This envelope sizes chart covers Angels Print’s listed formats: a No. 10 envelope measures 9.5 × 4.125 inches, A2 measures 5.75 × 4.375 inches, A6 measures 6.5 × 4.75 inches, and A7 measures 7.25 × 5.25 inches. Square options run from 5.25 × 5.25 to 6.5 × 6.5 inches, while listed booklet and catalog formats include 9 × 6, 12 × 9 and 13 × 10 inches.
Which dimensions belong in your envelope sizes chart?
Use the dimensions below to narrow your choice before preparing artwork. All measurements are in inches. These are listed envelope sizes, not guaranteed usable interior measurements or instructions for setting up a production file.
No. 10 (#10): 9.5 × 4.125. This is also 9½ × 4⅛ inches. The Luxury Custom Envelopes size menu supplies those dimensions; the premade and full bleed products also list #10 Standard.
A2: 5.75 × 4.375. Listed under Envelopes Premade. This is the smallest of the three numbered A formats shown here.
A6: 6.5 × 4.75. Listed under Envelopes Premade. Compare both measurements with your finished insert, including any folds.
A7: 7.25 × 5.25. Listed across premade, full bleed and luxury custom envelopes. The luxury menu writes the name as A-7.
Square: 5.25 × 5.25, 6 × 6 or 6.5 × 6.5. These are the three listed Square Envelopes sizes. Their equal sides distinguish them from the rectangular A formats.
Booklet and catalog: 9 × 6, 12 × 9 or 13 × 10. All three sizes appear in the premade menu for both styles. Full Bleed Envelopes lists 12 × 9 in both styles; Luxury Custom Envelopes lists a 12 × 9 booklet that opens on the 12-inch side.
The premade menu also includes #9 Standard and 6 3/4 Remittance, but it doesn't supply their numeric dimensions. Confirm those measurements before laying out an insert. A style name alone isn't enough to establish fit.
What is the No. 10 envelope size?
A No. 10 envelope is 9.5 inches wide by 4.125 inches high. “No. 10,” “number 10” and “#10” refer to the same size designation. The number is a format name, not a measurement of 10 inches.
Check the folded piece first. Measure its finished width and height, then allow room for insertion and the thickness of the contents. An insert matching the envelope’s listed dimensions exactly is a poor starting point because seams and construction reduce usable space.
For a window envelope, size is only half the decision. Envelopes Premade lists a Standard Window option for #10 and #9. Confirm the window position and opening dimensions before positioning the address on your document; those measurements aren't supplied in the size menu.
Should you choose A7, square or a larger envelope?
Choose around the contents. A7 and the 5.25-inch square share one dimension, but A7 provides a longer rectangular format. Switching between them means checking the insert again, even if the artwork looks similar on screen.
A thicker enclosure needs more clearance than a single thin sheet. If you're enclosing several pieces, check the complete stack rather than measuring only the largest sheet. Ask about fit before committing to the envelope run.
Opening direction matters too. The luxury 12 × 9 booklet explicitly opens on its 12-inch side. For other booklet or catalog selections, confirm the opening arrangement if it affects how you will load the contents. Identical listed dimensions don't establish identical handling.
Which paper and finish options go with each product?
Envelopes Premade starts from $1000.30. Its paper options include 24# Uncoated Text, with Natural 60# Vellum also listed for A7. Front Only and Front and Back printing are available selections; black-and-white printing is tied to Front Only, while full color is listed for either selection.
Square Envelopes starts from $1000.36. The product lists 70# Uncoated Text and a Square Flap. You can select Front or Both Sides printing, with black-and-white and full-color options for each.
Full Bleed Envelopes starts from $1000.06 and lists 70# Uncoated Text with Full Color, Outside Only printing. Its style menu includes Full Bleed (Print/Convert). Confirm the selected configuration’s artwork requirements before building a design that reaches the edges.
Luxury Custom Envelopes starts from $1003.16. Listed stocks include 14PT coated options, 130# Uncoated Cover, black cover stocks and 130# Brown Kraft Cover. Outside and Outside & Inside printing appear in the menu.
Luxury finishing choices include gloss, matte lamination and soft touch lamination on specified stocks. Digital foil, raised foil and raised spot UV are also listed. Availability depends on the selections: choose the stock first, then let the configurator confirm the compatible finish.
How do quantity and configuration affect the comparison?
Compare the same quantity where possible. Premade quantity selections extend from 50 to 50,000, square from 50 to 5,000, and luxury from 50 to 10,000, with gaps between listed amounts. Full bleed lists 250 for selected smaller formats, followed by quantities from 500 to 50,000.
The starting prices aren't quotes for matching specifications. Their displayed default runs differ: 2,071 premade envelopes, 1,539 square envelopes, 3,374 full bleed envelopes and 258 luxury envelopes. Don't treat those defaults as the minimum quantities.
Size, paper and printed sides are configuration decisions to settle before comparing checkout prices. Finishes add another variable on luxury envelopes. Prices shown at checkout are final for the selected configuration; a product’s starting price doesn't establish the cost of every size.
What should you check before uploading envelope artwork?
Start with the selected product’s requirements beside the upload field. Follow its stated file types, size, bleed and safe area. A print-ready PDF can be useful, but don't add a guessed bleed allowance or use the envelope dimensions as a complete file specification.
Check image resolution at final print size. For printing on multiple surfaces, confirm how the artwork should identify each surface before uploading. Files are attached as supplied; an upload or preview doesn't confirm that the artwork is ready for production.
A digital proof by email is available on request. Manufacturing starts immediately after payment, so arrange any needed proof review before paying. Don't assume the order automatically waits for approval.
For broader print and mailing decisions beyond this size reference, read Marketing Envelopes That Get Opened: Sizes, Postage, and Print Options. Keep the envelope measurement and the finished insert measurement together when discussing your project.
Order your selected envelope online, or use our Envelope Printing & Direct Mail service to discuss the project. Call Angels Print at (818) 806-9006 to confirm missing size or artwork details, or visit 8511 Lankershim Blvd, Sun Valley, CA 91352. Pickup is always free.
Frequently asked questions
What size is a No. 10 envelope in inches?
A No. 10 envelope measures 9.5 × 4.125 inches, also written as 9½ × 4⅛ inches. No. 10 and #10 name the same format. Check your folded insert and its thickness before ordering.
What is the difference between A6 and A7 envelopes?
A6 measures 6.5 × 4.75 inches, while A7 measures 7.25 × 5.25 inches. Angels Print lists both in Envelopes Premade. A7 also appears in the full bleed and luxury custom menus; confirm the available configuration before preparing artwork.
What square envelope sizes does Angels Print offer?
Square Envelopes lists 5.25 × 5.25, 6 × 6 and 6.5 × 6.5 inches. The product specifies 70# Uncoated Text and a square flap, with front or both sides printing.
Should an insert be the same size as its envelope?
No. Allow clearance for insertion and the thickness of the contents. Listed envelope dimensions don't guarantee usable interior space. Measure the finished insert or complete stack, then confirm fit for the selected envelope before placing the order.