Resource Center

Envelope Guide

These are our most common envelopes. Learn about the five main categories, their standard sizes, and suggested insert sizes. Most are stocked in-house. If you need a size or type not listed, it is likely a Specialty Envelope. Please contact us for size and stock options for Specialty or Converted Envelopes.

Business Envelopes

Regular Business Envelopes, also referred to as Commercial Envelopes, are widely used for business and commercial use. One of the most popular business envelopes is the Standard #10 envelope; which is designed to hold a standard 8½x11″ trifold piece of paper. This makes it ideal for sending everything from letterhead to statements. The Standard #9 envelope is also commonly paired as a reply envelope with the #10.

Add 2-3 Business Days to your turnaround time for #11, #12, #14

NameSizeInsert Size
#6¼3½" x 6"3¼" x 5¾"
#6¾3⅝" x 6½"3⅜" x 6¼"
#8⅝3⅝" x 8⅝"3⅜" x 8⅜"
#73¾" x 6¾"3½" x 6½"
Monarch3⅞" x 7½"3⅝" x 7¼"
#7¾3⅞" x 7½"3⅝" x 7¼"
#93⅞" x 8⅞"3⅝" x 8⅝"
#104⅛" x 9½"3⅞" x 9¼"
#114½" x 10⅜"4¼" x 10⅛"
#124¾" x 11"4½" x 10¾"
#145" x 11½"4¾" x 11¼"

Announcement Envelopes

Announcement Envelopes come in two styles: Square Flap or deep pointed Baronial style flaps. These are also sometimes called “A-Series Envelopes” because they are designed to fit all announcement sizes A2-A10. Perfect for invitations, greeting cards, social or commercial announcements, and personalized communications for events.

NameSizeInsert Size
A13⅝" x 5⅛"3⅜" x 4⅞"
A24⅜" x 5¾"4⅛" x 5½"
A44¼" x 6¼"4" x 6"
A64¾" x 6½"4½" x 6¼"
A75¼" x 7¼"5" x 7"
A85½"; x 8⅛"5¼"; x 7⅞"
A95¾" x 8¾"5½" x 8½"
A106" x 9½"5¾" x 9¼"

NameEnvelope DimensionsSuggested Enclosure
4 Baronial5⅛" x 3⅝"4⅞" x 3⅜"
5 Baronial5 ½" x 4⅛"5 ¼" x 3⅞"
5 ½ Baronial5¾" x 4⅜"5½" x 4⅛"
6 Baronial6½" x 3¾"6¼" x 3½"
Lee7¼" x 5¼"5" x 7"

Square Envelopes

Square Envelopes come in a wide range of sizes and most come with a square flap on the back. These envelopes require additional postage because of the square shape.

Add 5-7 Business Days to your turnaround time for all sizes

NameEnvelope DimensionsSuggested Enclosure
5 x 55" x 5"3¾" x 3¾"
5½ x 5½5½" x 5½"5¼" x 5¼"
6 x 66" x 6"5¾" x 5¾"
6½ x 6½6½" x 6½"6¼" x 6¼"
7 x 77" x 7"6¾" x 6¾"
7½ x 7½7½" x 7½"7¼" x 7¼"
8 x 88" x 8"7¾" x 7¾"
8½ x 8½8½" x 8½"8¼" x 8¼"
9 x 99" x 9"8¾" x 8¾"
9½ x 9½9½" x 9½"9¼" x 9¼"

Booklet/Catalog Envelopes

Booklet and Catalog envelopes make it easy to enclose a brochure, catalog, booklet, thick stack of paper, or large amounts of printed materials. Booklet Envelopes open on the long edge, Catalog envelopes open on the short edge of the envelope. These come in a wide range of sizes.

NameEnvelope DimensionsSuggested Enclosure
6 x 96" x 9"5¾" x 8¾"
6 x 9½6" x 9½"5¾" x 11¼"
6½ x 9½6½" x 9½"6¼" x 9¼"
7 x 107" x 10"6¾" x 9¾"
7½ x 10½7½" x 10½"7¼" x 10¼"
8¾ x 11½8¾" x 11½"8½" x 11¼"
9 x 129" x 12"8¾" x 11¾"
9½ x 12⅝9½" x 12⅝"9¼" x 12⅜"
10 x 1310"x 13"9¾" x 12¾"
10 x 1510"x 15"9¾" x 14¾"

NameEnvelope DimensionsSuggested Enclosure
6 x 96" x 9"5¾" x 8¾"
6½ x 9½6½" x 9½"6¼" x 9¼"
7½ x 10½7½" x 10½"7¼" x 10¼"
9 x 129" x 12"8¾" x 11¾"
9½ x 12½9½" x 12½"9¼" x 12¼"
10 x 1310" x 13"9¾" x 12¾"
12 x 15½12" x 15½"11¾" x 15¼"

Remittance Envelopes

Remittance envelopes are designed with very large flaps so the envelope itself can be used as a form to collect important information. The form can be printed on the inside of the flap and the back of the envelope. When the envelope is sealed, the form is hidden.

NameEnvelope DimensionsSuggested Enclosure
#6¼3½" x 6"3¼" x 5¾"
#6½3½" x 6¼"3¼" x 6"
#6¾3⅝" x 6½"3⅜" x 6¼"
#93⅞" x 8⅞"3⅝" x 8⅝"

Envelope Design

Here are a few design basics to keep in mind when designing your envelopes.

3/8" Top Margin for Envelopes
Full Color, Process Color and Spot Color envelopes require a 3/8“ clear margin at the top of the envelope for the press to grip the envelope.

Envelope designs requiring full bleed on all sides have to be printed on larger flat sheets that are then converted into envelopes afterwards, so please specify this when placing your order as both price and turn-time are greater.

Use our envelope templates to ensure your file is sized and setup correctly.

If you don't see the size you need, let us know so we can create a template for you!

Submit your resume online

    Facility Tour

    Slate Group Headquarters

    WordPress Appliance - Powered by TurnKey Linux