel should have at least four fenders on each side. Boat Fenders Placement. To place fenders properly, hang them so that their bottoms touch the water’s surface, then raise them an inch or two.

7.What Size Boat Fenders Do I Need? - Boating Basics Online

Url:https://www.boatingbasicsonline.com/what-size-boat-fenders-do-i-need/

15 hours ago  · Place one at the aft. Obviously if your pontoon is longer, then you will need more as per the guidance in the previous section where I recommend one fender for every 10 foot of waterline. If you decide to use hanging fenders, then let the bottom of the fender just touch the top of the water surface.

8.9 Best Boat Fenders & Fender Covers – (Reviews 2022)

Url:https://www.marinexpert.net/best-boat-fender-reviews/

10 hours ago To allow a fender to do its work in the best way, they have to be installed in the correct positions, spacing, and amount of fenders. Depending on the size of the boat, use a minimum of one fender per 10 foot of waterline, but always a minimum of three fenders. For example a 20′ boat would need 3 fenders and a 40′ would need 4. Ensure a minimum of one fender is placed at the point …

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11.What’s the correct size fender for my boat? – MY BOAT …

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