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 $27.69
Unit of measure 500/Box Price per unit $0.06/Envelope
Delivery by Fri, Oct 03
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 $10.49
Unit of measure 100/Box Price per unit $0.10/Envelope
Delivery by Fri, Oct 03
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, Oct 03
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 $56.49
Unit of measure 100/Box
Free delivery by Fri, Oct 03
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Staples Self Seal Security Tinted #9 Double Window Envelopes, 3 7/8" x 8 7/8", White, 500/Box (ST28731-CC)~#|#~C945D44A-B550-4411-A459E3DC59387BBE_sc7Staples 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
42% off of Staples Self Seal Security Tinted #9 Double Window Envelopes, 3 7/8" x 8 7/8", White, 500/Box (ST28731-CC)
Item: 1775861
Model: ST28731-CC
Price is $19.99, Regular price was $34.99, You save 42%
Unit of measure 500/Box Price per unit $0.04/Envelope
Delivery by Fri, Oct 03
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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 $34.29
Unit of measure 100/Box Price per unit $0.34/Envelope
Delivery by Fri, Oct 03
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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 $27.29
Unit of measure 100/Box Price per unit $0.27/Envelope
Delivery by Fri, Oct 03
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 $27.49
Unit of measure 100/Box Price per unit $0.28/Envelope
Delivery by Fri, Oct 03
30-min pickup
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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, Oct 03
30-min pickup
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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 $5.99
Unit of measure 12/Pack Price per unit $0.50/Envelope
Delivery by Fri, Oct 03
30-min pickup
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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 $30.99
Unit of measure 500/Box Price per unit $0.06/Envelope
Delivery by Fri, Oct 03
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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 $20.19
Unit of measure 100/Box Price per unit $0.20/Envelope
Delivery by Fri, Oct 03
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 $11.19
Unit of measure 100/Box Price per unit $0.11/Envelope
Delivery by Fri, Oct 03
30-min pickup
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Staples QuickStrip EasyClose Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (ST50307-CC)~#|#~888BE6B1-31CD-47C0-A8C1657439776121_sc7Staples QuickStrip EasyClose Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (ST50307-CC)~#|#~DDE921C8-55FF-44C0-B2C5590B29C8AE44_sc7
Item: 394053
Model: ST50307-CC
Price is $12.49
Unit of measure 100/Box Price per unit $0.12/Envelope
Delivery by Fri, Oct 03
30-min pickup
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Staples Laser Security Tinted Double Window Envelopes, 3 5/8" x 8 7/8", Wove White, 500/Box (ST394062-CC)~#|#~C39630DD-6A75-47E8-8D8FD913E48BEAD0_sc7Staples Laser Security Tinted Double Window Envelopes, 3 5/8" x 8 7/8", Wove White, 500/Box (ST394062-CC)~#|#~79F8C193-D873-4D92-AF21E923C116C374_sc7
Item: 394062
Model: ST394062-CC
Price is $30.49
Unit of measure 500/Box Price per unit $0.06/Envelope
Delivery by Fri, Oct 03
30-min pickup
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Staples Self Seal Security Tinted #8 Double Window Envelopes, 3 5/8" x 8 5/8", White, 500/Box (ST28732-CC)~#|#~5AA6A364-B3B6-4E90-9FD6B9CA55DD462E_sc7Staples 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
42% off of Staples Self Seal Security Tinted #8 Double Window Envelopes, 3 5/8" x 8 5/8", White, 500/Box (ST28732-CC)
Item: 1775860
Model: ST28732-CC
Price is $19.99, Regular price was $34.99, You save 42%
Unit of measure 500/Box Price per unit $0.04/Envelope
Delivery by Fri, Oct 03
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Staples QuickStrip EasyClose Self Seal Invitation Envelopes, White Wove, 100/Box (ST394063/394063)~#|#~EB89E0A5-2ECE-4700-9BF5E55295E34138_sc7Staples QuickStrip EasyClose Self Seal Invitation Envelopes, White Wove, 100/Box (ST394063/394063)~#|#~2ECC89D3-7BF2-48B2-B461F0F032E15A05_sc7
Item: 394063
Model: ST394063/394063
Price is $11.19
Unit of measure 100/Box Price per unit $0.11/Envelope
Delivery by Fri, Oct 03
30-min pickup
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Staples Extra-Heavyweight Clasp & Moistenable Glue Catalog Envelopes, 9"L x 12"H, Manila, 100/Box (121962/19276)~#|#~s1223295_sc7Staples Extra-Heavyweight Clasp & Moistenable Glue Catalog Envelopes, 9"L x 12"H, Manila, 100/Box (121962/19276)~#|#~B44A4FD3-B69F-4978-85ECE38CDF0AE4D9_sc7
Item: 121962
Model: ST59961-CC
Price is $27.29
Unit of measure 100/Box Price per unit $0.27/Envelope
Delivery by Fri, Oct 03
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Staples QuickStrip EasyClose Self Seal Catalog Envelopes, 10" x 13", White, 100/Box (ST379476N-CC)~#|#~s1224482_sc7Staples QuickStrip EasyClose Self Seal Catalog Envelopes, 10" x 13", White, 100/Box (ST379476N-CC)~#|#~s1224626_sc7
Item: 379476
Model: ST379476N-CC
Price is $33.39
Unit of measure 100/Box Price per unit $0.33/Envelope
Delivery by Fri, Oct 03
30-min pickup
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Staples Gummed Kraft Catalog Envelopes, 6" x 9", Brown, 500/Box (ST381944-CC)~#|#~s1224539_sc7Staples Gummed Kraft Catalog Envelopes, 6" x 9", Brown, 500/Box (ST381944-CC)~#|#~s1224619_sc7
Item: 381944
Model: ST381944-CC
Price is $48.59
Unit of measure 500/Box Price per unit $0.10/Envelope
Free delivery by Fri, Oct 03
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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 $5.69
Unit of measure 50/Box Price per unit $0.11/Envelope
Delivery by Fri, Oct 03
30-min pickup
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, 24lb. White~#|#~m004064012_sc7
Item: 2146371
Model: 51867-MI-50
No reviews yet
Price is $12.39
Unit of measure 50/Pack
Delivery by Mon, Oct 13
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LUX Peel & Seel Self Seal #10 Window Envelope, 4 1/2" x 9 1/2", White, 50/Pack  (75761-50)~#|#~sp14807363_sc7
Item: 24260686
Model: 75761-50
Price is $26.09
Unit of measure 50/Pack
Delivery by Mon, Oct 13
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Staples Self Seal Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST511289-CC)~#|#~C1DE4A05-5BF1-4CB6-AF706FC6A1C4D67B_sc7Staples Self Seal Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST511289-CC)~#|#~73F89DCA-30B6-46FA-B098CD35CE9CBEC8_sc7
Item: 511289
Model: ST511289-CC
Price is $30.99
Unit of measure 500/Box Price per unit $0.06/Envelope
Delivery by Fri, Oct 03
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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.