Standard Poster Size in Inches | American Guerrilla Marketing

By Livy Phillips | American Guerrilla Marketing

If you are shopping for frames, ordering prints, or setting up a design file, you need exact inches. Not “medium” or “large.” Inches. Real dimensions you can type into your design software or hand to a print shop.

We run poster campaigns across the United States every week. We work with print vendors in New York, Los Angeles, Chicago, Miami, Houston, Seattle, and dozens of other markets. We know exactly which sizes printers stock, which sizes buyers request, and which sizes perform on the street.

This guide gives you the definitive list of standard poster sizes in inches, with context for each format so you can make the right decision for your campaign.

The Complete Table of Standard U.S. Poster Sizes in Inches

The two sizes that dominate the U.S. poster market are 18×24 inches and 24×36 inches. If someone says “standard poster,” they almost certainly mean one of those two. The 18×24 is the indoor default. The 24×36 is the outdoor and large-format default.

Breaking Down Each Standard Size

11 x 17 Inches

Sometimes called tabloid size, this is the small end of the poster spectrum. It prints on any commercial printer that handles tabloid paper. It fits on most bulletin boards without dominating the space. It is affordable enough to print 200 to 500 copies for a hyper-local campaign. The downside is readability at distance. Beyond 6 to 8 feet, small text on an 11×17 disappears. Keep headlines large and body text minimal.

18 x 24 Inches

This is the standard poster size in the U.S. It is the size most people picture when they think of a poster. It works on venue windows, bulletin boards, bare walls, and any flat indoor surface with at least 18 inches of horizontal clearance. It reads from 10 to 15 feet away with proper headline sizing. It is affordable to print in quantities from 25 to 1,000 pieces. Most framing options at retailers like IKEA, Target, and art supply stores are built around this size.

22 x 28 Inches

This size dominates retail floor stands and point-of-purchase displays. It is slightly larger than the 18×24 standard but proportioned differently. The 22-inch width matches the slot size on most standard floor stand display hardware. If you are doing in-store promotions, this is the size to use. It is not as common for event or street campaign posters, but it is a true industry standard in the retail world.

24 x 36 Inches

This is the large standard. It is the format we recommend for outdoor placements in dense urban environments. It reads from 20 to 30 feet away. It fills a standard store window or doorway. It commands attention on a fence or wall. Print shops that specialize in large-format printing often treat this as their default output size. Film festival posters, club event graphics, and brand awareness campaigns frequently use this format.

27 x 40 Inches

The movie one-sheet. This is an industry-specific format that has been standard in the U.S. film industry for decades. Theaters, lobby display cases, and transit advertising installations are designed around these exact dimensions. If you are in the entertainment industry or want that cinematic feeling in your poster campaign, this is the size to use. It is not stocked at most print shops, so expect slightly higher costs or longer lead times.

36 x 48 Inches

This is the wide-format standard for trade shows, exhibitions, and large outdoor placements. At three feet by four feet, this poster demands attention. It requires wide-format printing equipment and typically comes out on photo paper, vinyl, or fabric rather than standard poster stock. If you are filling a large booth backdrop or covering a significant wall area, that’s where you start.

The Two Sizes You Need to Know
18×24 for indoor, standard campaigns. 24×36 for outdoor and high-visibility placements. These two sizes cover the vast majority of poster campaigns in the United States. Master both and you have the market covered.

Standard Poster Sizes in Inches vs. Metric Equivalents

If you are printing for international distribution or working with vendors who use metric measurements, here is the conversion guide:

Note that U.S. standard poster sizes do not perfectly align with ISO A-series sizes. If you send a 24×36 file to a European print shop, it may not print cleanly on A1 without minor adjustments to the artwork or page setup. Always confirm the exact target size in inches or millimeters with any printer, domestic or international.

Recommended Paper Stocks for Standard Poster Sizes

Paper stock affects how your poster looks and how long it lasts. Here are our recommendations by size:

Outdoor Poster Stock Warning
Paper stock alone is not weatherproof. Any poster placed outdoors on paper stock will start degrading within hours in wet conditions. For outdoor placements, use a UV laminate over the print, or switch to vinyl or weather-resistant media. A laminate adds roughly $0.50 to $2.00 per piece but can extend the life of your poster from days to weeks.

Resolution Requirements by Poster Size

Every inch of poster width and height requires a corresponding number of pixels in your design file. Here is the math at standard print resolutions:

For most street-level poster campaigns where viewing distance is 10 feet or more, 150 DPI is adequate. Use 300 DPI for close-reading applications like lobby posters, trade show displays, or gallery prints.

How to Brief a Print Shop on Standard Poster Size

A vague print order wastes money and time. When you hand a print spec to any shop, include these details:

• Exact finished size in inches: Say “18×24 inches finished size” not “standard poster.” Different people in different shops have different ideas of what “standard” means.
• Orientation: Portrait or environment. Portrait is tall (18 wide, 24 tall). environment is wide (24 wide, 18 tall). Never assume they’ll pick the right one.
• Bleed: Specify whether your file includes bleed and how much. Standard bleed is 0.125 inches on all sides. If you don’t have bleed in your file, tell the printer so they don’t try to add it.
• Paper stock and coating: Name the exact stock you want or ask for their recommendation for your use case. Don’t just say “the good paper.”
• Color mode: CMYK for print. If you submit an RGB file, the printer will convert it and the colors may shift. Design in CMYK from the start or convert before sending.
• Quantity: Be specific. “A hundred or so” creates uncertainty on the invoice. Say exactly 100, 150, or 200.
• Turnaround requirement: Standard is 5 to 7 business days. Rush is 1 to 3. Rush costs more. Know your date and communicate it upfront.

Getting these details right in the initial brief prevents reprints, delays, and arguments about whether the colors were supposed to look that way.

Choosing the Right Standard Size for Your Campaign Goal

The standard sizes are a menu. The right choice comes from the specific goal of your campaign. Here’s a quick decision guide:

If you want neighborhood saturation

Use 18×24 at high volume. Print 300 to 500 pieces. Place them in windows, on walls, in venues, and on any surface where you have permission. More placements create more repetition, and repetition drives awareness. The 18×24 keeps cost per unit low enough to print the volume you need.

If you want high-impact landmark placements

Use 24×36 at strategic locations. Fewer pieces, higher visibility per placement. A single 24×36 on the right wall on Bedford Avenue in Williamsburg or on Fairfax in LA does more than 20 misplaced 18x24s. Quality of location matters more than volume of posters when you go large.

If you want retail shelf and display presence

Use 22×28 for floor stands and 11×17 for counter frames and window slots. Match the size to the hardware that’s already in the store. Don’t order a size that won’t fit the display unless you’re supplying the display hardware too.

If you want a collectible or art-quality piece

Use 18×24 on heavy stock with spot UV or foil. The format is right for collector culture, especially in music and entertainment. The production quality communicates value. A high-quality 18×24 feels like something to keep. A basic 24×36 on cheap stock feels like something to tear down next week.

Standard Poster Sizes for Specific NYC Neighborhoods

New York City is one of the most active outdoor poster markets in the world. The city’s density and foot traffic make it ideal for poster campaigns, but the specific surfaces and sight lines in each neighborhood affect which standard size performs best.

Lower East Side and East Village: These neighborhoods have heavy poster activity on construction boards, plywood-covered storefronts, and painted walls. The 24×36 is standard here. The audience is young, creative, and highly attuned to street-level promotion. Competition is intense on the best walls, so size up rather than down. Your 24×36 needs to hold its own next to other campaigns for the same wall space.

Brooklyn: Williamsburg, Bushwick, Greenpoint. These neighborhoods have some of the best flat-surface real estate in the city for outdoor posters. Long sections of wall along the BQE, construction site boards on Bedford Avenue, and plywood facades throughout East Williamsburg all accommodate 24×36 comfortably. The audience responds to strong design. Go 24×36 outdoors, 18×24 inside bars and venues along the Bedford corridor.

Harlem and Washington Heights: Commercial corridors along 125th, Lenox, and Amsterdam see heavy foot traffic and are legitimate marketing real estate. The 24×36 works well here for outdoor posts. For indoor placements in barbershops, restaurants, and community spaces throughout these neighborhoods, 18×24 is the standard size.

The Bronx: Fordham Road, Grand Concourse, and the commercial strips in the South Bronx are underused by brands relative to how much foot traffic they see. The 24×36 works on the walls. Print shops in the Bronx routinely handle this size. Visibility for a campaign here can be exceptional relative to the cost.

Queens: Flushing and Astoria. Dense commercial corridors with high daily foot traffic. The standard 24×36 works on most posting surfaces. Note that Flushing especially has a large multilingual audience. If your campaign speaks to that audience, language and cultural specificity matter as much as size.

Manhattan below 14th Street: SoHo, Tribeca, and the Financial District have tighter surface availability due to building ownership patterns and property management. Permitted window placements at 18×24 are often more accessible here than outdoor wall placements. For SoHo street campaigns, construction site boards and scaffolding walls remain the best outdoor surfaces for 24×36.

What to Do When Your Design Doesn’t Fit a Standard Size

Sometimes a design concept doesn’t map neatly onto a standard poster size. Maybe the imagery is horizontal. Maybe the content requires a proportionally different canvas. When that happens, you have a few options.

Redesign for the standard. This is almost always the right move if the campaign requires high-volume printing at standard display hardware. A design adapted to the standard size will be cheaper to print, easier to frame, and compatible with the display infrastructure at your placement locations. If the content can work in a standard format, adapt it.

Print custom and own the logistics. If the design absolutely requires a non-standard proportion, print it as a custom size and bring your own display hardware. This is the right approach for events, trade shows, or branded installations where you control the entire environment. It’s more expensive but gives you full design freedom.

Use the non-standard format as a design feature. Sometimes a non-standard poster size is itself part of the campaign’s identity. A tall narrow poster on a specific type of pole, a wide horizontal banner at a specific venue, a square format in a window grid. When the format choice is intentional and communicates something, it can work in your favor. When it’s just a design that didn’t get adapted, it looks like a mistake.

Test before committing to a print run. Print a single proof at full size before ordering 500 pieces. Tape it to the actual wall where it will be placed. Walk 20 feet back and see what you see. What reads clearly? What disappears? Is the scale right for the environment? A physical proof in the real location reveals things that a monitor can’t show you. It takes an hour and costs a few dollars. It can save an entire campaign from a bad size decision.

What is the standard poster size in inches?

The most common standard poster sizes in inches are 18×24 and 24×36. The 18×24 is the default for indoor events and venues. The 24×36 is the default for outdoor and large-format campaigns. Both are widely stocked by print shops across the United States.

What size is a movie poster in inches?

A standard U.S. movie one-sheet poster is 27 inches by 40 inches. This format has been the industry standard for decades and is used by theaters, lobbies, and transit advertising installations throughout the country.

Is 18×24 or 24×36 a better standard size?

It depends on your placement. For indoor venues, windows, and bulletin boards, 18×24 is usually the better choice. For outdoor surfaces, high-traffic corridors, and large display walls, 24×36 delivers more impact. Many campaigns use both sizes.

What is the 22×28 poster size used for?

The 22×28 is the standard retail signage size. It fits in most commercial floor stand display hardware used in grocery stores, pharmacies, and big-box retailers. If you are doing a retail in-store promotion, this is the size you need.

How do I convert standard U.S. poster sizes to metric?

Multiply inches by 25.4 to get millimeters. An 18×24 poster is 457x610mm. A 24×36 is 610x914mm. These do not align perfectly with ISO A-series sizes, so confirm exact target dimensions with any international print vendor.

What paper stock should I use for a standard 18×24 poster?

100 lb gloss text is the most popular stock for 18×24 poster printing. It prints vivid colors, holds up well in indoor conditions, and is widely available at commercial print shops. For outdoor use, add a UV-resistant laminate to any stock.

What resolution do I need for a standard 24×36 poster?

Design your 24×36 poster at 150 DPI for viewing distances of 10 feet or more. That requires a file that is 3,600 by 5,400 pixels. For close-up gallery-quality viewing, use 300 DPI, which requires 7,200 by 10,800 pixels.

Can I print any poster size at a standard print shop?

Standard print shops stock equipment for 11×17, 18×24, and 24×36. For 27×40 and larger, you may need a specialized large-format print shop. Always confirm size availability and minimum order quantities before committing to a format.

What bleed should I add when setting up a standard poster file?

Standard bleed for most poster printing is 0.125 inches (1/8 inch) on all sides. Add bleed to the trim size to get your document setup size. An 18×24 with bleed is set up at 18.25 x 24.25 inches. Keep critical artwork and text at least 0.25 inches inside the trim line to avoid anything getting cut off at the press.

What is the best standard poster size for an album release campaign?

Music album release campaigns typically use both 18×24 and 24×36. The 18×24 goes inside bars, record shops, and venue bathrooms. The 24×36 goes on walls, scaffolding, and construction boards in neighborhoods relevant to the artist’s fanbase. Some campaigns also use 11×17 for dense bulletin board coverage near college campuses and coffee shops. The combination of sizes creates layered coverage that hits the target audience in multiple contexts.

Should I design poster files in RGB or CMYK?

Design in CMYK for any poster intended for print output. RGB is for screens. When a printer converts RGB to CMYK, colors can shift , sometimes significantly. Neon colors and electric blues are especially prone to muting. Design in CMYK from the start, proof on a calibrated monitor, and request a physical proof before committing to a full print run if color accuracy is critical.

Frequently Asked Questions