Square Envelopes
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Envelope Size
Envelope Type
Envelope Closure
Envelope Number
Envelope Material
Item # : 827896
Model # : QUAR1590
Protect important documents and confidential files with this pack of Quality Park Survivor self-adhesive Flap-Stik Tyvek mailer envelopes.
- Catalog envelopes are a convenient and reliable choice for personal and business mailing purposes
- White Tyvek envelopes provide superior protection for mailing important materials or documents
Price is $131.69
Unit of measure 100/Box
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Item # : 195776
Model # : ST50154-CC
Protect oversized documents with this 25-pack of Staples kraft jumbo 14 x 18-inch brown ungummed catalog envelopes.
- Jumbo catalog envelopes for large documents
- Made from brown kraft paper that conceals contents from prying eyes
Price is $27.59
Unit of measure 25/Pack
1-hr pickup
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Item # : 282586
Model # : EX4875-27-50
Lux® Size A6 square flap envelope in avocado color is versatile and spacious to hold multitude cards or photos measuring 4 3/4" x 6 1/2", is sold as 50 per pack.
- A6 Invitation Envelopes (4 3/4 x 6 1/2) are perfect to use for sending invitations/greeting cards/RSVP's/thank you cards/gifts for birthdays/graduations/holidays
- Comes in Avocado, 70lb. Text Paper
Price is $15.19
Unit of measure 50/Pack
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Item # : 660932
Model # : QUA90119R
Keep sensitive information safe with this 500-pack of Quality Park security-tinted left-window #10 Redi-Strip® envelopes.
- US #10 business envelopes with window are suitable for all your mailing needs
- Made from white wove 24 lb. paper for durability
Price is $88.39
Unit of measure 500/Box Price per unit $0.18/Envelope
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Item # : 24260466
Model # : FFW-10-50
LUX #10 Full Face Window Envelopes (4 1/8 x 9 1/2) in 28lb. Bright White are perfect for mailing Checks, Invoices, Letterhead, Personal Letters, Statements, Direct Mail and more!
- Dimensions: 4.125"L x 9.5"W
- Comes in 28lb. Bright White
Price is $20.99
Unit of measure 50/Pack
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Item # : 388065
Model # : SH4270-04-250
LUX® A2 Envelope in pastel green color measuring 4 3/8" x 5 3/4" is well suited for letter writers while it is designed to hold quarter folded sheet of paper and is sold as 250 per box.
- A2 (4 3/8 x 5 3/4) - Pastel Green are perfect for party invites/thank you cards/wedding invites/announcements
- Comes in Pastel Green, 60lb. Text Paper
Price is $45.10
Unit of measure 250/Box
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Item # : 2633117
Model # : 1623992I
JAM Paper® #6 Coin Envelopes, 3 3/8 x 6, Brown Kraft, 50/pack (1623992i)
- Features a straight flap with gummed closure and smooth paper finish.
- Size: #6 (3 3/8 x 6 inches)
Price is $14.49
Unit of measure 50/Pack
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Over 30
Item # : 534925
Model # : ST19872
Make sure shipped materials arrive in perfect condition with this box of 100 Staples white Tyvek EasyClose catalog envelopes.
- Tyvek Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
- White Tyvek envelopes provide superior protection for mailing important materials or documents
Price is $79.99, Regular price was $105.29, You save 24%
Unit of measure 100/Box Price per unit $0.80/Envelope
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Item # : 23996473
Model # : 24559-QP-50
Quality Park #10 Double Window Envelope (4 1/8 x 9 1/2) are perfect for mailing checks, invoices, letterhead, personal letters, statements, and direct mail
- #10 Double window business envelope
- Dimensions: 4.125"L x 9.5"W
Price is $41.59
Unit of measure 50/Pack
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Item # : 381944
Model # : ST381944-CC
Store and mail paperwork and other documents by using each piece in this 500-count box of 9 x 6-inch Staples gummed kraft catalog envelopes
- Catalog envelopes are a convenient and reliable choice for personal and business mailing purposes
- Comes in brown and made of kraft
Price is $47.39
Unit of measure 500/Box Price per unit $0.10/Envelope
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Over 30
Item # : 918765
Model # : ST918765-CC
Ship files or weighty documents with this 100-count box of Staples extra-heavyweight 6 x 9-inch manila clasp envelopes.
- Envelopes are perfect for filing, mailing, and storing important documents and reports
- Made of manila
Price is $19.59
Unit of measure 100/Box Price per unit $0.20/Envelope
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29% off of Staples Clasp & Moistenable Glue Kraft Catalog Envelopes, 10"L x 13"H, Brown, 250/Box (487494/17243)
Item # : 487494
Model # : ST487494-CC
Mail paperwork with these Staples 10 x 13-inch brown kraft clasp envelopes.
- Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
- Made from brown kraft paper that conceals contents from prying eyes
Price is $49.99, Regular price was $71.29, You save 29%
Unit of measure 250/Box Price per unit $0.20/Envelope
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Over 30
Item # : 472902
Model # : ST472902-CC
Enjoy convenient, reusable packaging with this 100-pack of Staples kraft 12 x 15.5-inch brown clasp envelopes.
- Catalog envelopes are a convenient and reliable choice for personal and business mailing purposes
- Comes in brown and made of kraft
Price is $36.79
Unit of measure 100/Box Price per unit $0.37/Envelope
1-hr pickup
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Item # : 1589160
Model # : LEKR700I
The JAM Paper A7 brown kraft paper bag recycled envelope is an ideal medium to send your cordial invitations for a wide variety of occasions.
- Brown Kraft paper bag recycled envelope
- Blank interior for personalized message
Price is $23.89
Unit of measure 50/Pack
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41% off of Staples Kraft Clasp & Moistenable Glue Catalog Envelopes, 10" x 13", Brown Kraft, 12/Pack (ST19005/19005)
Item # : 594413
Model # : ST19005/19005
Send oversize documents safely through the mail with this 12-pack of Staples 10 x 13-inch brown kraft clasp envelopes.
- Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
- Made from brown kraft paper that conceals contents from prying eyes
Price is $4.99, Regular price was $8.49, You save 41%
Unit of measure 12/Pack Price per unit $0.42/Envelope
1-hr pickup
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Item # : 473949
Model # : ST473949-CC
Mail sensitive documents with confidence in these Staples double-window gummed envelopes.
- Business envelopes are suitable for many mailing projects
- Made from white 24 lb. paper for durability
Price is $35.59
Unit of measure 500/Box Price per unit $0.07/Envelope
1-hr pickup
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Item # : 534990
Model # : ST534990-CC
Protect important documents from rough handling with this 100-pack of Staples kraft 6.5 x 9.5-inch brown catalog clasp envelopes.
- Catalog envelope is perfect for documents
- Comes in brown and made of kraft
Price is $30.29
Unit of measure 100/Box Price per unit $0.30/Envelope
1-hr pickup
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Item # : 570225
Model # : ST50157
Ensure that invoices, notices, and other documents arrive clean and undamaged with this 250-pack of Staples EasyClose 6 x 9-inch white wove side-opening booklet envelopes
- Booklet envelopes keep your documents flat in the mail
- Envelope size: 6"H x 9"W
Price is $39.99, Regular price was $49.49, You save 19%
Unit of measure 250/Box Price per unit $0.16/Envelope
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Item # : 381898
Model # : ST381898-CC
Save the hassle of applying address labels with this 1,000-pack of Staples check-size double-window security-tint laser gummed envelopes.
- Business envelopes are suitable for many mailing projects
- Made from white 24 lb. paper for durability
Price is $56.29
Unit of measure 1000/Box Price per unit $0.06/Envelope
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25% off of Staples QuickStrip EasyClose Self Seal Security Tinted Catalog Envelopes, 10" x 13", White, 100/Box (ST19957/19957)
Item # : 871075
Model # : ST19957/19957
Protect confidential documents from prying eyes with this 100-pack of Staples EasyClose 10 x 13-inch tamper-evident security-tinted catalog envelopes.
- Catalog envelope is perfect for confidential documentation
- Comes in white and made of paper
Price is $24.99, Regular price was $33.39, You save 25%
Unit of measure 100/Box Price per unit $0.25/Envelope
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Item # : 862999
Model # : ST862999-CC
Mail confidential information with this 50-pack of Staples QuickStrip 3-5/8 x 6-1/5-inch security-tinted white envelopes.
- QuickStrip business envelopes are suitable for many mailing projects
- Made from white 20 lb. paper for durability
Price is $5.59
Unit of measure 50/Box Price per unit $0.11/Envelope
1-hr pickup
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Over 30
Item # : 1588932
Model # : 31820I
The JAM Paper A6 regular white envelope is great to use for announcements and different kind of invitations.
- Regular white envelope
- Blank interior for personalized message
Price is $10.09
Unit of measure 50/Pack
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Item # : 892099
Model # : ST892099N-CC
Send invoices and letters with this 100-pack of Staples EasyClose 6 x 9-inch white wove catalog envelopes.
- Catalog envelopes are a convenient and reliable choice for personal and business mailing purposes
- Comes in white and made of paper
Price is $16.29
Unit of measure 100/Box Price per unit $0.16/Envelope
1-hr pickup
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Over 30
Item # : 263525
Model # : 218V0CL
Protect invoices, receipts and other documents with these JAM Paper clear hook-and-loop closure plastic letter booklet envelopes.
- Made of clear plastic with a smooth finish
- Letter size to keep all standard-size documents and files organized and protected
Price is $35.99
Unit of measure 12/Pack Price per unit $3.00/Envelope
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Item # : 381911
Model # : ST381911-CC
Send out laser-printed invoices and other documents with this 1,000-pack of Staples 4-3/16 x 9-inch white gummed double-window envelopes for laser forms.
- Business envelopes are suitable for many mailing projects
- Made from white 24 lb. paper for durability
Price is $75.29
Unit of measure 1000/Box Price per unit $0.08/Envelope
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Item # : 329841
Model # : ST21573-CC
Enjoy the convenience of easy-sealing envelopes by using these Staples white tear-resistant privacy-tinted #10 business envelopes.
- US #10 business envelopes are suitable for all your mailing needs
- Made from white 25 lb. paper for durability
Price is $27.09
Unit of measure 100/Box Price per unit $0.27/Envelope
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Item # : 261963
Model # : V018286
JAM Paper® 10" x 13" Brown paper Kraft bag open end envelope is constructed from 28 lbs. sturdy paper and comes with square gummed flap being ideal for greeting cards, invitations, weddings or any announcement, sold as 100 per pack.
- Manila Open End Catalog Envelopes
- Size: 10 x 13 inches
Price is $30.39
Unit of measure 100/Pack Price per unit $0.30/Envelope
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Item # : 535021
Model # : ST535021-CC
Keep documents safe with this 100-pack of Staples 10 x 15-inch brown kraft clasp envelopes.
- Envelopes are perfect for filing, mailing and storing important documents, and reports
- Made from brown kraft paper that conceals contents from prying eyes
Price is $43.79
Unit of measure 100/Box Price per unit $0.44/Envelope
1-hr pickup
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Item # : 427808
Model # : QUAR4610
Protect booklets, brochures, and other items while in transit with these Quality Park Survivor Tyvek self-seal expansion catalog mailers.
- Catalog envelopes are a convenient and reliable choice for personal and business mailing purposes
- White Tyvek envelopes provide superior protection for mailing important materials or documents
Price is $193.99
Unit of measure 100/Carton
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Item # : 660652
Model # : QUA41415
Quality Park Productsâ„¢ 9" x 12" Catalog envelope is security tinted for privacy as well as confidentiality.
- Redi-Strip® closure provide a secure seal to keep contents contained - simply peel off strip and press.
- Treated with an antimicrobial agent to protect the envelope from growth of bacteria, mold, mildew, fungus and odors
Price is $44.09
Unit of measure 100/Box Price per unit $0.44/Envelope
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Item # : 534909
Model # : ST19873
Send booklets, documents or small items with this 100-count box of Staples Tyvek 9 x 12-inch EasyClose catalog envelopes.
- Tyvek Catalog envelopes are a comfortable choice for anyone in need of a slightly more spacious envelope option
- White Tyvek envelope provides superior protection for mailing important materials or documents
Price is $79.99, Regular price was $114.69, You save 30%
Unit of measure 100/Box Price per unit $0.80/Envelope
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Item # : 507832
Model # : QUA37787
Ensure that essential documents reach their destinations safely with this box of 100 Quality Park extra-heavyweight letter-size brown kraft clasp envelopes.
- Catalog envelopes are a convenient and reliable choice for personal and business mailing purposes
- Made from brown kraft paper that conceals contents from prying eyes
Price is $64.39
Unit of measure 100/Box Price per unit $0.64/Envelope
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Item # : 486930
Model # : ST50188-CC
Make your mail easy to identify as first class with this 100-pack of Staples EasyClose 10 x 13-inch white first-class catalog envelopes.
- Catalog envelopes are a convenient and reliable choice for personal and business mailing purposes
- Comes in white and made of paper
Price is $45.19
Unit of measure 100/Box Price per unit $0.45/Envelope
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Item # : 263017
Model # : 218B1CL
Get long-lasting durability for documents and small items with this 12-pack of JAM Paper clear letter booklet button-and-string closure plastic envelopes.
- Made of clear plastic with a smooth finish
- Letter size to keep all standard-size documents and files organized and protected
Price is $34.79
Unit of measure 12/Pack Price per unit $2.90/Envelope
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Trending now
Price is $16.99, Regular price was $20.49, You save 17%
Unit of measure 100/Box Price per unit $0.17/File Folder
Delivery by Fri, May 02
1-hr pickup
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7% off of Staples QuickStrip EasyClose Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST50312-CC)
Price is $25.99, Regular price was $27.99, You save 7%
Unit of measure 500/Box Price per unit $0.05/Envelope
Delivery by Fri, May 02
1-hr pickup
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Price is $13.99, Regular price was $15.29, You save 8%
Unit of measure Dozen Price per unit $0.01/Post-it® Note
Delivery by Fri, May 02
1-hr pickup
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20% off of Glad 13 Gallon Trash Bag, 8.5"x8.5", Low Density, .72 mil, White, 100 Bags/Box (CLO 78526)
Price is $15.39, Regular price was $19.39, You save 20%
Unit of measure 100/Box Price per unit $0.15/bag
Delivery by Fri, May 02
1-hr pickup
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13% off of Staples Notepads, 8.5" x 11.75", Wide Ruled, White, 50 Sheets/Pad, Dozen (ST57339M/57339)
Price is $16.99, Regular price was $19.59, You save 13%
Unit of measure Dozen Price per unit $1.42/Pad
Delivery by Fri, May 02
1-hr pickup
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Over 30
There is something about a square flap on an envelope that denotes importance. It is no wonder then that many significant invitations and announcements are packaged in just such a wrapper. But don't make the mistake of thinking these classic mailers are just for personal use. Businesses can make a similar statement by choosing a square-flapped envelope, with or without a clear window. Peruse the dozens of options available from leading office supply brands like JAM Paper, LUX, and Staples.
Narrow Your Choices
Selecting a business envelope can be more daunting than you think. While it is nice to have choices, narrowing them down can be difficult. Square-flapped envelopes are available in dimensions ranging from 3 1/2" x 6" (the smallest commercial size available) to jumbo 13" x 19" mailers and everything in between, including the standard #10 envelope. As for color? Depending on your needs, 17 different color choices beckon, some with address windows, some without.
Not Quite Done Yet
You've determined your specific needs when it comes to color and size in a square-flapped envelope, but you're not quite done yet. Depending on what you are mailing, you may or may not need clear address windows. If you do need a window, how many and where should they be? Single left, single right, and double left windows are the most popular choices but not the only ones. A full-faced over-sized clear center window is also an option for special mailing projects.
Almost There
It should be apparent by now that the "one size fits all" days of business envelopes are long gone. As are the days when licking or using a sponge to seal them was the only choice. Yes, the old-school sealants are still available, but many other options are, too. Choose redi-seal strips that require no moisture or convenient peel-and-stick closures. Now that you have chosen your square envelope, purchase in packs of as few as 20 or as many as 1,000.
Narrow Your Choices
Selecting a business envelope can be more daunting than you think. While it is nice to have choices, narrowing them down can be difficult. Square-flapped envelopes are available in dimensions ranging from 3 1/2" x 6" (the smallest commercial size available) to jumbo 13" x 19" mailers and everything in between, including the standard #10 envelope. As for color? Depending on your needs, 17 different color choices beckon, some with address windows, some without.
Not Quite Done Yet
You've determined your specific needs when it comes to color and size in a square-flapped envelope, but you're not quite done yet. Depending on what you are mailing, you may or may not need clear address windows. If you do need a window, how many and where should they be? Single left, single right, and double left windows are the most popular choices but not the only ones. A full-faced over-sized clear center window is also an option for special mailing projects.
Almost There
It should be apparent by now that the "one size fits all" days of business envelopes are long gone. As are the days when licking or using a sponge to seal them was the only choice. Yes, the old-school sealants are still available, but many other options are, too. Choose redi-seal strips that require no moisture or convenient peel-and-stick closures. Now that you have chosen your square envelope, purchase in packs of as few as 20 or as many as 1,000.