9x12 Envelopes | Catalog & Booklet - Self Seal & Clasp

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Order 9x12 Envelopes and get FREE shipping! Perfect for everyday mailing or sorting and storing documents. Available in many colors and styles. The 9x12 size is the most common large envelope size. Used for a variety of purposes, both mailing and interoffice use. The 9x12 size is ideal for standard size documents (8 1/2 x 11 inches). Use these envelopes to mail or store documents or ship items/products. Use to send booklets, catalogs, brochures, marketing materials, letters, and more. We offer a variety of closure options including self seals, clasps, and standard gum seals. Choose from a variety of bright and pastel colors, white or manila. We also offer 9x12 envelopes with security tint and window options. These options are ideal when you need to send sensitive information, or display a pre-printed mailing address.

Mailing your 9x12 envelopes? Personalize by adding custom artwork or designs, logos, return and mailing addresses, and more. We offer a variety of 9x12 envelopes. Choose from 9x12 Catalog envelopes -- with the flap (opening) on the 9 inch side (top) of the envelope, or 9x12 Booklet envelopes -- with the flap (opening) on the 12 inch side. 9x12 Catalog envelopes are most common for inserting several sheets of paper, or smaller items. 9x12 Booklet envelopes are most common for mailing brochures or marketing materials. Standard gum flap and self seal are the most popular options for mailing 9x12 envelopes, while the clasp option is most convenient for interoffice use. Add a form to the front or back of your envelope, and use for collecting or storing documents and information.

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9x12 Clasp Envelopes

9x12 Manila Envelopes

9x12 Catalog Envelopes

9x12 Window Envelopes

9x12 Booklet Envelopes

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Large Envelopes

Looking for more Large Envelopes? We offer a variety of sizes to choose from, including 6x9, 6 1/2 x 9 1/2, 6 1/2 x 9, and 10x13 envelopes. We have a large selection of styles, sizes, and colors. Shop Large Envelopes.

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Custom 9x12 Envelopes

Do you need to add your logo and return address? Create Custom Envelopes with our envelope printing services. Choose the Printed option to create your envelopes. Shop Custom 9x12 Envelopes.

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Not finding what you need? Have a question about a printed order? We would love to see if we can make your order - and life - a little bit easier.

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9x12 Envelopes Size Guidelines

Not sure what size you need? Check out our large envelopes size guide to find the perfect size envelope for your mailing needs.

  • 6x9 - Fits 5 7/8 x 8 7/8 insert, or an 8 1/2 x 11 piece of paper folded in half.
  • 6 1/2 x 9 1/2 - Fits up to 6 1/4 x 9 1/4. Provides extra room for bulkier 6x9 items.
  • 6x10 - Protect small items, jewelry, or parts during the shipping process.
  • 8 3/4 x 11 1/4 - Ideal for mailing standard size (8 1/2 x 11) documents.
  • 9 x 11 1/2 - Perfect for mailing larger stacks of standard (8 1/2 x 11) documents.
  • 9x12 - Fits 8 7/8 x 11 7/8 insert, or several standard 8 1/2 x 11 sheets of paper.
  • 9 1/2 x 14 1/2 - Protect books, electronics, and other fragile items in transit.
  • 10x13 - Fits a 9 3/4 x 12 3/4 insert, a standard presentation folder, or larger catalogs / booklets.

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