Standard Brochure Size Guide for US Letter, A4 and More
Compare US Letter, A4, and the popular fold layouts side by side, then set your flat size and fold first so your finished dimensions, reading order, and envelope all line up.
The standard brochure size in the US is 8.5 by 11 inch US Letter. Tri-folded it closes to 3.67 by 8.5 inches and fits a number 10 envelope, and a bi-fold on the same sheet gives a wider 5.5 by 8.5 inch page. The international standard is A4 at 210 by 297 mm, which is 8.27 by 11.69 inches. Pick US Letter or A4 as your flat size, choose a fold, and your finished dimensions and layout fall into place.
Quick tips
Quick tips for choosing a standard brochure size
Pick your flat size and fold before you design. Use 8.5 by 11 US Letter tri-folds for mailers that fit a number 10 envelope, A4 for international audiences, legal or Z-folds for copy-heavy menus, and half-letter bi-folds for quick handouts. Add 0.125 inch bleed, keep text inside the safe zone and off the fold lines, work at 300 DPI, and export in CMYK. 4OVER4.COM scores, folds, and trims every order so your chosen size arrives ready to hand out.
Why standard brochure dimensions matter before you design
Size is the first decision in any brochure, not the last. Pick your flat dimensions before you draw a single panel, because the flat size and the fold together set your finished layout, your reading order, and even the envelope your brochure ships in. Get it right and everything downstream falls into place. Get it wrong and your copy runs off the panel, a fold lands in the middle of a headline, or the finished piece will not fit its mailer.
This guide covers the standard brochure sizes you will actually use, starting with US Letter and A4, the dimensions each one folds down to, and the file setup that keeps panels lined up. Whether you are printing a restaurant menu, a real estate flyer, or a trade show handout, the same rules apply. To see how the folds themselves behave, our guide on how to fold a brochure pairs perfectly with the sizing here, and the online designer lets you build the whole thing in the browser.
Working on related pieces for the same campaign? Learn how to make flyers that share your brochure file setup, or browse ready-made layouts in our design templates. The neighboring decisions, from paper weight to finish, live in our guide hub.
The US Letter standard and its folded dimensions
In the United States and Canada, the standard brochure size is US Letter at 8.5 by 11 inches. It uses the same sheet as everyday office printing, so it is affordable, easy to design around, and stocked everywhere. That is why it rules mailers, menus, and trade show handouts.
The fold decides the finished layout. Tri-folded, an 8.5 by 11 sheet closes to a slim 3.67 by 8.5 inch panel that slides into a number 10 business envelope, which makes it the workhorse of direct mail. Bi-folded, the same sheet gives you a wider, book-like 5.5 by 8.5 inch page that suits image-led layouts. A legal 8.5 by 14 sheet adds two inches of panel when you need more room for a long menu or service list.
All of these print through 4OVER4.COM brochure printing, so once you settle on US Letter and a fold you can move straight to stock and finish. Want the full build first? Read how to make brochures for the end-to-end walkthrough.
A4 and the international ISO standard
Outside North America, the standard is A4 at 210 by 297 mm, which works out to 8.27 by 11.69 inches. A4 is part of the ISO 216 system, where each size is exactly half the one above it, so an A3 sheet bi-folds neatly into an A4 page and an A4 sheet folds down to A5. If your brochure is heading to Europe, the UK, Australia, or most of Asia, design to A4 rather than US Letter so it fits local racks, folders, and envelopes.
The folds map across cleanly. A tri-fold A4 closes to roughly 99 by 210 mm, about 3.9 by 8.27 inches, and a bi-fold A4 gives a 148 by 210 mm half page. The panel math is the same as US Letter, just in millimeters. If you print for both markets, keep two master files so text never has to be squeezed to fit the wrong dimensions, and let how to mail brochures match each size to its envelope.
Standard flat sizes and their folded layouts
Almost every brochure starts from one of a handful of standard flat sizes, and each has a natural job. Knowing the job saves you from over-designing a format that will not hold your content or ship the way you need. The reference table below the sections lists exact dimensions, but here is how the common layouts break down.
- US Letter 8.5 x 11 in. The default. Tri-folds to 3.67 by 8.5 inches for mailers, bi-folds to 5.5 by 8.5 inches for image-led pieces.
- A4 210 x 297 mm. The international standard. Tri-folds to about 99 by 210 mm.
- Legal 8.5 x 14 in. Two extra inches of panel for menus and copy-heavy sales sheets, usually a Z-fold or tri-fold.
- Tabloid 11 x 17 in. A booklet-style spread. Bi-folds to a full 8.5 by 11 page for catalogs and property listings.
- Half letter 5.5 x 8.5 in. Compact programs, price cards, and quick giveaways.
- Rack 4 x 9 in. The classic rack card sized to drop into standard display racks.
Every one of these prints, scores, and folds through 4OVER4.COM folded brochures, so the finished dimensions arrive exactly as planned.
The tri-fold layout, panel by panel
When someone says brochure, they usually picture a tri-fold. On a US Letter sheet it folds down to roughly 3.67 by 8.5 inches, giving you six panels to work with: a front cover, a back, and four inside faces that reveal in sequence as the reader opens it. On A4 the same layout closes to about 99 by 210 mm.
The detail that trips people up is the inner panel. The panel that tucks inside is cut about 1/16 to 1/8 inch narrower than the outer panels, so the brochure closes flat instead of buckling at the spine. Design that panel a touch smaller and keep its critical text well inside the safe zone. If you need more room, step up to a legal 8.5 by 14 tri-fold, the standard move for restaurant menus and clinics with long service lists.
Prefer to skip the panel setup? Start from a ready-made medical brochure template that already has the panels and fold marks in place, then drop in your content.
Bi-fold, Z-fold, and gate fold layouts
Beyond the tri-fold, three standard layouts give you different ways to open a brochure. A bi-fold has a single center fold that creates four panels and a wider, book-like page, so a US Letter sheet closes to 5.5 by 8.5 inches. It reads like a small booklet, which makes it the natural choice for image-led layouts and portfolios.
A Z-fold folds like an accordion, so every panel is the same width and the whole piece pulls open in one motion to show all three inside faces at once, ideal for step-by-step content and timelines. A gate fold folds two outer panels inward to meet in the middle, creating a dramatic reveal that works well for launches and premium brand pieces. Because the innermost panels get slightly narrower on gate and roll folds, size them down by 1/16 to 1/8 inch each so they nest cleanly.
Building a matching set? Pair a bi-fold with free business cards so your leave-behind and your handout share the same look, or scale the campaign with direct mail brochures that handle the fold and the mailing spec together.
Bleed, safe zone, and file setup for any size
Once you know your finished size and fold, set the file up correctly so the print matches the plan. Three measurements matter, and they are the same across every standard brochure size, whether US Letter or A4.
- Trim size: the final, folded-flat dimension after cutting. This is the size you have been choosing.
- Bleed: an extra 0.125 inch of artwork past the trim on all sides, so backgrounds run edge to edge without white slivers.
- Safe zone: keep text and logos at least 0.125 inch inside the trim and away from every fold line, so nothing is cut off or lost in a crease.
Work at 300 DPI minimum and export in CMYK, not RGB, so your colors print the way they look on screen. Mark your fold lines on a separate guide layer and confirm each panel width matches your fold plan before you export. The easiest path is to start from a real estate brochure template or browse our design templates with the bleed, safe zone, and fold marks already built in. Choosing stock too? The best paper types for brochure printing guide covers weight and finish.
How to choose the right standard size and layout
The right standard size comes down to three questions: how much content you have, how it will be handed out or mailed, and how you want the reader to move through it.
Match the size to the content. A short pitch with a few images fits a half-letter bi-fold. A full menu or a detailed service list wants a legal tri-fold or a Z-fold. Do not force long copy onto a small format, and do not blow up thin content to fill a tabloid spread.
Match the size to distribution. Mailing it in the US? A US Letter tri-fold fits a number 10 envelope. Shipping internationally? A4 fits local mailers. Racking it? A 4 by 9 rack card is built for the slot.
Still weighing options? Compare folds in common brochure sizes and fold options, learn what a brochure is from the ground up, or round out the campaign with a matching custom magnet, a set of 3D postcards, or a green printing stock. Keep the rest of your gear sharp too, right down to how to clean rubber stamps and how to make envelopes for the mailer.
Reference
Standard brochure sizes at a glance
Flat sheet, typical folded dimensions, and the job each size does best. Every size prints, scores, and folds through 4OVER4.COM brochure production.
| Flat size | Folded to | Best for |
|---|---|---|
| 8.5 x 11 in (US Letter) | Tri-fold: 3.67 x 8.5 in · Bi-fold: 5.5 x 8.5 in | The US standard. Fits a number 10 envelope tri-folded, ideal for mailers and handouts. |
| A4, 210 x 297 mm | Tri-fold: 99 x 210 mm · Bi-fold: 148 x 210 mm | The international ISO standard used across Europe, the UK, and Asia. |
| 8.5 x 14 in (Legal) | Z-fold: 4.67 x 8.5 in · Tri-fold: 4.67 x 8.5 in | More panels for menus, service lists, and detail-heavy sales sheets. |
| 11 x 17 in (Tabloid) | Bi-fold: 8.5 x 11 in · Roll fold: 4.25 x 11 in | A full booklet-style spread for real estate and product catalogs. |
| A3, 297 x 420 mm | Bi-fold: 210 x 297 mm (A4) | The ISO booklet size that folds cleanly down to an A4 page. |
| 5.5 x 8.5 in (Half letter) | Bi-fold: 4.25 x 5.5 in | Compact event programs, price cards, and quick giveaways. |
| 9 x 12 in | Bi-fold: 6 x 9 in · Tri-fold: 4 x 9 in | A slightly larger, upscale format that stands out in a stack. |
| 4 x 9 in (Rack) | Flat rack card | The classic rack card that slots into standard brochure display racks. |
Specs and pricing
Custom brochure specs and pricing
Once you have picked your standard size and fold, here is what a made-to-order brochure gives you at 4OVER4.COM, with live specs and price-per-unit straight from the configurator.
| Quantity | Price Per Unit | Total |
|---|---|---|
| 50 | $1.14 | $57.11 |
| 100 | 82.4¢ | $82.38 |
| 200 | 53.3¢ | $106.55 |
| 300 | 41.0¢ | $123.02 |
| 400 | 34.9¢ | $139.49 |
| 500 | 31.2¢ | $155.97 |
| 600 | 26.7¢ | $160.36 |
| 700 | 23.5¢ | $164.75 |
Print it
Order brochures in every standard size and fold
Wally explains brochure sizes
Pick US Letter or A4, choose a fold, and every panel lines up
Wally treats a brochure like a sheet with a plan. The flat size, US Letter or A4, and the fold together decide the finished dimensions, how it opens, and whether it fits the envelope. Choose those two first, add the bleed and safe zone, and every panel lines up. When the file is ready, 4OVER4 scores, folds, and trims it to your exact standard size.
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Common Questions
Common questions about standard brochure sizes
What is the standard brochure size?
In the United States and Canada the standard brochure size is 8.5 by 11 inch US Letter. Tri-folded it closes to roughly 3.67 by 8.5 inches, which fits a standard number 10 envelope and makes it the default for mailers, menus, and trade show handouts. It uses the same sheet as everyday office printing, so it is affordable and easy to design around.
What is the A4 brochure size?
A4 measures 210 by 297 mm, which is 8.27 by 11.69 inches. It is the international standard set by ISO 216 and is used almost everywhere outside North America. Tri-folded, an A4 sheet closes to about 99 by 210 mm, and bi-folded it gives a 148 by 210 mm half page. Design to A4 rather than US Letter when your brochure is heading to Europe, the UK, Australia, or most of Asia.
What are the standard tri-fold brochure dimensions?
A standard tri-fold prints on an 8.5 by 11 inch US Letter sheet and folds down to roughly 3.67 by 8.5 inches, giving six panels. The inner panel is cut about 1/16 to 1/8 inch narrower so the brochure closes flat instead of buckling. Legal 8.5 by 14 tri-folds are also common when you need more room for menus or detailed service lists.
What is the difference between US Letter and A4 brochures?
US Letter is 8.5 by 11 inches and is the North American standard, while A4 is 210 by 297 mm, or 8.27 by 11.69 inches, and is the international standard. A4 is slightly narrower and taller. Use US Letter for audiences in the US and Canada so it fits local envelopes, and use A4 when the brochure ships internationally so it fits local racks and folders.
What are the standard bi-fold brochure dimensions?
A bi-fold has one center fold that creates four panels and a wider, book-like page. On an 8.5 by 11 inch US Letter sheet it closes to 5.5 by 8.5 inches, and on an 11 by 17 inch tabloid sheet it opens to a full 8.5 by 11 page. Bi-folds suit image-led layouts, portfolios, and product features where a photograph needs room to fill the page.
How much bleed and margin do standard brochure layouts need?
Add 0.125 inch of bleed on every edge so background colors and images run all the way to the trim after cutting. Keep all text and logos at least 0.125 inch inside the fold and trim lines so nothing gets clipped or lost in a crease. Work at 300 DPI in CMYK. The blank brochure templates from 4OVER4.COM already include these bleed and safe-zone guides.
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