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Color Family
Envelope Closure
Envelope Flap Style
Envelope Number
Envelope Pack Size
Envelope Size
Envelope Type
Envelope Window Location
Height in Inches
Pack Qty
Paper Weight in Pounds
Security Tint
True Color
Width in Inches
Brand
Envelope Paper Finish
Environmental Design Features
Made in America
Material of Item
Quick Ship
White
Self Seal
Square
#1 Catalog
100 Per Pack
6" x 9"
Catalog
None
9
100
28
Untinted
White
6
Quill Brand
N/A
N/A
N/A
Tyvek
N/A

Shop Business Envelopes

   (2367 Products)
All filters 2367 items found
Quill Brand® Clasp Catalog Envelope, 9 x 12, Kraft, 100/Box (7CL91228)
Quill Brand® Clasp Catalog Envelope, 9" x 12", Kraft, 100/Box (7CL91228)
Item #: 901-7CL91228
Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
Made from kraft paper that conceals contents from prying eyes
Size: 9" x 12"
$28.99
1-3 box
Save 3%
$27.99
4+ box
Staples® #10, QuickStrip® Security-Tint Envelopes, 500/BoxEStaples® #10, QuickStrip® Security-Tint Envelopes, 500/BoxE
Staples® #10, QuickStrip® Security-Tint Envelopes, 500/BoxE
Item #: 901-787385STP
US #10 business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
These envelopes measure 4 1/8"H x 9 1/2"L in size, providing enough space for your mail
$30.99
1-3 box
Save 3%
$29.99
4+ box
Quill Brand® Clasp Catalog Envelope, 10 x 13, Kraft, 100/Box (7CL101328)
Quill Brand® Clasp Catalog Envelope, 10" x 13", Kraft, 100/Box (7CL101328)
Item #: 901-7CL101328
Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
28-lb. heavyweight Kraft paper
Size: 10" x 13"
$34.99
1-3 box
Save 2%
$33.99
4+ box
Quill Brand Self Seal Security Tinted #10 Left Window Envelope, 4 1/8 x 9 1/2, White Wove, 500/BoxQuill Brand Self Seal Security Tinted #10 Left Window Envelope, 4 1/8 x 9 1/2, White Wove, 500/Box
Quill Brand Self Seal Security Tinted #10 Left Window Envelope, 4 1/8" x 9 1/2", White Wove, 500/Box (3016452)
Item #: 901-60350Q
Envelopes are suitable for all your mailing needs
Made from 24 lbs. white wove paper for durability
These envelopes measure 4 1/8" x 9 1/2" in size, providing enough space for your mail
$55.99
1-3 box
Save 3%
$53.99
4+ box
Quality Park Redi-Seal Security Tinted #9 Double Window Envelopes, 3 7/8 x 8 7/8, White Wove, 500/Quality Park Redi-Seal Security Tinted #9 Double Window Envelopes, 3 7/8 x 8 7/8, White Wove, 500/
Quality Park Redi-Seal Security Tinted #9 Double Window Envelopes, 3 7/8" x 8 7/8", White Wove, 500/Box (QUA24529)
Item #: 901-24529
#9 business envelopes are suitable for many mailing projects
Made from white wove 24 lbs. paper for durability
These envelopes measure 3 7/8"H x 8 7/8"L in size, providing enough space for your mail.
$67.99
Per box
Quill Brand Gummed #10 Business Envelope, 4-1/8 x 9-1/2, White Wove, 500/Box (WW10ES)Quill Brand Gummed #10 Business Envelope, 4-1/8 x 9-1/2, White Wove, 500/Box (WW10ES)
Quill Brand Gummed #10 Business Envelope, 4-1/8" x 9-1/2", White Wove, 500/Box (WW10ES)
Item #: 901-WW10ES
US # 10 business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
Size: 4-1/8" x 9-1/2"
$21.59
1-3 box
Save 9%
$19.59
4+ box
14% off
Quill Brand Easy Close Self Seal Security Tinted #10 Business Envelope, 4-1/8 x 9-1/2, White, 100/Quill Brand Easy Close Self Seal Security Tinted #10 Business Envelope, 4-1/8 x 9-1/2, White, 100/
Quill Brand Easy Close Self Seal Security Tinted #10 Business Envelope, 4-1/8" x 9-1/2", White, 100/Box (69703 / 70711)
Item #: 901-75762
US # 10 business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
Size: 4-1/8" x 9-1/2"
$13.59 Save 14%
$11.59
Per box
Quill Brand Gummed Security Tinted #8 Double Window Envelope, 3 5/8 x 8 5/8, White, 500/Box (69741Quill Brand Gummed Security Tinted #8 Double Window Envelope, 3 5/8 x 8 5/8, White, 500/Box (69741
Quill Brand Gummed Security Tinted #8 Double Window Envelope, 3 5/8" x 8 5/8", White, 500/Box (69741 / 70727)
Item #: 901-75041
Business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
Size: 3-5/8" x 8-5/8"
$47.99
1-3 box
Save 4%
$45.99
4+ box
Quill Brand EasyClose Security Tinted #10 Business Envelopes, 4 1/8 x 9 1/2, White, 500/Box (30164Quill Brand EasyClose Security Tinted #10 Business Envelopes, 4 1/8 x 9 1/2, White, 500/Box (30164
Quill Brand EasyClose Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (3016453)
Item #: 901-60353
US #10 business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
These envelopes measure 4 1/8"H x 9 1/2"L in size, providing enough space for your mail
$46.99
1-3 box
Save 4%
$44.99
4+ box
Quill Brand Gummed Security Tinted #9 Double Window Envelope, 3 7/8 x 8 7/8, White, 500/Box (75042
Quill Brand Gummed Security Tinted #9 Double Window Envelope, 3 7/8" x 8 7/8", White, 500/Box (75042)
Item #: 901-75042
Business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
Size: 3-7/8" x 8-7/8"
$74.99
1-3 box
Save 4%
$71.99
4+ box
Quality Park Redi-Seal Security Tinted #10 Double Window Envelopes, 4 1/8 x 9 1/2, White, 500/BoxQuality Park Redi-Seal Security Tinted #10 Double Window Envelopes, 4 1/8 x 9 1/2, White, 500/Box
Quality Park Redi-Seal Security Tinted #10 Double Window Envelopes, 4 1/8" x 9 1/2", White, 500/Box (QUA24559)
Item #: 901-886849
US #10 business envelopes are suitable for many mailing projects
Made from white 24 lb. wove paper for durability
These envelopes measure 4 1/8"H x 9 1/2"L in size, providing enough space for your mail
$90.99
Per box
Double Window Security #8 Envelopes for QuickBooks and Quicken Software; 8-5/8 x 3-5/8Double Window Security #8 Envelopes for QuickBooks and Quicken Software; 8-5/8 x 3-5/8
Double Window Security #8 Envelopes for QuickBooks and Quicken Software; 8-5/8 x 3-5/8"
Item #: 901-92663Q
Size: 8-5/8x3-5/8"
Laser MP top, 3-up (no stub), continuous MP top
Security tint for privacy
$88.99
Per box
Staples® 9 x 12 White Wove QuickStrip® Catalog Envelopes, 100/BoxStaples® 9 x 12 White Wove QuickStrip® Catalog Envelopes, 100/Box
Staples® 9" x 12" White Wove QuickStrip® Catalog Envelopes, 100/Box
Item #: 901-379479STP
Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
White paper shows labeling and writing clear and concise
Dimensions: 9"L x 12"H
$31.99
1-3 box
Save 3%
$30.99
4+ box
Quill Brand® Clasp Catalog Envelope, 6 x 9, Kraft, 100/Box (7CL6928)
Quill Brand® Clasp Catalog Envelope, 6" x 9", Kraft, 100/Box (7CL6928)
Item #: 901-7CL6928
Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
28-lb. heavyweight Kraft paper
Size: 6" x 9"
$24.59
1-3 box
Quill Brand® Easy Close Catalog Envelope, 9 x 12,Brown Kraft, 250/Box (PS91228B)Quill Brand® Easy Close Catalog Envelope, 9 x 12,Brown Kraft, 250/Box (PS91228B)
Quill Brand® Easy Close Catalog Envelope, 9" x 12",Brown Kraft, 250/Box (PS91228B)
Item #: 901-PS91228B
Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
28-lb. plain brown Kraft paper
Size: 9" x 12"
$62.99
1-3 box
Save 3%
$60.99
4+ box
Staples Self Seal Catalog Envelopes, 12 x 15.5, White, 100/Box (609123/73142)Staples Self Seal Catalog Envelopes, 12 x 15.5, White, 100/Box (609123/73142)
Staples Self Seal Catalog Envelopes, 12" x 15.5", White, 100/Box (609123/73142)
Item #: 901-609123STP
Catalog envelope is perfect for brochures and documents
Comes in white and made of paper
Dimensions: 12"L x 15.5"H; size #15.5
$61.99
Per box
Quality Park Redi-Strip Security Tinted #10 Business Window Envelopes, 4 1/8 x 9 1/2, White Wove,Quality Park Redi-Strip Security Tinted #10 Business Window Envelopes, 4 1/8 x 9 1/2, White Wove,
Quality Park Redi-Strip Security Tinted #10 Business Window Envelopes, 4 1/8" x 9 1/2", White Wove, 500/Box (90119)
Item #: 901-90119Q
US #10 business envelopes with window are suitable for all your mailing needs
Made from white wove 24 lb. paper for durability
These envelopes measure 4 1/8"H x 9 1/2"L in size, providing enough space for your mail
$88.99
Per box
Quill Brand Easy Close Self Seal #10 Business Envelope, 4-1/8 x 9-1/2, White, 500/Box (69686 / 707Quill Brand Easy Close Self Seal #10 Business Envelope, 4-1/8 x 9-1/2, White, 500/Box (69686 / 707
Quill Brand Easy Close Self Seal #10 Business Envelope, 4-1/8" x 9-1/2", White, 500/Box (69686 / 70701)
Item #: 901-75746Q
US # 10 business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
Size: 4-1/8" x 9-1/2"
$38.99
1-3 box
Save 5%
$36.99
4+ box
Quill Brand Security Tinted #10 Double Window Envelopes, 4 1/8 x 9 1/2, White Wove, 500/Box (30164Quill Brand Security Tinted #10 Double Window Envelopes, 4 1/8 x 9 1/2, White Wove, 500/Box (30164
Quill Brand Security Tinted #10 Double Window Envelopes, 4 1/8" x 9 1/2", White Wove, 500/Box (3016430)
Item #: 901-60349
US #10 business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
These envelopes measure 4 1/8"H x 9 1/2"L in size, providing enough space for your mail
$50.99
1-3 box
Save 3%
$48.99
4+ box
27% off
Staples Laser Check Size Double-Window Security-Tint Gummed Envelopes, 1,000/Box (381898/17046)Staples Laser Check Size Double-Window Security-Tint Gummed Envelopes, 1,000/Box (381898/17046)
Staples Laser Check Size Double-Window Security-Tint Gummed Envelopes, 1,000/Box (381898/17046)
Item #: 901-381898
Business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
These envelopes measure 3 5/8"H x 8 7/8"L in size, providing enough space for your mail
$90.99 Save 27%
$65.59
Per box
Quality Park Clasp & Moistenable Glue Kraft Catalog Envelope, 12 x 15 1/2, Kraft, 100/Box (37810)
Quality Park Clasp & Moistenable Glue Kraft Catalog Envelope, 12" x 15 1/2", Kraft, 100/Box (37810)
Item #: 901-QUA37810
12" x 15-1/2"
Heavily gummed flap with sturdy, reusable metal clasp provides extra holding power
32-lb., brown Kraft
$50.99
1-3 box
Save 3%
$48.99
4+ box
Quality Park Clasp & Moistenable Glue Kraft Catalog Envelope, 9 1/2 x 12 1/2, Kraft, 100/Box (3779
Quality Park Clasp & Moistenable Glue Kraft Catalog Envelope, 9 1/2" x 12 1/2", Kraft, 100/Box (37793)
Item #: 901-510623
9-1/2" x 12-1/2"
Heavily gummed flap with sturdy, reusable metal clasp provides extra holding power
Extra-heavyweight stock is ideal for heavy or bulky mailings
$41.99
1-3 box
Save 4%
$39.99
4+ box
Staples® 9 x 12 Brown Kraft Catalog Envelopes; 250/Box (486940/17032)Staples® 9 x 12 Brown Kraft Catalog Envelopes; 250/Box (486940/17032)
Staples® 9" x 12" Brown Kraft Catalog Envelopes; 250/Box (486940/17032)
Item #: 901-486940
Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
Made from brown kraft paper that conceals contents
Dimensions: 9"L x 12"H, size #10
$51.99
1-3 box
Save 3%
$49.99
4+ box
34% off
Out of stock
Medical Arts Press® Double Window Self Seal Envelopes, 3-7/8x8-7/8, Security Tint,  500/Box
Medical Arts Press® Double Window Self Seal Envelopes, 3-7/8x8-7/8", Security Tint, 500/Box
Item #: 901-32084
US #9 business envelopes are suitable for many mailing projects
Made from white 24 lb. paper for durability
These envelopes measure 3 7/8"H x 8 7/8"L in size, providing enough space for your mail
$40.99 Save 34%
$26.99
Per box
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Want to know more about Shop Business Envelopes

What Are Window Envelopes?

A window envelope is a type of conventional envelope that features a plastic film, or window, to allow the recipient’s name and address to be printed on the document or paper within. These envelopes are typically purchased alongside other shipping, packing & mailing supplies.

They are ideal for businesses and corporations because a typed name and address look more professional than handwriting. These window envelopes pair great with other mailing supplies, such as envelope moisteners and letter openers for keeping paperwork and documentation organized and labeled.

What Types of Envelopes with Windows Are Available?

Window envelopes, also called commercial envelopes, have triangular flaps and are sized according to number. The most prominent are numbers 7, 10, 12, and 14. Envelopes with windows can range in size from about 3.75 x 6.5 inches to 5.5 x 11 inches. Each one typically features a blank field for handwritten or printed mailing and return addresses, or for address imprints with pad-and-ink custom stamps. Further information on how to pick the right size envelope can be found on the Quill business envelope size chart.

Some have single or double windows to display pre-printed addresses on inside documents. For businesses who often mail out sensitive papers with confidential information, some business window envelopes include tinted inner weaves to conceal the contents when held against a light. Like many conventional envelopes, business envelopes for outgoing mail with windows have secure closures, including moisture-activated adhesives and peel-and-seal strips.

How Can Business Envelopes with Windows Be Used?

Whether you work at a law office or run your own medical practice, window envelopes can be used for an array of applications across different businesses and industries. They can safely transport documents and sensitive materials and elevate the appearance of any greeting or invitation. Here are just a few things you can send with window envelopes:

  • Interoffice communication: Interoffice business window envelopes feature a button and string design and are sized to fit standard letter sized sheets of paper, making them ideal for transferring and tracking documents between different departments within the same company.
  • Legal and medical documentation: Tear and moisture-resistant open window envelopes, like the ones created by Tyvek, are ideal for sending out medical records and legal paperwork that can’t afford to be damaged or destroyed.
  • Letters and invoices: Number 10 window envelopes are the most common size available, measuring 4.125 x 9.5 inches, and are perfect for mailing out most forms of business correspondence, such as letters and invoices.

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