Square Envelopes
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Envelope Type
Envelope Closure
Envelope Number
Envelope Material
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 $35.99
Unit of measure 12/Pack Price per unit $3.00/Envelope
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Item # : 510623
Model # : QUA37793
Quality Park 9 1/2" x 12 1/2" Clasp envelope in brown color features a heavily gummed flap with sturdy metal clasp for secured seal.
- 9-1/2" x 12-1/2"
- Heavily gummed flap with sturdy, reusable metal clasp provides extra holding power
Price is $37.49
Unit of measure 100/Box
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Item # : 24260791
Model # : 20578-50
LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) in 70lb. Bright White are perfect for the Holidays, Invitations, Announcements, Sending Cards, and so much more!
- Dimensions: 4.75"L x 6.5"W
- Comes in 70lb. Bright White
Price is $13.09
Unit of measure 50/Pack
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Item # : 2103272
Model # : 73767C
Keep pamphlets, flyers and other papers secure while in transit with this 100-pack of JAM Paper A7 white invitation envelopes.
- Simple high quality A7 catalog envelopes, that get the job done
- Envelope size: 5 1/4"H x 7 1/4"W
Price is $25.49
Unit of measure 100/Pack
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Item # : 534800
Model # : ST534800-CC
Mail promotional material safely with this 100-pack of Staples kraft 9 x 12-inch brown self-sealing catalog 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 $32.39
Unit of measure 100/Box
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Item # : 366693
Model # : 1623197
JAM Paper® Open end envelope measuring 9" x 12" is perfectly sized for business correspondence, comes in white color and is sold as 25 per pack.
- Size: 9" x 12"
- Gummed closure with straight flap
Price is $11.19
Unit of measure 25/Pack
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Item # : 478157
Model # : ST19807-CC
Protect essential documents from damage with this 100-pack of Staples 10 x 13-inch white wove self-sealing catalog envelopes.
- Catalog envelope is perfect for catalogs, brochures, and documents
- Comes in white and made of paper
Price is $42.09
Unit of measure 100/Box
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Over 30
Item # : 570240
Model # : ST570240-CC
Mail business and personal correspondence with confidence by using this 500-pack #10 self-sealing envelopes.
- US #10 business envelopes are suitable for many mailing projects
- Made from white 24 lb. paper for durability
Price is $30.69
Unit of measure 500/Box Price per unit $0.06/Envelope
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Over 30
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 $87.97, Regular price was $117.29, You save 25%
Unit of measure 100/Box Price per unit $0.88/Envelope
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Item # : 23995341
Model # : 24559-QP-250
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
- Comes in White Wove w/ Self-Seal
- Dimensions: 4 1/8"L x 9 1/2"W
Price is $87.99
Unit of measure 250/Pack
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Item # : 534701
Model # : ST50162-CC
Transport vital documents securely with this 100-pack of Staples 6.5 x 9.5-inch brown 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 $33.99
Unit of measure 100/Box
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Over 30
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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Over 30
Item # : 479886
Model # : ST19785-CC
Mail documents securely with this 250-count box of 10 x 13-inch Staples EasyClose white wove catalog envelopes.
- Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
- White paper shows labeling and writing clear and concise
Price is $52.59
Unit of measure 250/Box
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Over 30
Item # : 822734
Model # : QUA43517
Send bulk mailings out on schedule with these time-saving Quality Park Redi-Seal catalog envelopes.
- Catalog envelopes are a convenient and reliable choice for personal and business mailing purposes
- Made of paper and comes in white
Price is $38.69
Unit of measure 100/Box Price per unit $0.39/Envelope
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Over 30
Item # : 570227
Model # : ST19826-CC
Mail catalogs, brochures and other reading materials with these Staples EasyClose white 9 x 12-inch woven side-open booklet envelopes.
- Envelopes are perfect for filing, mailing and storing important documents, and reports
- White woven paper stock resists tearing
Price is $45.19
Unit of measure 100/Box
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Over 30
Item # : 513235
Model # : QUA37835
Ship photos and other important documents safely with this box of 100 Quality Park brown gummed clasp envelopes.
- Booklet envelopes are a comfortable choice for anyone in need of more spacious envelope option
- Made from brown kraft paper that conceals contents from prying eyes
Price is $43.69
Unit of measure 100/Box
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Over 30
Item # : 534792
Model # : ST534792-CC
Mail marketing materials to clients or vendors with these Staples 7.5 x 10.5 kraft self-sealing catalog envelopes.
- Catalog envelopes are perfect for catalogs, documents, and invoices
- Made from brown kraft paper that conceals contents from prying eyes
Price is $33.69
Unit of measure 100/Box
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Item # : 486933
Model # : ST486933-CC
Ensure correspondence arrives undamaged with this box of 250 Staples 10 x 13-inch brown kraft self-sealing catalog envelopes.
- Catalog envelopes are perfect for catalogs, brochures, and documents
- Made from brown kraft paper that conceals contents from prying eyes
Price is $59.29
Unit of measure 250/Box
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Item # : 510664
Model # : QUA37810
Quality Park 12" x 15 1/2" Clasp envelope in brown color features a heavily gummed flap with sturdy metal clasp for secured seal.
- 12" x 15-1/2"
- Heavily gummed flap with sturdy, reusable metal clasp provides extra holding power
Price is $85.69
Unit of measure 100/Box Price per unit $0.86/Envelope
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Item # : 377354
Model # : QUA63560
Communicate throughout the office with these brown Quality Park string and button inter-department envelopes.
- Simple high-quality catalog envelopes that get the job done
- Envelope size: 13"H x 10"W
Price is $81.79
Unit of measure 100/Box
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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 $37.29
Unit of measure 12/Pack Price per unit $3.11/Envelope
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Over 30
Item # : 233577
Model # : ST233577-CC
Keep documents secure with this 100-pack of Staples kraft 7.5 x 10.5-inch brown 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 $32.19
Unit of measure 100/Box
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Over 30
Item # : 1588431
Model # : 218E25BGOPFUCL
Protect and transport documents with this six-count package of JAM Paper assorted-color elastic-closure plastic letter booklet envelopes.
- Made of plastic in assorted colors with a smooth finish
- Letter size to keep all standard-size documents and files organized and protected
Price is $34.69
Unit of measure 6/Pack Price per unit $5.78/Envelope
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Over 30
Item # : 472886
Model # : ST472886N-CC
Transport documents securely with this 100-count box of Staples 9 x 12-inch white wove gummed-flap catalog envelopes.
- Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
- White paper shows labeling and writing clear and concise
Price is $43.09
Unit of measure 100/Box Price per unit $0.43/Envelope
1-hr pickup
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Over 30
Item # : 486954
Model # : ST59962-CC
Ship business documents or publications with this 250-count box of Staples 10 x 13-inch white woven catalog envelopes.
- Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
- White paper shows labeling and writing clear and concise
Price is $58.49
Unit of measure 250/Box
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Over 30
Item # : 486940
Model # : ST486940-CC
Keep stacks of documents in good condition with this 250-pack of Staples 9 x 12-inch brown kraft catalog envelopes.
- Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes
- Made from brown kraft paper that conceals contents
Price is $53.79
Unit of measure 250/Box
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Item # : 381964
Model # : ST50262-CC
Mail brochures and catalogs without bending them using this 100-pack of Staples brown kraft 6 x 9-inch self-sealing 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 $29.19
Unit of measure 100/Box Price per unit $0.29/Envelope
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Item # : 329850
Model # : ST21571-CC
Make shipping marketing materials easy with these Staples 10 x 13-inch white tear-resistant catalog envelopes.
- Catalog envelopes are perfect for catalogs, brochures, and leaflets
- Durable, lightweight, and tear-resistant 10gsm woven paper.
Price is $86.09
Unit of measure 100/Box Price per unit $0.86/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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Over 30
Item # : 486931
Model # : ST486931-CC
Ship catalogs and documents with this 250-count box of Staples 9 x 12-inch kraft self-sealing catalog envelopes.
- Catalog envelopes are perfect for catalogs, brochures, and documents
- Made from brown kraft paper that conceals contents from prying eyes
Price is $69.99
Unit of measure 250/Box Price per unit $0.28/Envelope
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Trending now
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.