Choosing the Right Envelope Size for Your Business
Selecting the correct envelope size is more than just fitting paper — it’s about protecting your materials, ensuring professional presentation, and avoiding extra postage costs.
At Minuteman Press Boca Raton, we help local businesses choose and print envelopes that fit their inserts, meet USPS guidelines, and showcase their brand in the best light. Whether you’re mailing invoices, proposals, catalogs, or invitations, the right envelope keeps your message looking sharp and polished.
Most Common Business Envelope Sizes
Here’s a quick reference to the most-used envelope sizes for small and medium businesses, based on standard industry measurements:
#10 Envelope – 9.5″ × 4.125″ (Closed)
The most popular business envelope, perfect for tri-folded 8.5″ × 11″ letters, invoices, and statements.
Best for: General business correspondence, invoices, and contracts.
Tip: Add your logo and return address for instant brand recognition.
#9 Envelope – 8.875″ × 3.875″ (Closed)
Designed to fit inside a #10 envelope, making it ideal for reply or return mail.
Best for: Enclosed return envelopes, payment forms, and donation mailers.
A7 Envelope – 7.25″ × 5.25″ (Closed)
Commonly used for invitations, greeting cards, and thank-you notes.
Best for: Event invites, branded stationery, and client appreciation cards.
A6 Envelope – 6.5″ × 4.75″ (Closed)
Slightly smaller than the A7, perfect for compact mailings and RSVP cards.
Best for: Announcements, small postcards, or reply sets.
6 × 9 Envelope
A mid-size catalog envelope that allows your materials to stay flat.
Best for: Multi-page letters, folded brochures, and marketing packets.
6.5 × 9.5 Envelope
A slightly larger catalog envelope offering extra room without excess bulk.
Best for: Booklets, flyers, and promotional inserts.
9 × 12 Envelope
Ideal for documents you want to keep flat and professional.
Best for: Proposals, presentations, and catalogs.
10 × 13 Envelope
Used for larger catalogs or multiple documents that shouldn’t be folded.
Best for: Portfolios, bound reports, or thick inserts.
Why Envelope Size and Format Matter
Choosing the correct size helps you:
Prevent creasing or damage during mailing
Maintain a polished, professional appearance
Stay within USPS “letter” and “flat” postage categories
Present consistent branding across all your communications
Even small details — like flap size, layout, or window placement — affect printing and mailing quality. Our Boca Raton print specialists ensure every envelope is designed, printed, and formatted correctly for your intended use.
Custom Envelope Printing Options
Every envelope we print can be fully customized to match your brand:
Single or full-color printing
Window or non-window options
Security tints for privacy
Custom flap shapes and finishes
Personalized logos, taglines, and brand colors (Green #006B5C, Orange #F15A22)
We print on all envelope styles — from standard business #10s to A-series and catalog envelopes — using offset, digital, and specialty finishing.
Local Printing. Professional Results.
At Minuteman Press Boca Raton, we combine high-quality printing with personal service. Our team helps you select the right stock, design, and size for your specific project.
Whether you need 250 custom envelopes or a bulk direct-mail run, you’ll get fast turnaround, local expertise, and reliable quality every time.
561-392-8626 | Request a Free Estimate
