Custom 6″ x 9″ Envelopes – Booklet & Catalog Envelopes

Custom 6×9 Envelope Printing for Booklets, Brochures & Branded Mail

Sometimes a #10 is too small and a 9×12 is more envelope than you need. That’s where the 6×9 envelope comes in. At 6″ x 9″, it holds a 5.5″ x 8.5″ booklet, brochure, card or half-folded letter perfectly flat, so your piece arrives looking the way you designed it. We print custom 6×9 envelopes with your logo, return address and brand colors, and you can add a message to the flap too. It’s a small detail that makes a big difference when someone picks your envelope out of the mailbox.

Short Runs Welcome: Order as Few as 25

Not every mailing needs 1,000 envelopes. Order custom 6×9 envelopes in quantities of 25, 50, 75, 100, 250 or 500, and pay only for what you’ll actually use. Because we print digitally, small orders still get full-color quality, your logo, flap printing and turnaround as fast as 1–2 business days. Short runs are a smart fit when you’re:

• A small business or startup that wants branded mail without a big upfront order
• Mailing for a single event, like a conference, fundraiser, open house or grand opening
• Testing a campaign before rolling it out to your full list
• Running seasonal or limited promotions that need a fresh design each time
• Short on storage and tired of boxes of outdated envelopes in the supply closet

Front and Flap Printing: Make the Back Work as Hard as the Front

Most people see the back of an envelope right before they open it, so why leave it blank? With flap printing, you can put that space to work:

• Your logo or brand mark on the flap for a polished, finished look
• A tagline or teaser (“Your 2027 catalog is inside!”) that builds anticipation
• Your website, phone number or social handles, so people can reach you even before they open it
• A QR code that links to a landing page, offer or event registration

Print the front only, the flap only, or both. Choose full color for photos and rich brand colors, or 1 color for a clean, budget-friendly look.

Choose Your Opening: 6″ Side or 9″ Side

• 6″ side opening (catalog / open-end style): The flap is on the short end. Booklets and thicker pieces slide straight in, which makes it a favorite for catalogs, programs and product inserts.
• 9″ side opening (booklet style): The flap runs along the long edge. Documents go in sideways, and the large, uninterrupted front panel is ideal for a bold logo and address layout. It’s the classic choice for brochures, reports and invitations to business events.

6×9 Envelope Specifications

Designing for Pre-Made Envelopes

Because we print digitally on envelopes that are already folded and glued, there are a few simple rules that keep your design looking sharp:

• Keep a margin of about 1/4″ from all edges. Pre-made envelopes don’t print edge to edge, so leave a little breathing room around your artwork.
• Avoid placing fine text or logos over seams. The overlapping paper on the back can make ink look uneven.
• Keep the address area clear and light. USPS needs good contrast to read the address and barcode.

Our free 6×9 envelope templates mark the safe areas, seams and flap for both opening styles, and you can upload a print-ready PDF, AI, InDesign, Photoshop, JPG/JPEG or PNG file. Short on time or design help? Add envelope design services in the calculator, and our designers will put together a layout that matches your brand. You approve the proof, and we print and ship.

Shop More Envelope Sizes

Need to mail full 8.5″ x 11″ pages flat? Step up to 9×12 envelopes. For letters and invoices, see #10 envelopes and security window envelopes. For cards and invitations, browse A2, A6 and A7 envelopes.