Standard Poster Sizes Explained: Which One Should You Print?

The most useful poster sizes are 11×17 for handouts and bulletin boards, 18×24 for retail and event posters, 24×36 for window and wall display, and 27×40 for movie style one sheets. Because large format printing charges by area rather than by preset size, the smarter question is which size fits your frame, your wall and your viewing distance, and the 1 inch of letter height per 10 feet of distance rule decides the last part.

Key takeaways

• 18×24 is the workhorse: big enough for a headline readable across a room, small enough to fit standard frames and foam board mounting.
• 24×36 is the standard for storefront windows and street facing walls.
• 27×40 is the movie one sheet format, ideal when you want a cinematic look in off the shelf poster frames.
• International A sizes, A2 at 16.5×23.4 and A1 at 23.4×33.1, come up for imported frames and academic events; custom printing handles them exactly.
• Resolution needs drop with viewing distance: 150 dpi at final size is fine for wall posters. File setup is covered in our DPI guide.

What are the standard poster sizes?

How do you choose between 18×24 and 24×36?

1. Measure the space and any frame first. A frame decides for you.
2. Apply the distance rule from our letter height guide: viewers at 20 feet need roughly 2 inch letters, which sit comfortably on 24×36 but crowd an 18×24 that also carries body text and imagery.
3. Consider the wall. A 24×36 on a large empty wall looks intentional; the same poster in a narrow hallway overwhelms it.
4. Price the difference. Posters are billed by area, so a 24×36 is roughly double an 18×24, still one of the cheapest large graphics you can buy. The billing logic is explained in what drives large format print cost.

What file setup does a poster need?

Posters forgive more than people fear. At arm’s length viewing, 150 dpi at final print size looks sharp, and wall posters viewed from across a room stay clean well below that; the full math is in what DPI do you actually need. Build text and logos as vectors when possible, per vector vs raster artwork, and let our free artwork check catch problems before printing. If your file is slightly off proportion for the target size, we fix it at no charge.

When should you upgrade from paper poster to rigid or canvas?

• Reusable event signage: mount the graphic on foamcore for lightweight easel display, at 105.00 dollars per 48×96 sheet single sided you can gang several posters per sheet.
• Outdoor exposure: paper fails outside; step to coroplast or PVC for the same artwork.
• Decor and gallery walls: canvas prints give texture and no glare.
• Backlit or window display: translucent films and window graphics do the job posters cannot.

Print your poster

The custom poster builder takes any dimension, standard or custom, quotes instantly and ships free next day after 24 hour production on most orders. Design from scratch in the free Sign Designer if you are starting with nothing but an idea.

Frequently asked questions

What is the most popular poster size?

18×24 inches for general use, with 24×36 the standard step up for windows and walls viewed from farther away.

What size is a movie poster?

The standard US one sheet is 27×40 inches. Frames for this size are widely available, which makes it a favorite for lobby and home theater decor.

What resolution should a poster file be?

150 dpi at final print size is the practical target for posters viewed at arm’s length or farther; 300 dpi adds file weight with little visible gain at poster distances.

Can I print a poster in a custom size?

Yes. Large format printing is billed by area, so a 20×30 or an A1 prints as easily as stock sizes. Size to your frame or wall.