Check Envelopes - Single & Double Window Envelopes

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Order Check envelopes and get FREE shipping! Single and double window envelopes are perfect for mailing a variety of business checks. Shop our selection of Check envelopes to find one that's just right for you. Check envelopes come in a variety of sizes and styles to fit your mailing needs. Our most popular sizes include #6 3/4, #7 3/4, #8 5/8, #9 and #10 envelopes. For added security, select Check envelopes with a security tint to help hide sensitive information from view.

Choose single window check envelopes and add your company name, logo, or return address for professional and personalized look. The window in the lower left corner will still display pre-printed addressee information. If your check has your return address included, the double window check envelope will be the perfect choice. To make it easy for you, we offer both styles of check envelopes with a convenient self-seal strip.

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Check Envelopes

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Window Envelopes

Looking for more Window envelopes? Transparent Poly-film windows offer recipients a glimpse into envelope contents. These envelopes are a wonderful choice for business communication. We offer a variety of styles and colors so finding the perfect envelope is easy. Available in #6 3/4, #7 3/4, #8 5/8, #9, #10, #11, #12, 6x9 and 9x12 sizes. Perfect for sending pre-printed letters, checks, invoices, statements, or other documents. Shop Window Envelopes.

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#10 Envelopes

Looking for more #10 envelopes? Our #10 envelopes come in a wide selection of colors, including many Astrobright, pastel, natural, and white. You can also choose a traditional gummed closure, or self seal, for added convenience. These #10 envelopes are perfect for mailing most documents. Use them to mail invoices, checks, brochures, or other important documents. Shop for #10 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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Check Envelope Size Guide

Not sure what size you need? Our Check envelopes come in a variety of popular sizes and styles. The most popular sizes for mailing business checks are #8 5/8 or #9. These envelopes are slightly smaller than a standard (#10) envelope.

Available Sizes

  • #6 1/2 - (3 1/2 x 6 1/4) Fits a personal check, plus a small insert - up to 3x6.
  • #6 3/4 - (3 5/8 x 6 1/2) Fits a personal check, plus a small insert - up to 3 1/2 x 6 1/4.
  • #7 3/4 - (3 7/8 x 7 1/2) Standard small envelope, most commonly used for personal checks.
  • #8 5/8 - (3 5/8 x 8 5/8) Can be used as a return envelope. Common for smaller checks.
  • #9 - (3 7/8" x 8 7/8) Return envelope. Fits comfortably inside a standard #10 envelope.
  • #10 - (4 1/8 x 9 1/2) Standard business envelope. Fits an 8 1/2 x 11 piece of paper folded in thirds.

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