Sponsored Products
Staples QuickStrip EasyClose Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST50312-CC)~#|#~s1223633_sc7Staples QuickStrip EasyClose Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST50312-CC)~#|#~s1223639_sc7
Item: 787385
Model: ST50312-CC
Price is $26.99
Unit of measure 500/Box Price per unit $0.05/Envelope
Delivery by Fri, Aug 22
30-min pickup
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Staples QuickStrip EasyClose Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (ST50308-CC)~#|#~04BF5D88-0DCB-4C46-8A97D67F61C726B8_sc7Staples QuickStrip EasyClose Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (ST50308-CC)~#|#~F7FF46B5-6BB8-466E-99786E7BF515AACC_sc7
Item: 394057
Model: ST50308-CC
Price is $10.29
Unit of measure 100/Box Price per unit $0.10/Envelope
Delivery by Fri, Aug 22
30-min pickup
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Staples QuickStrip EasyClose Self Seal Catalog Envelopes, 9" x 12", White, 100/Box (ST379479-CC)~#|#~8B7D8301-A106-47D2-9346A753590113EF_sc7Staples QuickStrip EasyClose Self Seal Catalog Envelopes, 9" x 12", White, 100/Box (ST379479-CC)~#|#~0CA4F8BE-F4B3-4D06-8F04C5B15E189C3C_sc7
Item: 379479
Model: ST379479-CC
Price is $26.79
Unit of measure 100/Box Price per unit $0.27/Envelope
Delivery by Fri, Aug 22
30-min pickup
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Staples QuickStrip EasyClose Kraft Self Seal Catalog Envelopes, 9" x 12", Brown, 100/Box (ST381970-CC)~#|#~s1224480_sc7Staples QuickStrip EasyClose Kraft Self Seal Catalog Envelopes, 9" x 12", Brown, 100/Box (ST381970-CC)~#|#~s1224481_sc7
Item: 381970
Model: ST381970-CC
Price is $22.49
Unit of measure 100/Box Price per unit $0.22/Envelope
Delivery by Fri, Aug 22
30-min pickup
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Quality Park Clasp Nonstandard Kraft Catalog Envelope, 10" x 13", Light Kraft, 100/Box (QUA38197)~#|#~s0171283_sc7
Item: 813547
Model: QUA38197
Price is $55.09
Unit of measure 100/Box
Free delivery by Fri, Aug 22
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Staples Self Seal Security Tinted #10 Window Envelopes, 4 1/8" x 9 1/2", White Wove, 500/Box (ST511290-CC)~#|#~FEB14886-B768-46F3-B2B3AFBABEBFD7C4_sc7Staples Self Seal Security Tinted #10 Window Envelopes, 4 1/8" x 9 1/2", White Wove, 500/Box (ST511290-CC)~#|#~06821414-15D3-4B18-A5F0A3B87C9D8448_sc7
Item: 511290
Model: ST511290-CC
Price is $30.19
Unit of measure 500/Box Price per unit $0.06/Envelope
Delivery by Fri, Aug 22
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Staples EasyClose Kraft Catalog Envelopes, 10"L x 13"H, Brown, 100/Box (381969/19023)~#|#~F8D38AFF-BF1B-44BA-927E4BAD0395E984_sc7Staples EasyClose Kraft Catalog Envelopes, 10"L x 13"H, Brown, 100/Box (381969/19023)~#|#~27E9D898-F83D-4F24-B0E6E539E0F6853D_sc7
Item: 381969
Model: ST381969-CC
Price is $33.39
Unit of measure 100/Box Price per unit $0.33/Envelope
Delivery by Fri, Aug 22
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Staples Clasp & Moistenable Glue #10 Kraft Catalog Envelopes, 9"L x 12"H, Brown, 12/Pack (19004/594412)~#|#~s1223347_sc7
Item: 594412
Model: ST19004-CC
Price is $5.89
Unit of measure 12/Pack Price per unit $0.49/Envelope
Delivery by Fri, Aug 22
30-min pickup
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Staples Self Seal Self Seal Security Tinted #8 Double Window Envelopes, 3 5/8" x 8 5/8", White, 500/Box (ST28732-CC)~#|#~C1DE4A05-5BF1-4CB6-AF706FC6A1C4D67B_sc7Staples Self Seal Self Seal Security Tinted #8 Double Window Envelopes, 3 5/8" x 8 5/8", White, 500/Box (ST28732-CC)~#|#~F184BBF9-34E0-4442-81F1861DBB29DFFD_sc7
Item: 1775860
Model: ST28732-CC
Price is $35.79
Unit of measure 500/Box Price per unit $0.07/Envelope
Free delivery by Fri, Aug 22
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Staples Kraft Clasp & Moistenable Glue Catalog Envelopes, 9" x 12", Brown, 100/Box (ST187021-CC)~#|#~713459B4-5C29-4E83-B41A0AC28C10738C_sc7Staples Kraft Clasp & Moistenable Glue Catalog Envelopes, 9" x 12", Brown, 100/Box (ST187021-CC)~#|#~23812E19-B2D1-4CDD-8C465B30D749EFFE_sc7
Item: 187021
Model: ST187021-CC
Price is $26.59
Unit of measure 100/Box Price per unit $0.27/Envelope
Delivery by Fri, Aug 22
30-min pickup
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Staples Self Seal Self Seal Security Tinted #9 Double Window Envelopes, 3 7/8" x 8 7/8", White, 500/Box (ST28731-CC)~#|#~C1DE4A05-5BF1-4CB6-AF706FC6A1C4D67B_sc7Staples Self Seal Self Seal Security Tinted #9 Double Window Envelopes, 3 7/8" x 8 7/8", White, 500/Box (ST28731-CC)~#|#~F5441B5F-2F28-4D45-BEE05F26392EE091_sc7
Item: 1775861
Model: ST28731-CC
Price is $35.79
Unit of measure 500/Box Price per unit $0.07/Envelope
Free delivery by Fri, Aug 22
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Staples Kraft Clasp & Moistenable Glue Catalog Envelopes, 10" x 13", Brown, 100/Box (ST187039-CC)~#|#~27C9B96E-F97A-4128-92E49D560D038946_sc7Staples Kraft Clasp & Moistenable Glue Catalog Envelopes, 10" x 13", Brown, 100/Box (ST187039-CC)~#|#~C070EB62-2654-4D15-A8D7EBA0EF3D971A_sc7
Item: 187039
Model: ST187039-CC
Price is $35.99
Unit of measure 100/Box Price per unit $0.36/Envelope
Free delivery by Fri, Aug 22
30-min pickup
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Staples QuickStrip EasyClose Self Seal #1 Catalog Envelopes, 6" x 9", White, 100/Box (ST892099N-CC)~#|#~s1224614_sc7Staples QuickStrip EasyClose Self Seal #1 Catalog Envelopes, 6" x 9", White, 100/Box (ST892099N-CC)~#|#~s1224615_sc7
Item: 892099
Model: ST892099N-CC
Price is $16.29
Unit of measure 100/Box Price per unit $0.16/Envelope
Delivery by Fri, Aug 22
30-min pickup
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Staples Kraft Clasp & Moistenable Glue Catalog Envelopes, 10" x 13", Brown Kraft, 12/Pack (ST19005/19005)~#|#~BAD43E8C-7FDB-4D8A-91C3D83A06FF1BF4_sc7Staples Kraft Clasp & Moistenable Glue Catalog Envelopes, 10" x 13", Brown Kraft, 12/Pack (ST19005/19005)~#|#~16CF4CC2-8E68-491E-B35FBDF79FAA3FC3_sc7
Item: 594413
Model: ST19005/19005
Price is $8.69
Unit of measure 12/Pack Price per unit $0.72/Envelope
Delivery by Fri, Aug 22
30-min pickup
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Staples Self Seal Self Seal Security Tinted #10 Double Window Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST28730-CC)~#|#~C1DE4A05-5BF1-4CB6-AF706FC6A1C4D67B_sc7Staples Self Seal Self Seal Security Tinted #10 Double Window Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST28730-CC)~#|#~22F7C042-EEBE-4C34-8AC6CCDCE93451D7_sc7
Item: 1775862
Model: ST28730-CC
Price is $35.79
Unit of measure 500/Box Price per unit $0.07/Envelope
Free delivery by Fri, Aug 22
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Quality Park Clasp Kraft Catalog Envelope, 10" x 13", Kraft, 250/Box (37597)~#|#~s0293058_sc7Quality Park Clasp Kraft Catalog Envelope, 10" x 13", Kraft, 250/Box (37597)~#|#~s0171250_sc7
Item: 813389
Model: QUA37597
Price is $82.59
Unit of measure 250/Box
Free delivery by Fri, Aug 22
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Staples Kraft Clasp & Moistenable Glue Catalog Envelopes, 6" x 9", Brown, 100/Box (ST186999-CC)~#|#~42649BB5-E8A4-40A3-B6BC516099812E10_sc7Staples Kraft Clasp & Moistenable Glue Catalog Envelopes, 6" x 9", Brown, 100/Box (ST186999-CC)~#|#~5FB5FB85-382B-4AD6-89F259EC8E596053_sc7
Item: 186999
Model: ST186999-CC
Price is $19.69
Unit of measure 100/Box Price per unit $0.20/Envelope
Delivery by Fri, Aug 22
30-min pickup
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Staples QuickStrip EasyClose Self Seal Security Tinted Catalog Envelopes, 10" x 13", White, 100/Box (ST19957/19957)~#|#~s1224637_sc7Staples QuickStrip EasyClose Self Seal Security Tinted Catalog Envelopes, 10" x 13", White, 100/Box (ST19957/19957)~#|#~s1224576_sc7
Item: 871075
Model: ST19957/19957
Price is $34.19
Unit of measure 100/Box Price per unit $0.34/Envelope
Delivery by Fri, Aug 22
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Staples Clasp & Moistenable Glue #15.5 Kraft Catalog Envelopes, 12" x 15.5", Brown, 100/Box (472902/19273)~#|#~B1A7E20E-7195-4296-BBDAB29BDF33CF88_sc7Staples Clasp & Moistenable Glue #15.5 Kraft Catalog Envelopes, 12" x 15.5", Brown, 100/Box (472902/19273)~#|#~DB5E5BDD-D14D-45AA-924C1B2B4A473ACB_sc7
Item: 472902
Model: ST472902-CC
Price is $36.79
Unit of measure 100/Box Price per unit $0.37/Envelope
Free delivery by Fri, Aug 22
30-min pickup
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Staples QuickStrip EasyClose Self Seal Security Tinted #6 3/4 Business Envelopes, 3 5/8" x 6 1/2", White, 50/Box (ST862999-CC)~#|#~37F2D5CE-8A5E-49FC-A5FCEF34AC652B96_sc7Staples QuickStrip EasyClose Self Seal Security Tinted #6 3/4 Business Envelopes, 3 5/8" x 6 1/2", White, 50/Box (ST862999-CC)~#|#~8C2500BC-A88D-48CD-B934455268FC04AC_sc7
Item: 862999
Model: ST862999-CC
Price is $5.59
Unit of measure 50/Box Price per unit $0.11/Envelope
Delivery by Fri, Aug 22
30-min pickup
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Staples QuickStrip EasyClose Self Seal Security Tinted #6 3/4 Business Envelopes, 3 5/8" x 6 1/2", White, 100/Box (ST50313-CC)~#|#~s1223597_sc7Staples QuickStrip EasyClose Self Seal Security Tinted #6 3/4 Business Envelopes, 3 5/8" x 6 1/2", White, 100/Box (ST50313-CC)~#|#~s1223609_sc7
Item: 862857
Model: ST50313-CC
Price is $10.89
Unit of measure 100/Box Price per unit $0.11/Envelope
Delivery by Fri, Aug 22
30-min pickup
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Staples Clasp & Moistenable Glue Kraft Catalog Envelope, 11 1/2" x 14 1/2", Brown, 100/Box (ST17748-CC)~#|#~s1223345_sc7Staples Clasp & Moistenable Glue Kraft Catalog Envelope, 11 1/2" x 14 1/2", Brown, 100/Box (ST17748-CC)~#|#~s1223341_sc7
Item: 535039
Model: ST17748-CC
Price is $65.49
Unit of measure 100/Box
Free delivery by Fri, Aug 22
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Staples Clasp & Moistenable Glue Kraft Catalog Envelopes, 10"L x 15"H, Brown, 100/Box (535021/19814)~#|#~sp45960592_sc7Staples Clasp & Moistenable Glue Kraft Catalog Envelopes, 10"L x 15"H, Brown, 100/Box (535021/19814)~#|#~E8F6B4B3-8E31-4BCF-8B1129085D2D1679_sc7
Item: 535021
Model: ST535021-CC
Price is $43.79
Unit of measure 100/Box Price per unit $0.44/Envelope
Free delivery by Fri, Aug 22
30-min pickup
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Quality Park Redi-Strip Catalog Envelope, 9" x 12", White, 100/Box (QUA41415)~#|#~s0440350_sc7Quality Park Redi-Strip Catalog Envelope, 9" x 12", White, 100/Box (QUA41415)~#|#~s1172753_sc7
Item: 660652
Model: QUA41415
Price is $44.09
Unit of measure 100/Box Price per unit $0.44/Envelope
Free delivery by Fri, Aug 22
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Staples EasyClose Self Seal #10 1/2 Kraft Catalog Envelope, 9" x 12", Brown, 250/Box (ST479888-CC)~#|#~s1224497_sc7Staples EasyClose Self Seal #10 1/2 Kraft Catalog Envelope, 9" x 12", Brown, 250/Box (ST479888-CC)~#|#~s1224495_sc7
Item: 479888
Model: ST479888-CC
Price is $64.59
Unit of measure 250/Box Price per unit $0.26/Envelope
Free delivery by Fri, Aug 22
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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.