Double Window Envelopes | Business Check Envelopes

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Order Double Window envelopes and get FREE shipping! Perfect for mailing checks. invoices, and other business-related documents. These envelopes feature two transparent poly film windows. With these two left-hand windows, you can display both return and mailing addresses. No handwritten addresses required, which makes for a fast and efficient mailing process. The sizing and positioning of these two windows are compatible with many popular software packages. Choose from a variety of different envelope and window sizes, with standard gum or self seal options. Select Double window envelopes for a fast and efficient business mailing option.

Double window envelopes also feature a security tint printed pattern on the interior. This pattern darkens the paper material and obscures the contents of your envelope, which ensures your content remains hidden from view. Ideal for mailing personal or business information such as financial documents, medical records, checks, bank statements, or legal documents. Available in multiple types of double window envelopes, including Quickbooks check envelopes (sized 3 5/8 x 8 3/4) and standard double window envelopes (sized 4 1/8 x 9 1/2). If a standard design does not suit your needs, we can work with you to create a custom-made envelope that's just right for you. Use Double Window envelopes to mail sensitive information quickly and securely.

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Double Window Envelopes

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All Window Envelopes

Need a different type of Check or Window envelopes? Choose from our wide selection of check and window envelopes to find one that's just right for you. Available in #6 3/4, #7 3/4, #8 5/8, #9, #10, #11, #12, 6x9 and 9x12 sizes. Window envelopes are great for mailing letters, checks, invoices or any business correspondence with a pre-printed mailing address. Use window envelopes to display the recipient's name and address without printing on the envelope itself. Shop for Window envelopes.

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Custom Double Window Envelopes

Not finding the exact envelope looking for? Although we offer a wide variety of envelopes, we know sometimes you need something unique. We have access to hundreds of envelope styles, sizes, and colors. So we can often find exactly what you need, and get it to you quickly! Many of our special order items can ship same or next day. If you're looking for Custom Double Window Envelopes with unique windows in different shapes, sizes, and placements get more information or Request a Quote.

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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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Double Window Envelopes Size Guide

If you're not sure what size envelope you need, measure the length (width) and height of your mailing insert, document, and/or check, as well as the size and location of the windows. You'll want to choose an envelope that is at least 1/16" or 1/8" larger than your insert, to make sure it fits.

Not sure what size you need? Our size guide can help you pick the right envelope, for the right reason.

  • Quickbooks (3 5/8 x 8 3/4) - Perfect for mailing checks or invoices from Quickbooks software.
  • #8 5/8 (3 5/8 x 8 5/8) - Ideal for many printed commercial and business checks.
  • #9 (3 7/8 x 8 7/8) - Fits a variety of business checks, invoices, or statements.
  • #10 (4 1/8 x 9 1/2) - Standard business envelope size. Fits an 8 1/2 x 11 piece of paper folded in thirds.

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