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Leave the heavy boxes and clunky cartons behind by opting for Expansion Envelopes when mailing items too thick to fit in a standard envelope, like books, financial reports, and gifts! Expansion Envelopes have an accordion folded side panel designed to expand anywhere from 1 inch to 4 inches to accommodate your materials, yet they stack flat so they don't take up much storage space in your office. Choose from durable white or brown kraft paper or lightweight and tear-resistant Tyvek® material. All expansion envelopes have a Zip Stick® self-adhesive flap on the short side to help you close the envelope securely.
If you’re mailing items that are too bulky for standard envelopes, then our expansion envelopes are what you need. Don’t settle for boxes that may not specifically fit the dimensions of your items. Instead, consider our expanded envelope options, designed with an accordion folded side panel that allows it to expand anywhere from one to four inches. Each features a Zip Stick self-adhesive strip on the back flap to keep your contents in place. Store your business documents and other materials in these envelopes that will stay flat for maximum storage capacity in your space. No matter the measurements of your items, our inventory of expansion folders has a multitude of sizes to accommodate almost any mailing need. From large books and reports to other non-fragile items, these envelopes can expand to comfortably fit your contents inside. Mail books or catalogs to customers or keep them at home to organize your office or school materials. Even when full, the expansion envelopes will stay flat to take up the least amount of space. We offer the following sizes: 5x11x2, 9x12x1, 9x12x2, 9x12x3, 10x12x4, 10x13x 1 ½, 10x13x1, 10x13x2, 10x15x2, and 12x15x3. Depending on the size chosen, you may choose from Brown Kraft, White Kraft, Tyvek, or Herculink. We also offer booklet expansion envelopes, which are ideal for storing or sending literature. In White Kraft, Brown Kraft, and Herculink, these envelopes have a very professional and sophisticated appeal. If you’re seeking new envelopes for your publishing house or magazine, these are excellent options. Choose from ideal sizes like 9x12x1, 10x12x2,10x13x2, 10x13x1, and 10x15x2 to fit your books, catalogs, and other printed materials. If your office needs new retention jackets, we offer these as well! Our 9x9x1 brown kraft jackets are designed to attach to fastener file folders, eliminating the need to hole punch your documents. Six pre-punched holes allow for easy storage. Store and organize important materials in the office with these useful options. With our expanded envelope selections, you’ll easily find the right envelopes you need to match the dimensions of your flat, bulky items. If you have any other questions or concerns about our expansion envelopes, please feel free to contact us for further assistance.
* (1) Merchandise total must equal $99 or more before applicable taxes and ship to one address within the 48 contiguous United States. (2) MUST SELECT "STANDARD SHIPPING" as your shipping method BEFORE entering the code. (3) Enter the coupon code FREE99. Offer not valid for Alaska, Hawaii, United States Territories or International destinations. Offer is not redeemable on previous orders and cannot be combined with promotional coupon codes. Offer CAN be used in conjunction with Loyalty, Trade Pro and Non-Profit Discount Program. Offer not valid on phone orders. Terms of offer are subject to change at any time.
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Offers are not redeemable on previous orders. Offers CAN be used in conjunction with FREE99 promotion and CANNOT be used for Loyalty, Trade Pro and Non-Profit Discount Programs or with other offers. Offer not valid on phone orders. Terms of offer are subject to change at any time.
We are currently experiencing shipping delays due to COVID-19 and the safety precautions that are taking place at our distribution center. These delays ensure the safety of our workers and you, the recipients, and prioritize the needs of essential workers. Thank you for your continued patience.