American flag sizes: standard dimensions, official proportions, and flagpole pairing

What are the most common American flag sizes?

From miniature tabletop sticks to monument banners outside public buildings, a core group of standard sizes covers residential, ceremonial, and commercial settings.

Flag Size (Hoist x Fly)	Ratio	Common Use Case	Typical Pole or Staff Pairing
4 x 6 in	1:1.5	Desk flag, classroom holder, or parade hand-out	10-inch wooden or plastic desk staff
8 x 12 in	1:1.5	Executive desk display, podium, or grave marker	18-inch wooden or plastic staff
2.5 x 4 ft	1:1.6	Small porches, townhomes, columns, and balconies	5-foot angled wall-mount porch pole
3 x 5 ft	1:1.67	Standard residential home flag	6-foot wall-mount pole or 15–20 ft in-ground pole
4 x 6 ft	1:1.5	Large residential yards and neighborhood entrances	20–25 ft in-ground flagpole
5 x 8 ft	1:1.6	Estates, municipal buildings, and commercial lots	25–30 ft in-ground flagpole
5 x 9.5 ft	1:1.9	Federal Size 5 (executive agency specification)	Federal agency flagpoles
6 x 10 ft	1:1.67	Commercial plazas, campuses, and multi-story buildings	35–40 ft in-ground flagpole
8 x 12 ft	1:1.5	Tall highway or industrial flagpoles	45–50 ft in-ground flagpole

3 x 5 ft: the standard residential American flag

The 3-by-5-foot banner (36 by 60 inches) is the everyday benchmark for American homes. It is light enough to fly cleanly from a 6-foot aluminum, fiberglass, or wooden pole mounted at a 45-degree angle on a porch column, and large enough to be clearly visible from the street when hoisted on a 15-to-20-foot front-yard flagpole.

2.5 x 4 ft: compact porch and balcony flags

Measuring 30 by 48 inches, the 2.5-by-4-foot flag is nine inches shorter in height and a foot shorter in length than a 3-by-5-foot banner. Flagmakers recommend this size for 5-foot house-mounted poles, narrow townhome stoops, porch railings overhung by low eaves, or walkways where a 5-foot fly would snag on branches or siding. Keeping the fly end clear of surfaces helps you follow the rule in how to display the American flag against letting the flag brush objects beneath it.

4 x 6 ft and 5 x 8 ft: tall residential and commercial poles

Once an in-ground flagpole reaches 20 to 30 feet, a 3-by-5-foot banner can look small against a two-story roofline or open sky. A 4-by-6-foot flag (48 by 72 inches) provides 24 square feet of cloth, making it the preferred choice for 20-to-25-foot poles. A 5-by-8-foot flag (60 by 96 inches) provides 40 square feet of cloth and is widely used on 25-to-30-foot residential estate poles, post offices, schools, and businesses.

5 x 9.5 ft: the official federal Size 5 flag

The 5-by-9.5-foot flag (60 by 114 inches) is authorized as Size 5 in Part II, Section 21 of Executive Order 10834, following the exact 1:1.9 federal ratio. As noted in our guide on how to fold an American flag, the traditional folding procedure described by the Department of Veterans Affairs folds the flag lengthwise twice and then continues with triangular folds from the striped end until the entire length of the flag is folded into a triangle with only the blue field visible.

Desk flags and miniature hand-held flags (4 x 6 in and 8 x 12 in)

For indoor desks, classrooms, naturalization ceremonies, and holiday parades, manufacturers produce miniature flags mounted on small staffs topped with a spearhead finial:

• 4 by 6 inches: The standard office desk size, mounted on a 10-inch plastic or wooden staff that fits into weighted desk stands.
• 8 by 12 inches: Mounted on an 18-inch staff for larger executive desks, lecterns, and veterans’ grave markers on Memorial Day and Veterans Day.

Official 1:1.9 proportions in Executive Order 10834

For more than a century after the Continental Congress adopted the first national banner in 1777 (traced in our history of the American flag), federal law did not mandate a single geometric ratio. President William Howard Taft signed the first standardization orders (Executive Orders 1556 and 1637) in 1912 for the 48-star flag. When Alaska and Hawaii entered the Union in 1959, President Dwight D. Eisenhower issued Executive Order 10834 (printed with its attachment table in the notes to 4 U.S.C. § 1) on August 21, 1959, establishing the design and dimensions of the 50-star flag effective July 4, 1960.

Part I: Standard proportions of the flag, union, stripes, and stars

Part I, Section 1 of Executive Order 10834 states that the flag of the United States shall have thirteen horizontal stripes, alternate red and white, and a union consisting of white stars on a field of blue. Section 2 provides that the positions of the stars shall be as indicated on the attachment to the order, and Section 3 specifies that the dimensions of the constituent parts of the flag shall conform to the proportions set forth in that attachment relative to the flag’s vertical hoist (A = 1.0):

Letter Code	Element in Executive Order 10834	Official Ratio (Hoist = 1.0)	Fractional Equivalent
A	Hoist (width/height) of flag	1.0	1
B	Fly (length) of flag	1.9	1 9/10
C	Hoist (width/height) of Union (blue field)	0.5385	7/13 (spans 7 stripes)
D	Fly (length) of Union	0.76	2/5 of total fly
E, F	Top/bottom Union margin and vertical row spacing	0.054	Decimal standard
G, H	Side Union margin and horizontal star spacing	0.063	Decimal standard
K	Diameter of star across its five points	0.0616	Approx. 4/5 of stripe width
L	Width of each stripe	0.0769	1/13 of hoist

Under these proportions, the blue union spans the top seven stripes (four red and three white), resting atop the fourth white stripe, and stretches two-fifths (40 percent) of the way across the flag’s length. Inside the union, the fifty five-pointed stars sit in nine horizontal staggered rows alternating between six and five stars (6-5-6-5-6-5-6-5-6), with one point of each star pointing straight upward.

Part II: The 11 official federal agency flag sizes

Part II, Section 21 of Executive Order 10834 authorizes eleven standard sizes for national flags and union jacks manufactured for federal executive agencies:

1. Size 1: 20.00 ft hoist by 38.00 ft fly (garrison flag flown on holidays at military posts)
2. Size 2: 10.00 ft hoist by 19.00 ft fly (post flag)
3. Size 3: 8.95 ft hoist by 17.00 ft fly
4. Size 4: 7.00 ft hoist by 11.00 ft fly
5. Size 5: 5.00 ft hoist by 9.50 ft fly (federal Size 5)
6. Size 6: 4.33 ft hoist by 5.50 ft fly (military marching and parade color guards)
7. Size 7: 3.50 ft hoist by 6.65 ft fly
8. Size 8: 3.00 ft hoist by 4.00 ft fly
9. Size 9: 3.00 ft hoist by 5.70 ft fly (1:1.9 federal counterpart to a 3x5 ft flag)
10. Size 10: 2.37 ft hoist by 4.50 ft fly
11. Size 11: 1.32 ft hoist by 2.50 ft fly (small boat and vehicle flags)

Three sizes in the federal schedule, Sizes 4 (7 x 11 ft), 6 (4.33 x 5.50 ft), and 8 (3 x 4 ft), depart from the 1:1.9 ratio for marching or ceremonial clearance; under Section 22, their unions and stars are scaled proportionally.

How to match flag size to flagpole height (rule of thumb)

Neither the U.S. Flag Code nor Executive Order 10834 mandates what size flag a citizen must fly on a given pole. Instead, The American Legion and the congressional publication Our Flag (House Document 108-97) provide practical guidance for matching a flag to its pole:

• For in-ground flagpoles: As a general rule of thumb cited by The American Legion, the horizontal length (fly) of the flag should be about one-fourth (1/4) the height of the flagpole, based on tradition and common practice.
• For house-mounted angled poles and indoor standing poles: As noted in Our Flag, flags flown from angled poles on homes and those displayed on standing poles in offices and indoor displays are usually either 3 by 5 feet or 4 by 6 feet, while color guards usually carry flags measuring 4 by 6 feet.

The table in Our Flag (House Document 108-97, p. 21) lists the following recommended flag sizes by exposed flagpole height:

• 20-foot pole: 4 x 6 ft flag (or 3 x 5 ft under the one-fourth rule of thumb)
• 25-foot pole: 5 x 8 ft flag
• 40-foot pole: 6 x 10 ft flag
• 50-foot pole: 8 x 12 ft flag
• 60-foot pole: 10 x 15 ft flag
• 70-foot pole: 12 x 18 ft flag
• 90-foot pole: 15 x 25 ft flag

Wind load and flying two flags on one pole

A flag acts like a sail in the wind. Stepping up from 3 by 5 feet (15 square feet) to 4 by 6 feet (24 square feet) increases surface area by 60 percent, and a 5-by-8-foot flag (40 square feet) more than doubles the pull on the halyard, snap hooks, and pole shaft. In windy coastal or hilltop areas, manufacturers advise choosing the smaller size listed for your pole height.

When flying the U.S. flag with a state or POW/MIA flag on the same halyard, manufacturers recommend a lower flag that is the same size as, or one standard size smaller than, the U.S. flag at the peak.

Grommets vs. pole sleeve: choosing the right attachment style

In the 2.5-by-4-foot and 3-by-5-foot residential sizes, flags are finished with either a canvas header and grommets or a pole sleeve (pole hem).

Canvas header and brass grommets

A grommeted flag has a heavy white canvas or webbing strip sewn along the hoist edge with two brass rings (grommets) at the top and bottom corners. Larger commercial flags (8 by 12 feet and up) use reinforced rope thimbles or D-rings.

• Best for: All in-ground halyard flagpoles using swivel snap hooks, plus 5-foot and 6-foot house-mounted poles fitted with rotating mounting rings.
• Advantages: Grommets let the flag spin on anti-wrap rings in shifting winds and make it easy to lower the flag to half-staff, as covered in our half-staff flag etiquette guide.

Pole sleeve (pole hem)

A pole-sleeve flag replaces the white canvas header and grommets with a vertical fabric tube sewn along the hoist edge, open at the top and bottom, with a small leather tab stitched inside the top edge.

• Best for: Fixed outrigger porch poles and indoor ceremonial staffs. You remove the top ball or eagle finial, slide the sleeve over the pole, secure the internal leather tab under the top clip or finial screw, and replace the ornament.
• Advantages and limits: A pole sleeve creates a clean banner edge along the pole and is standard for gold-fringed indoor flags, but it cannot clip to a halyard rope or lower to half-staff on an angled pole without sliding the flag down the shaft.

Indoor vs. outdoor flag fabrics: nylon, polyester, and cotton

Under 4 U.S.C. § 6(c), the Flag Code states that the flag should not be displayed during inclement weather unless an all-weather flag is used.

Outdoor nylon (200-denier)

Filament nylon (woven at 200 denier) is the standard all-weather outdoor fabric for residential display. It combines high strength with light weight so a 3-by-5-foot flag catches gentle breezes, sheds water quickly after rain, and holds bright red and royal blue dyes in sunlight.

Outdoor two-ply spun polyester

Heavy-duty two-ply spun polyester is engineered for high-wind regions, coastal exposure, 24-hour display, and tall poles flying 5-by-8-foot or larger flags. Its open weave lets strong gusts pass through with less whip at the fly end and has a matte finish resembling cotton, though its heavier weight requires a stronger breeze to unfurl than nylon.

Traditional cotton and indoor rayon

Heavyweight 100 percent cotton bunting offers deep, non-reflective colors and a classic texture suited for shadow-box keepsakes, indoor displays, and fair-weather ceremonies. Because cotton absorbs rainwater and fades or frays faster in wind and sun, it is not an all-weather outdoor fabric. Full-size indoor flags with gold fringe typically use ceremonial nylon or rayon, while miniature 4-by-6-inch and 8-by-12-inch desk flags use smooth polyester, rayon, or cotton.