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flag size for sailboat

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How to Choose the Appropriate Size Flag for Your Boat

Boats come in a variety of sizes and styles. As a result, so do boat flags !

Most mariners can agree that an 8x12” flag would look rather odd on a 50 foot yacht, but determining the correct size flag to purchase for your boat can be challenging – especially if you choose to fly more than one flag.

The yacht ensign , which is the national flag for the country in which the vessel is registered, should be the largest flag on the boat. All other flags on board should be smaller in size. Generally speaking, the yacht ensign should be approximately one inch in width for every foot of boat length. For example, a 33-foot vessel would use a 24x36” yacht ensign with a private boat flag of 12x18”.

To take the guesswork out of determining the correct boat flag size for your vessel, our flag experts put together the below Boat Flag Size Guides for Power Boats and Sailboats. Whether you’re purchasing a U.S. yacht ensign , a pirate flag , a fishing flag or designing your own custom boat flag , the below chart will help you select the appropriate dimensions.

A Guide to Boat Flag Sizing

Boat Flag Size Guide for Power Boats

                 
Under 20’ 8x12” 12x18”
20’ 10x15” 12x18”
25’ 10x15” 16x24”
30’ 12x18” 16x24”
35’ 12x18” 24x36”
40’ 14x21” 24x36”
45’ 14x21” 24x36”
50’ 16x24” 2.5x4’
55’ 16x24” 2.5x4’
60’ 20x30” 2.5x4’
70’ 20x30” 3x5’
80’ 24x36” 3x5’
90’ 24x36” 4x6’
100’ 30x48” 4x6’

Boat Flag Size Guide for Sailboats

                 
20’ 10x15” 16x24”
25’ 10x15” 16x24”
30’ 12x18” 24x36”
35’ 14x21” 24x36”
40’ 14x21” 24x36”
45’ 16x24” 2.5x4’
50’ 20x30” 2.5x4’
60’ 20x30” 2.5x4’
70’ 24x36” 3x5’
80’ 24x36” 3x5’
90’ 30x48” 4x6’
100’ 30x48” 4x6’

Our Experts Can Help You Choose the Right Size Flag for Your Boat

For personalized service and support, give us a call at 1-888-697-3524 or contact us online . Our boat flag experts will help you select the appropriate size flag for you boat and can even help you place an order by phone.

You can also browse our wide selection of boat flags and place an order online. Choose from U.S. yacht ensigns , fishing flags and pirate flags , or design your custom boat flag .

  • – FlagMagic
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  • – Pride Month 2022

The Definitive Guide To Boat Flag Shapes and Sizes

The Definitive Guide To Boat Flag Shapes and Sizes

Boat Flag Shapes

Do you know the difference between a boat flag and a boat pennant? How about the difference between a boat flag and a burgee? If not, don't worry - you're about to learn! In this blog post, we will discuss all the different boat flag sizes and shapes. We'll provide information on what each type of boat flag is used for, as well as tips on choosing the right size and shape for your needs.

Boat flags come in a variety of shapes and sizes, but the most common boat flag shape is rectangular. Rectangular boat flags are typically used for decorative purposes , such as flying your country's flag or displaying your boat's name and home port.

flag size for sailboat

Pennants are another popular boat flag shape - they are long and narrow, and often have a pointed end. Pennants are often used to signal distress or indicate that a boat is entering or leaving port.

flag size for sailboat

Burgees are another type of boat flag, and they are usually triangular in shape. Burgees are typically used by yacht clubs or other organizations as a way to identifying their members.

flag size for sailboat

When choosing a boat flag, it's important to consider both the shape and the size. The shape of the flag should be appropriate for the purpose you're using it for, and the size should be appropriate for the boat you're flying it on. If you have any questions about boat flags, or if you need help choosing the right size or shape for your needs, please don't hesitate to contact us - we're always happy to help!

Boat Flag Sizes

The size of a boat flag also varies, but the most common boat flag size is 12 inches by 18 inches. This size is large enough to be seen from a distance, but not so large that it will be blown away in strong winds. This size is large enough to be seen from a distance, but not so large that it will be blown away in strong winds. A general rule is one inch of length for every foot in boat length. It doesn't need to be followed exactly, but gives a good guideline.

If you have a small boat, you may want to choose a smaller flag size. For example, a boat flag size of six inches by nine inches is often used on small boats. This size is still visible from a distance, but it won't overpower the boat or get blown away in strong winds.

It's also important to consider the wind conditions when choosing a boat flag size. If you know you'll be sailing in windy conditions, you may want to choose a larger flag size. A boat flag size of 18 inches by 24 inches is often used in windy conditions. This size will ensure that your flag is visible, even in strong winds.

Common Boat Flag Size and Shape Questions:

Question: What size flag do I need for a 30 foot boat?

Answer: A boat flag size of 18 inches by 24 inches is often used on boats this size.

Question: Can I fly a flag on a pontoon boat?

Answer: Yes you can! Pontoon boats are perfect vessels for flying flags .

Question: What size flag do you fly on a boat?

Answer: The most common boat flag size is 12 inches by 18 inches.

Question: What shape boat flag do I need?

Answer: The shape of the boat flag should be appropriate for the purpose you're using it for. The most common boat flag shape is rectangular.

Question: What is the difference between a boat flag and a boat pennant?

Answer: Pennants are long and narrow, and often have a pointed end. Pennants are often used to signal distress or indicate that a boat is entering or leaving port.

Question: How big is a standard boat flag?

Answer: They can be almost any size, we offer flags in 12" by 18" and 3' by 5'.

Question: Are nautical flags square or rectangle?

Answer: Boat flags come in a variety of shapes and sizes, but the most common boat flag shape is rectangular. Rectangular boat flags are typically used for decorative purposes . Square flags are used for signaling.

Question: What are the 3 sizes of the flag?

Answer: The three sizes of the flag are the width, height, and mast length.

Question: What flag do you put on a boat?

Answer: The only required flag for a boat in the US is The U.S. national ensign, sometimes called "50-star" or "Old Glory." It is the proper and preferred flag for all U.S. vessels. Your boat should wear it from 0800 until sunset, and when you enter or leave port during daylight or at night, weather and rig permitting. After that you can have fun boat flags , signal flags, club pennants, pirate flags , and just about anything else you can think of.

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Anchoring clearance, standing rigging clearance, running rigging clearance, deck hardware clearance, chandlery clearance, safety clearance, yacht flags sizing guide, traditional yard sizing for flags.

The yard sizing (traditional diagonal measurement) is nominal and may vary slightly due to the nature of the production/sewing process.

  • The Yard Size refers to the outside diagonal measurement, e.g. from the top corner of the hoist to the bottom corner of the fly end.
  • The fly is measured along the horizontal length, top or bottom.
  • The hoist is measured down the vertical length of the left-hand side next to the staff.
  • The Fly end is the opposite end to the hoist = the end that flies in the breeze.

The yard sizing (traditional diagonal measurement) is nominal and may vary slightly due to the nature of the production/sewing process.

Nominal length and height measurements are tabled in the guide below.

Selecting the appropriate size for your Courtesy Flags:

Generally, yachts up to about 60 feet (18 metres) in length look properly "dressed" with half yard (18" x 12" or 45x30cm) courtesy flags.

There is a smaller size range (12"x8") not available from Jimmy Green because these flags look insignificant from deck level when hoisted aloft.

There is an old rule of thumb for courtesy flags: a half inch on the fly for every foot of overall vessel length, e.g. 18 inches = ½ yard for a 36-foot yacht.

3/4 yard Courtesy Flags are available for larger yachts or skippers who wish to 'make a statement'.

What Size Ensign do I Need?

As a guide, your Ensign should be proportionate to the LOA and the style/design of the yacht.

An old rule of thumb for the size of your Ensign is an inch per foot of yacht length, but this may look rather small for modern yachts to look "well dressed".

The Ensign hoist measurement also needs to be compatible with the length of the flagstaff. i.e. The length of the flagstaff between the truck (head) and the cleat must be, at the very least, greater than the hoist measurement so there is sufficient room to tension the hoist line or halyard.

The gap between the bottom of the hoist and the cleat is a matter of personal choice.

A more modern interpretation of suitable Red Ensign yard size is suggested in the chart below, but...

Ultimately, the size of a Red Ensign is entirely up to the owner's discretion, and if it looks right, then it is right.

Flag Size Chart - Printed and Standard Sewn
Yard Size Finish Fly Hoist Staff Length Yacht LOA
1/2 Printed 48cm 32cm 60cm < 7m
3/4 Printed or Sewn 69cm 40cm 60/80cm 6-9m
1 Printed or Sewn 90cm 45cm 80/100cm 9-12m
1 1/4 Printed or Sewn 104cm 56cm 90/120cm 10-14m
1 1/2 Printed or Sewn 132cm 70cm 100/125cm 12-16m
2 Sewn 180cm 90cm 125/150cm 14-18m
2 1/2 Sewn 225cm 110cm > 1.5 metres 18m-20m
3 Sewn 274cm 137cm > 2 metres >20m
Flag Size Chart - Premium Sewn
Yard Size Fly Hoist Staff Length Yacht LOA
1/2 45cm 22cm 60cm < 7m
3/4 70cm 35cm 60-80cm 6-9m
1 93cm 46cm 80/100cm 9-12m
1 1/4 114cm 57cm 90/120cm 10-14m
1 1/2 143cm 75cm 100/125cm 12-16m
2 180cm 94cm 125/150cm 14-18m
2 1/2 225cm 110cm > 1.5 metres 18m-20m
3 274cm 137cm > 2 metres >20m

Flag Size Chart Glossary: Yard Size: the traditional method of measurement = length of the diagonal Finish: Sewn = individual panels stitched together to complete the flag

Finish: Printed =  one screen-printed piece of fabric Fly: nominal length, may vary slightly due to the nature of the production/sewing process Hoist: nominal height, may vary slightly due to the nature of the production/sewing process Staff Length: the length overall of the flagstaff N.B. the measurement between the truck and the cleat will be less than the overall length LOA = Yacht Length Overall

Flag Toggles

Top-quality wooden toggles are available at a reasonable cost and can be fitted to the loop at the top of the hoist if required:

Wooden Flag TOGGLES

Ensign on Roshni

A Yard and a Half Sewn Red Ensign on Roshni, Azuree 46

Ensign on Max

A Yard and a Half Printed Red Ensign on Max, Moody 47

Choosing between Printed and Sewn Flags:

Printed courtesy flags are generally accepted everywhere you may visit.

Sewn courtesy flags may prove far too expensive on an extended voyage.

Printed courtesy flags are lighter and therefore fly better in a light breeze.

However, there are two distinct schools of thought regarding your Red Ensign (or national flag), and either is acceptable.

  • Printed - is less than half the cost and ‘will soon be blown out anyway'.
  • Sewn - is the only proper flag to fly, will last longer and is worth 'every penny.'

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Flag Sizes for Boats | Nautical Flag Sizes | All Star Flags

Nautical Flag Sizing

Length of Boat Size of Private & Club Signal Size of Yacht Ensign
-20 ft 8" x 12" 12" x 18"
20 ft 10" x 15" 12" x 18"
25 ft 10" x 15" 16" x 24"
30 ft 12" x 18" 16" x 24"
35 ft 12" x 18" 24" x 36"
40 ft 14" x 21" 24" x 36"
45 ft 14" x 21" 24" x 36"
50 ft 16" x 24" 2.5' x 4'
55 ft 16" x 24" 2.5' x 4'
60 ft 20" x 30" 2.5' x 4'
70 ft 20" x 30" 3' x 5'
80 ft 24" x 36" 3' x 5'
90 ft 24" x 36" 4' x 6'
100 ft 30" x 48" 4' x 6'

20 ft 10" x 15" 16" x 24"
25 ft 10" x 15" 16" x 24"
30 ft 12" x 18" 24" x 36"
35 ft 14" x 21" 24" x 36"
40 ft 14" x 21" 24" x 36"
45 ft 16" x 24" 2.5' x 4'
50 ft 20" x 30" 2.5' x 4'
60 ft 20" x 30" 2.5' x 4'
70 ft 24" x 36" 3' x 5'
80 ft 24" x 36" 3' x 5'
90 ft 30" x 48" 4' x 6'
100 ft 30" x 48" 4' x 6'

By Chad Creech, All Star Flags

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The Proper Etiquette of Flying the American Flag on a Boat

Introduction, significance of the american flag, importance of proper etiquette, overview of topics covered, historical background of maritime flag etiquette, origin of maritime flag etiquette, evolution over time, american maritime flag traditions, when to fly the american flag on a boat, appropriate times, sunrise to sunset rule, special circumstances, proper positioning of the american flag, different types of vessels, flag pole and mount, size and ratio, displaying the flag respectfully, condition of the flag, other flags on board, disposal of worn flags, common mistakes to avoid.

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  1. How to Select and Display Boat Flags | West Marine

    Flags are flown, traditionally from 8:00 a.m. to sunset, from the stern staff (when under way or occupied), or onboard sailboats—on aftermost sail 2/3 length of the leach above the clew; onboard sportfisherman—on halyard just behind the tuna tower.

  2. Guide to Boat Flag Sizing - Gettysburg Flag

    For example, a 33-foot vessel would use a 24x36” yacht ensign with a private boat flag of 12x18”. To take the guesswork out of determining the correct boat flag size for your vessel, our flag experts put together the below Boat Flag Size Guides for Power Boats and Sailboats.

  3. The Definitive Guide To Boat Flag Shapes and Sizes

    The size of a boat flag also varies, but the most common boat flag size is 12 inches by 18 inches. This size is large enough to be seen from a distance, but not so large that it will be blown away in strong winds.

  4. Flag Size Guide | Knowledge Centre | Jimmy Green Marine

    Generally, yachts up to about 60 feet (18 metres) in length look properly "dressed" with half yard (18" x 12" or 45x30cm) courtesy flags. There is a smaller size range (12"x8") not available from Jimmy Green because these flags look insignificant from deck level when hoisted aloft.

  5. Flag Sizes for Boats | Nautical Flag Sizes | All Star Flags

    This page displays a nautical flag size chart for how big your flags should be per length of boat. View this flag sizes for boats chart at All Star Flags!

  6. Proper Etiquette of Flying a American Boat Flag | Allegiance

    The size of the American flag for a boat should be in harmony with the size of your vessel. A general guideline is that the flag's length should be one inch for every foot of your boat’s length. This ensures that the flag is neither too overpowering nor too diminutive.