Brochure Size and Flyer Size Guide

The standard flyer size in the US is 8.5 x 11 inches (letter size). The standard brochure size is also 8.5 x 11 inches flat, which folds into a trifold brochure with three panels of approximately 3.67 x 8.5 inches each. Both formats have multiple size variants, and brochures have additional panel dimension requirements that change based on fold type. Every format requires a 0.125-inch bleed and a 0.125-inch safe zone inside the trim line for production-ready artwork.

TLDR: Standard flyer is 8.5 x 11 in. Half-sheet flyer is 5.5 x 8.5 in. Standard trifold brochure flat size is 8.5 x 11 in, with panels at 3.67 in wide. Legal trifold flat size is 8.5 x 14 in, with panels at 4.67 in wide. All brochure panel width calculations must account for the fold tolerance of 0.0625–0.125 inches per fold.

The most common production error in brochure printing is building all panels at identical widths. Folded panels must be sized differently: the innermost panel of a trifold must be 0.0625–0.125 inches narrower than the outer panels or it will not fold flat and the edges will bow. This error is invisible in flat artwork and only appears when the printed sheet is folded. Correcting it after printing requires reprinting the full run.

Key Takeaways

• Trifold panel width is not equal: On a standard 8.5 x 11 in trifold, the inner panel must be 0.0625 inches narrower than the two outer panels to fold flat without bowing.
• Bleed applies to the flat sheet, not the folded panel: Set 0.125 inches of bleed on all four sides of the flat unfolded sheet. Do not add separate bleed per panel.
• Resolution for flyers and brochures: Set artwork at 300 DPI at the final flat printed size. Photographic elements must be 300 DPI at placement size, not at the original image size.
• Legal size brochures cost more: An 8.5 x 14 in flat sheet does not fit on a standard letter press sheet, which increases per-unit cost by 15–30% versus letter-size brochures at equivalent quantities.
• Flyer stock weight: Flyers print on 60–100 lb text stock. Brochures print on 80–100 lb text or 80–100 lb cover stock. Cover stock is heavier and adds stiffness appropriate for self-mailers and counter display pieces.

Standard Flyer Sizes

Flyers are single-sheet, unfolded print pieces. Size determines distribution context: large flyers carry more content and work for wall posting and counter display; small flyers are suited for handout distribution where recipients pocket the piece rather than carry it.

Flyer stock and finish by use case

Flyers distributed by hand in high volumes print on 60 lb text stock to minimize per-unit cost. Flyers used for counter display, rack placement, or mailing print on 80–100 lb text for stiffness and durability. Flyers that double as coupons or loyalty pieces use 80–100 lb cover stock, which has a heavier, stiffer feel that signals the piece is worth keeping.

Gloss laminate is common on full-color promotional flyers because it intensifies color saturation and protects the surface from handling marks. Uncoated stock is used when the flyer needs to accept handwriting, such as event RSVPs and sign-up sheets. Matte finish reads as more premium than gloss in creative and service industry contexts.

Standard Brochure Sizes

Brochure size refers to the flat, unfolded sheet dimension. The folded dimensions depend on the fold type applied to that flat sheet. A single flat size can produce different folded formats depending on how many folds are applied and where the score lines are placed.

Brochure Fold Types and Panel Dimensions

Every fold type produces different panel counts, panel widths, and content layout requirements. The fold type must be decided before artwork is built because panel widths are not equal and the design grid must reflect the correct panel boundaries.

Trifold (letter fold) dimensions

A trifold divides the flat sheet into three panels with two parallel folds. On a standard 8.5 x 11 in flat sheet, three equal panels would each measure 3.667 inches wide. In production, equal panel widths cause the inner panel (the one that folds inside) to bow because it needs to travel a shorter arc than the outer panels.

The correct specification for a trifold on an 8.5 x 11 in sheet is an inner panel of 3.625 inches and two outer panels of 3.6875 inches each. The inner panel is 0.0625 inches narrower. This difference is imperceptible in the design but eliminates panel bowing after folding. Confirm the exact panel widths with the printer before building the artwork grid, because fold tolerance varies by stock weight and press model.

Bifold (half fold) dimensions

A bifold applies a single fold down the center of the flat sheet, producing two panels of equal width. Bifold brochures do not have the panel-width inequality problem of trifolds because neither panel folds inside the other. Both panels are identical in width.

Z-fold dimensions

A z-fold applies two folds in opposite directions, creating a zigzag pattern when viewed from the side. The sheet accordion-folds into three panels of equal width. Unlike a trifold, the z-fold does not have an inner panel that nests inside the others: each fold reverses direction, so all panels can be the same width without bowing.

Gate fold dimensions

A gate fold opens from the center outward like two doors, with two outer panels that fold inward to meet at the center. The two outer panels are each half the width of the center panel. Gate folds are used for high-impact reveals: opening the gates exposes the full center spread as a single uninterrupted design area.

On a standard 8.5 x 11 in sheet, a gate fold produces two outer panels at 2.75 inches wide and one center panel at 5.5 inches wide. The center spread (inside of both gates open) measures the full sheet width minus bleed. Gate folds require a parallel fold setup and are not available on all presses: confirm availability with the printer before designing this format.

Accordion fold dimensions

An accordion fold applies three or more alternating folds to produce four or more equal panels. The panel count equals the number of folds plus one. A four-panel accordion (three folds) on an 8.5 x 11 in sheet produces four panels at 2.75 inches wide. A six-panel accordion on the same sheet produces six panels at 1.83 inches wide.

Content width at 1.83 inches is extremely limiting. Six-panel accordions on letter size are rarely used for content-heavy pieces. They are more common as timelines, step sequences, and map formats where the narrow panel width is a design feature rather than a constraint.

International Flyer and Brochure Sizes

International markets use ISO 216 paper sizes. A4 is the near-equivalent of US letter size and is the dominant print format in Europe, Asia, and most of the world outside North America. A3 is the near-equivalent of US tabloid. Artwork built for US letter size cannot be directly substituted for A4 without layout adjustment: A4 is slightly narrower and taller than US letter, and content near the edges of a letter layout will fall outside the A4 trim on at least two sides.

DL format for brochures

DL (Dimension Lengthwise) is a European brochure format sized at 99 x 210 mm, equivalent to one-third of an A4 sheet. It is designed to fit a standard DL envelope without folding, making it the default format for mailed brochures in European markets. A DL brochure on an A4 flat sheet produces three equal panels at 99 mm wide each, with no inner-panel narrowing required because the DL format is designed as a trifold of the A4 parent sheet.

Print File Specifications for Brochures and Flyers

File setup errors are the most common cause of press-hold rejections on brochure and flyer orders. The three errors that appear most frequently are missing bleed, incorrect resolution on photographic elements, and artwork built in RGB instead of CMYK.

Bleed and safe zone setup

Set bleed at 0.125 inches on all four sides of the flat unfolded sheet. Do not add bleed per panel. The entire flat sheet gets one bleed boundary. Safe zone for all critical content, including headlines, body text, logos, and contact information, must sit at least 0.125 inches inside the trim line on the flat sheet. For brochures, also keep critical content at least 0.25 inches away from each score line. Content that crosses a score line will be disrupted by the fold crease in the printed piece.

Score line safe zone for brochures

A score line physically creases the paper fiber. Content printed directly over a score line cracks the ink layer on coated stocks, producing a visible white or gray line through any solid color or image that crosses the fold. Keep all solid color fields and photographic images at least 0.0625 inches away from the score line on each side. Keep all text and logos at least 0.25 inches from the score line on each side to prevent content from appearing to split at the fold.

Resolution for photographic elements

Place all raster images at 300 DPI at the final print size. A photograph placed at 100% in a design file at 72 DPI will print with visible pixel structure and blurred edges on a commercial press. Stock photographs downloaded from web-resolution sources (72 DPI) and scaled to fit a brochure panel are the most common source of this error. Verify the DPI of every placed image at its placement size, not at the source file’s native resolution.

Finish Options for Brochures and Flyers

Finish affects durability, perceived quality, and cost. The correct finish depends on the piece’s function, handling frequency, and distribution method.

Coated stock and laminate for durability

Brochures handled repeatedly at trade shows, counters, and sales presentations need a surface that resists fingerprints, scuffs, and moisture. Gloss laminate on 100 lb text stock is the standard for high-traffic brochures. Matte laminate reads as more premium in professional service, financial, and healthcare contexts. Both finishes add $0.05–$0.15 per unit at standard production quantities of 500–2,500 pieces.

UV spot coating on brochure covers applies a glossy raised layer to selected elements such as logos, headlines, or product images while leaving the surrounding area matte. The contrast between the spot UV and the matte background is one of the most effective tactile signals in print marketing. UV spot adds $0.08–$0.20 per unit at standard quantities and is most cost-effective on quantities above 500 pieces.

Self-mailer brochure specifications

A self-mailer brochure folds and mails without an envelope. USPS regulations for self-mailers require a minimum flat size of 3.5 x 5 inches, a minimum paper weight of 70 lb text, and a sealed edge (not an open edge) on the leading side. The address panel must be on the outside back panel and must have a clear area of at least 4 x 2.5 inches for the address block and postage indicia. Self-mailers that do not meet USPS specifications are returned to the sender or charged first-class postage regardless of the mailing class paid.

Brochure and Flyer Production at MFG Merch

MFG Merch produces promotional print materials including brochures, flyers, and event collateral for businesses in Jacksonville and nationally. Commercial print production for brochures and flyers follows the file specifications in this guide. Submit artwork at the correct flat sheet canvas size with bleed included, in CMYK at 300 DPI, and with score line safe zones observed, and jobs move directly to press without an artwork correction round.

View the full range of promotional print and marketing materials available through MFG Merch for event, retail, trade show, and direct mail programs.

Get Updated Brochure and Flyer Specs

Paper stock availability, fold tolerance specifications, and self-mailer postal requirements can change as suppliers update their products and mailing regulations evolve. The sizes and specifications in this guide serve as reliable production references. Before finalizing artwork for a mailed piece, it’s recommended to confirm current stock options and any applicable postal requirements for your project.

Contact the MFG Merch team for the latest specifications for your brochure or flyer format, fold type, stock weight, and finish. Simply provide your flat size, fold style, quantity, and whether the piece will be mailed, and our team will confirm production specifications and provide a custom quote.

FAQ

What is the standard brochure size?

The standard brochure size in the US is 8.5 x 11 inches flat, which folds into a trifold with panels approximately 3.67 inches wide and 8.5 inches tall. The 8.5 x 11 flat sheet is the most cost-effective brochure format because it fits standard press sheets without waste. Larger formats like 8.5 x 14 and 11 x 17 cost 15–30% more per unit at equivalent quantities.

What is the standard flyer size?

The standard flyer size in the US is 8.5 x 11 inches, which is the same as US letter paper. The half-sheet flyer at 5.5 x 8.5 inches is the most common format for handout distribution. Quarter-sheet flyers at 4.25 x 5.5 inches are used for high-volume mass distribution where unit cost must be minimized. For wall posting and window display, the 11 x 17 inch large format flyer is the standard.

Why must trifold brochure panels be different widths?

In a trifold brochure, the inner panel folds inside the two outer panels. Because paper has physical thickness, the inner panel must travel a shorter path around the fold than the outer panels. If all three panels are the same width, the inner panel is too wide to sit flat inside the fold and the outer edges bow outward. The inner panel must be 0.0625–0.125 inches narrower than the outer panels to compensate for this thickness difference. The exact tolerance depends on paper stock weight: heavier stocks require a larger panel width difference.

What is the difference between a flyer and a brochure?

A flyer is a single-sheet, unfolded print piece. A brochure is a multi-panel piece produced by folding a single sheet. Both can be printed on the same paper stocks and at the same sizes. The distinction is structural: if the piece has a fold, it is a brochure. Flyers are faster to produce and lower in cost per unit at equivalent quantities because they require no folding after printing.

What file format should I submit for brochure and flyer printing?

Submit artwork as a PDF with bleed marks and crop marks visible, all fonts converted to outlines, and all linked images embedded at 300 DPI at placement size. The PDF must be set to CMYK color mode, not RGB. For brochures, submit the artwork as a single flat sheet with all panels in place and score lines marked as guides or as a note in the file. Do not submit panels as separate files unless the printer specifically requests that format.