Business Envelopes

Checkomatic’s large selection of pre-printed envelopes varies from custom #10 envelopes and #9 envelopes to 6x9 envelopes 9x12 and 10x13 envelopes. We also offer #7 coin envelopes for securely storing and transporting small items. If your company needs custom printed envelopes for day-to-day communication with clients, employees, or vendors, browse our large selection of printed envelopes today.

While choosing the right business envelope size is important, you shouldn’t overlook the numerous upgrades, customizations, and security enhancements available with all of our business envelopes. Our online catalog includes everything from self-sealing “flip and stick” envelopes, to double window envelopes, and upgraded security envelopes (e.g. tinted seal for added privacy).


Do you believe that your business correspondence is a reflection of your brand identity? We do, too. That’s why, at Checkomatic, we’ve curated an extensive assortment of printed envelopes in different shapes and sizes. From self-sealing flip and tint envelopes to custom #10 envelopes - we offer a cornucopia of options to help you make a lasting impression every time.

Ordering printed business envelopes online from Checkomatic has never been easier. However, you should carefully evaluate the different sizing options available and select the most suitable business envelope size based on your needs. If you’re unsure of which specific size to choose, refer to the brief standard business envelope size guide below. 

Business Envelope Size Information:


We offer a wide array of customization options that can be included in your custom printed envelopes. These include security tinted envelope paper, double windows, self-adhesive seal,. However, you must select the right envelope size before customizing your order. Here are the most commonly used sizes:

  • 10 Envelopes: 4 1/8” x 9 1/2”

  • 9 Envelopes: 3 7/8” x 8 7/8” 

  • 6 3/4 Envelopes: 3 5/8” x 6 ½”

Most businesses tend to use #10 envelopes for their standard day-to-day business communication including invoices, documents, letters, statements, etc. Both #9 and #6 3/4 envelopes, which are commonly used as return envelopes, can fit inside #10 envelopes.

At Checkomatic, we take pride in offering printed envelopes of the highest quality at the most affordable prices. Generous discounts are applicable to bulk orders as well.