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Brochure size guide: tri-fold dimensions, bleed, and panels
Short answer
A common US tri-fold brochure starts as an 8.5 x 11 inch sheet set up in landscape orientation, or 11 x 8.5 inches flat before folding. At 300 DPI, that flat brochure is 3300 x 2550 px after trim. With 0.125 inch bleed on every edge, the full-bleed file is 11.25 x 8.75 inches, or 3375 x 2625 px at 300 DPI. Fold-panel sizes and inner-panel adjustments can vary by printer, so printer specifications still control final panel widths, bleed, safe area, marks, color workflow, and delivery format.
Use this page when choosing a brochure document size before setting up panels, bleed, fold-safe margins, vector text, color settings, crop marks, and a checked print-ready PDF export.
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What this page covers
- 11 x 8.5 inch flat Trim Proof starter brochure profile
- Common 8.5 x 11 letter tri-fold and 8.5 x 14 legal tri-fold references
- 3300 x 2550 px trimmed letter tri-fold size at 300 DPI
- 11.25 x 8.75 inch full-bleed file with 0.125 inch bleed
- 3375 x 2625 px full-bleed size at 300 DPI
- 0.25 inch safe margin plus fold-panel awareness for important text
- Printer-requested fold panel widths, crop marks, PDF/X level, color workflow, and delivery format
How to use this guidance
- 1Choose the final flat brochure size before designing
- 2Confirm whether the printer expects letter tri-fold, legal tri-fold, A4 tri-fold, or another format
- 3Use the 11 x 8.5 starter profile when a checked Trim Proof tri-fold proof is enough for the job
- 4Add 0.125 inch bleed on all sides if artwork reaches the edge
- 5Keep important panel headlines, logos, QR labels, and contact details inside the safe and fold-aware areas
- 6Run preflight and compare the proof against the printer's file requirements
Common brochure dimensions
A common US tri-fold brochure uses a letter-size sheet: 8.5 x 11 inches, set up as 11 x 8.5 inches in landscape orientation before folding. Other brochure formats include 8.5 x 14 inch legal tri-folds, 11 x 17 inch larger brochures, and A4 or A3 international formats. Match the size to the printer and fold requirement before designing.
Tri-fold brochure pixels at 300 DPI
For raster artwork, multiply inches by 300. An 11 x 8.5 inch flat tri-fold brochure is 3300 x 2550 px after trim. With 0.125 inch bleed added to every side, the full-bleed document becomes 11.25 x 8.75 inches, or 3375 x 2625 px.
Brochure bleed, panels, and safe area
Bleed is extra artwork outside the trim edge so small cutting shifts do not leave white slivers. Trim Proof's current brochure profile uses 0.125 inch bleed and a 0.25 inch safe margin around an 11 x 8.5 inch trim. Important panel headlines, logos, QR labels, addresses, and contact details should stay inside safe and fold-aware areas because folded panel widths can vary by printer.
Where Trim Proof fits
Trim Proof creates a fresh brochure proof from a structured brief, keeps final brochure copy in the deterministic PDF layer, applies explicit trim and bleed geometry, shows panel guides, and checks the PDF/X export before production download. It does not replace the printer's fold template or guarantee acceptance by every printer.
Related print-ready tools
Brochure Maker With AI Print-Ready PDF/XMake tri-fold brochures from a brief with 8.5 x 11 setup, panel guides, bleed, vector text, preflight, watermarked demo art, and paid clean PDF/X export.Free Brochure Maker DemoTry a free brochure maker demo with watermarked art, tri-fold panel guides, bleed, vector text, preflight, and paid clean PDF/X export.Tri-Fold Brochure Template for Print-Ready PDFsCreate a tri-fold brochure template proof with 8.5 x 11 setup, panels, bleed, safe margins, vector text, PDF/X, preflight, and paid clean downloads.
Common questions
What size is a tri-fold brochure?
A common US tri-fold brochure starts as an 8.5 x 11 inch sheet, set up as 11 x 8.5 inches in landscape orientation before folding. Printers can also offer legal, tabloid, A4, and other brochure sizes.
What is a good size for a brochure?
Letter-size tri-fold brochures are common for general marketing. Larger brochures can give more space for menus, product lines, or detailed service information, but the printer's available sizes and fold templates should decide the final setup.
Is a brochure A4 size?
Many international brochure workflows use A4, while US brochure workflows often use letter size. Trim Proof's current starter brochure profile is 11 x 8.5 inches flat for a US letter tri-fold proof.
What size is a brochure with bleed?
With 0.125 inch bleed on every edge, add 0.25 inch to the total width and height. An 11 x 8.5 inch flat tri-fold brochure becomes an 11.25 x 8.75 inch full-bleed file.
Can Trim Proof guarantee a printer will accept my brochure?
No. Trim Proof can create and check a brochure proof, but each printer can set its own size, panel, fold, bleed, crop-mark, color, PDF/X, paper, finishing, and delivery requirements.