Sponsored Products
Staples Self Seal Catalog Envelopes, 10"L x 13"H, White, 100/Box (21571)~#|#~2BCC85DC-6F27-4BEF-B606BC5C93B925E3_sc7Staples Self Seal Catalog Envelopes, 10"L x 13"H, White, 100/Box (21571)~#|#~4377B21E-23BF-41CC-85D64F7A218A7986_sc7
16% off of Staples Self Seal Catalog Envelopes, 10"L x 13"H, White, 100/Box (21571)
Item: 329850
Model: ST21571-CC
Price is $69.99Regular price was $84.19, You save 16%
Unit of measure 100/Box Price per unit $0.70/Envelope
Free delivery by Tue, May 06
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Staples Tyvek EasyClose Catalog Envelopes, 9"L x 12"H, White with Green Diamond Border, 100/Box (ST19856)~#|#~sp37727757_sc7Staples Tyvek EasyClose Catalog Envelopes, 9"L x 12"H, White with Green Diamond Border, 100/Box (ST19856)~#|#~sp37727756_sc7
15% off of Staples Tyvek EasyClose Catalog Envelopes, 9"L x 12"H, White with Green Diamond Border, 100/Box (ST19856)
Item: 534958
Model: ST19856
Price is $79.99Regular price was $94.79, You save 15%
Unit of measure 100/Box Price per unit $0.80/Envelope
Free delivery by Tue, May 06
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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
23% off of Staples Extra-Heavyweight Clasp & Moistenable Glue Catalog Envelopes, 9"L x 12"H, Manila, 100/Box (121962/19276)
Item: 121962
Model: ST59961-CC
Price is $19.99Regular price was $25.99, You save 23%
Unit of measure 100/Box Price per unit $0.20/Envelope
Delivery by Tue, May 06
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LUX 5 3/4" x 8 3/4" 80lbs. A9 Invitation Envelopes W/Peel & Press, Wisteria Purple, 50/Pack~#|#~m000082193_sc7
Item: 282959
Model: LUX-4895-106-50
No reviews yet
Price is $32.39
Unit of measure 50/Pack
Delivery by Wed, May 14
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Staples Tyvek EasyClose Catalog Envelopes, 12"L x 15.5"H, White, 100/Box (ST19869)~#|#~sp37069929_sc7
12% off of Staples Tyvek EasyClose Catalog Envelopes, 12"L x 15.5"H, White, 100/Box (ST19869)
Item: 534941
Model: ST19869
Price is $109.99Regular price was $126.39, You save 12%
Unit of measure 100/Box
Free delivery by Tue, May 06
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JAM Paper® Plastic Envelopes with Hook & Loop Closure, Letter Size, Clear, 12/Pack (218V0CL)~#|#~sp42125171_sc7JAM Paper® Plastic Envelopes with Hook & Loop Closure, Letter Size, Clear, 12/Pack (218V0CL)~#|#~sp42125170_sc7
Item: 263525
Model: 218V0CL
Price is $35.99
Unit of measure 12/Pack Price per unit $3.00/Envelope
Free delivery by Mon, May 12
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Staples Gummed Catalog Envelopes, 9"L x 12"H, White, 250/Box (486949R)~#|#~s1224588_sc7Staples Gummed Catalog Envelopes, 9"L x 12"H, White, 250/Box (486949R)~#|#~s1224587_sc7
Item: 486949
Model: ST486949R-CC
Price is $52.59
Unit of measure 250/Box Price per unit $0.21/Envelope
Free delivery by Tue, May 06
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Self Seal Catalog Envelope 10" x 13", White, 100/Carton (TYE10132WE)~#|#~s0537570_sc7
Item: 947685
Model: TYE10132WE
Price is $284.99
Unit of measure 100/Carton Price per unit $2.85/Case
Free delivery by Mon, May 12
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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 $7.59
Unit of measure 100/Box Price per unit $0.08/Envelope
Delivery by Tue, May 06
1-hr pickup
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Staples Brand Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (570240/99294)~#|#~1D22CEC3-EF53-4FB5-A5BA1C460E01583A_sc7Staples Brand Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (570240/99294)~#|#~1DDEEC0B-AA88-4AF4-80F52C96DE579C95_sc7
Item: 570240
Model: ST570240-CC
Price is $30.69
Unit of measure 500/Box Price per unit $0.06/Envelope
Delivery by Tue, May 06
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SURVIVOR Open Side Expansion Self Seal #13 Catalog Envelope, 10" x 13" x 2", White, 25/Pack (QUAR4611)~#|#~m002277816_sc7
Item: 2708498
Model: QUAR4611
Price is $96.79
Unit of measure 25/Pack
Free delivery by Tue, May 06
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Staples First Class Self Seal #13 Envelope, 10" x 13", White with green diamond border, 100/Box (ST195032-CC)~#|#~B9E43806-A13F-42A4-9B33EF8939143347_sc7Staples First Class Self Seal #13 Envelope, 10" x 13", White with green diamond border, 100/Box (ST195032-CC)~#|#~B114CDC0-F53A-44C8-B7FBE317A7591DCF_sc7
Item: 195032
Model: ST195032-CC
Price is $44.59
Unit of measure 100/Box
Free delivery by Thu, May 08
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Staples Kraft #7 Currency Envelopes, 3 1/2 x 6 1/2, Brown, 500/Box (SPL17199)~#|#~s1223637_sc7Staples Kraft #7 Currency Envelopes, 3 1/2 x 6 1/2, Brown, 500/Box (SPL17199)~#|#~C6CD950D-BF6A-472A-A2F059EA1C33D82B_sc7
19% off of Staples Kraft #7 Currency Envelopes, 3 1/2 x 6 1/2, Brown, 500/Box (SPL17199)
Item: 535112
Model: ST19850-CC
Price is $24.99Regular price was $31.09, You save 19%
Unit of measure 500/Box Price per unit $0.05/Envelope
Delivery by Tue, May 06
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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 Tue, May 06
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Staples Clasp & Moistenable Glue #12.5 Kraft Catalog Envelopes, 9.5" x 12.5", Brown, 100/Box (535013/17076)~#|#~E968CCD2-6185-4CD2-B55B622EE7927DD1_sc7Staples Clasp & Moistenable Glue #12.5 Kraft Catalog Envelopes, 9.5" x 12.5", Brown, 100/Box (535013/17076)~#|#~ACFEF361-8B3E-4AE3-9E357B00F9DC63E3_sc7
Item: 535013
Model: ST17745-CC
Price is $42.89
Unit of measure 100/Box Price per unit $0.43/Envelope
Free delivery by Tue, May 06
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Staples First Class EasyClose Catalog Envelopes, 9"L x 12"H, White and Green, 100/Box (SPL486929)~#|#~s1224518_sc7Staples First Class EasyClose Catalog Envelopes, 9"L x 12"H, White and Green, 100/Box (SPL486929)~#|#~s1224514_sc7
Item: 486929
Model: ST50191-CC
Price is $37.79
Unit of measure 100/Box Price per unit $0.38/Envelope
Free delivery by Tue, May 06
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Staples Self Seal Kraft Catalog Envelopes, 9"L x 12"H, Brown, 100/Box (534800/17104)~#|#~8F04272A-2149-420C-9D7DFC65633D51B8_sc7Staples Self Seal Kraft Catalog Envelopes, 9"L x 12"H, Brown, 100/Box (534800/17104)~#|#~BD24A3C7-A3F5-42F1-85B5B001F34A5072_sc7
Item: 534800
Model: ST534800-CC
Price is $32.39
Unit of measure 100/Box
Delivery by Tue, May 06
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Staples Heavyweight Clasp & Moistenable Glue Catalog Envelopes, 10"L x 13"H, Manila, 100/Box (122069/14207)~#|#~s1223301_sc7Staples Heavyweight Clasp & Moistenable Glue Catalog Envelopes, 10"L x 13"H, Manila, 100/Box (122069/14207)~#|#~D98982BD-1FCD-4949-924842469CF06D14_sc7
43% off of Staples Heavyweight Clasp & Moistenable Glue Catalog Envelopes, 10"L x 13"H, Manila, 100/Box (122069/14207)
Item: 122069
Model: ST122069-CC
Price is $24.99Regular price was $44.59, You save 43%
Unit of measure 100/Box Price per unit $0.25/Envelope
Delivery by Tue, May 06
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Quality Park Self Seal A2 Invitation Envelope 4 3/8" x 5 3/4", White, 100/Box (QUA10740)~#|#~sp43812739_sc7Quality Park Self Seal A2 Invitation Envelope 4 3/8" x 5 3/4", White, 100/Box (QUA10740)~#|#~sp43812738_sc7
Item: 582032
Model: QUA10740
Price is $24.89
Unit of measure 100/Box
Delivery by Tue, May 06
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Quality Park Clasp & Moistenable Glue Kraft Catalog Envelopes, 9.25" x 14.5", Brown Kraft, 100/Box (QUA37894)~#|#~sp42117054_sc7Quality Park Clasp & Moistenable Glue Kraft Catalog Envelopes, 9.25" x 14.5", Brown Kraft, 100/Box (QUA37894)~#|#~sp42117052_sc7
Item: 813480
Model: QUA37894
Price is $61.99
Unit of measure 100/Box
Free delivery by Tue, May 06
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Quality Park Tyvek Open End Flap-Stik Expansion Self Seal Catalog Envelope, 12" x 16" x 2", White, 100/Carton (R4650)~#|#~s0171555_sc7
Item: 427811
Model: QUAR4650
No reviews yet
Price is $393.99
Unit of measure 100/Carton
Free delivery by Tue, May 06
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JAM Paper® Plastic Envelopes with Button and String Tie Closure, Letter Size, Clear, 12/Pack (218B1CL)~#|#~sp42125182_sc7JAM Paper® Plastic Envelopes with Button and String Tie Closure, Letter Size, Clear, 12/Pack (218B1CL)~#|#~sp42125181_sc7
Item: 263017
Model: 218B1CL
Price is $34.79
Unit of measure 12/Pack Price per unit $2.90/Envelope
Delivery by Mon, May 12
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Staples QuickStrip EasyClose #6 3/4 Business Envelopes, 3 5/8" x 6 1/2", White, 100/Box (14011)~#|#~s1223331_sc7Staples QuickStrip EasyClose #6 3/4 Business Envelopes, 3 5/8" x 6 1/2", White, 100/Box (14011)~#|#~s1223330_sc7
Item: 487506
Model: ST14011-CC
Price is $14.59
Unit of measure 100/Box
Delivery by Tue, May 06
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Staples Economy Gummed Catalog Envelopes, 6" x 9", White, 250/Box (50303T)~#|#~s1224478_sc7Staples Economy Gummed Catalog Envelopes, 6" x 9", White, 250/Box (50303T)~#|#~s1224625_sc7
Item: 247668
Model: ST50303-CC
Price is $31.49
Unit of measure 250/Box Price per unit $0.13/Envelope
Delivery by Tue, May 06
1-hr pickup
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JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, White, 25/Pack (4023213)~#|#~m003904861_sc7JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, White, 25/Pack (4023213)~#|#~m003904860_sc7
Item: 366015
Model: 4023213
Price is $9.29
Unit of measure 25/Pack
Delivery by Mon, May 12
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Quality Park Redi-Seal Self Seal #10 Double Window Envelope, 4 1/2" x 9 1/2", White Wove, 250/Pack (24559-QP-250)~#|#~s1196808_sc7
Item: 23995341
Model: 24559-QP-250
Price is $87.99
Unit of measure 250/Pack
Free delivery by Wed, May 14
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Staples Button & String Inter-Departmental Kraft Envelopes, 10" x 13", Brown Kraft, 100/Box (50163/472993)~#|#~9D274A67-108B-4C47-A39C329CA2BD2CDB_sc7Staples Button & String Inter-Departmental Kraft Envelopes, 10" x 13", Brown Kraft, 100/Box (50163/472993)~#|#~B7B7C031-D58A-412B-A1812F2C1BE4CC96_sc7
27% off of Staples Button & String Inter-Departmental Kraft Envelopes, 10" x 13", Brown Kraft, 100/Box (50163/472993)
Item: 472993
Model: ST50163-CC
Price is $39.99Regular price was $55.49, You save 27%
Unit of measure 100/Box
Free delivery by Tue, May 06
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Partners Tyvek Envelopes, 10" x 13", Silver, 100/Case (TYC1013S)~#|#~m004079057_sc7
Item: 2301084
Model: TYC1013S
Price is $273.59
Unit of measure 100/Carton
Free delivery by Mon, May 12
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Staples Clasp Catalog Envelopes, 9"L x 12"H, White, 100/Box (570253/14210)~#|#~B78D4D6F-9F26-47D2-B4B8329FA44C5D09_sc7Staples Clasp Catalog Envelopes, 9"L x 12"H, White, 100/Box (570253/14210)~#|#~1CE168ED-0E78-4848-9AED10B325E040B9_sc7
Item: 570253
Model: ST570253-CC
Price is $42.49
Unit of measure 100/Box
Free delivery by Tue, May 06
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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.