Sponsored Products
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Quality Park Redi-Seal Security Tinted #10 Window Envelope, 4 1/8" x 9 1/2", White Wove, 500/Box (21418)~#|#~sp38165574_sc7Quality Park Redi-Seal Security Tinted #10 Window Envelope, 4 1/8" x 9 1/2", White Wove, 500/Box (21418)~#|#~sp38165572_sc7
Item: 458294
Model: QUA21418
Price is $99.29
Unit of measure 500/Box Price per unit $0.20/Envelope
Free Next-Day eligible by tomorrow
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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 $37.79
Unit of measure 100/Box Price per unit $0.38/Envelope
Free Next-Day eligible by tomorrow
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 $45.19
Unit of measure 100/Box Price per unit $0.45/Envelope
Free Next-Day eligible by tomorrow
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Mead Press It Seal It #10 Security Envelopes, 4 1/8" x 9 1/2", White, 45/Pack (MEA75026)~#|#~m007116469_sc7
Item: 2696277
Model: 75026
Price is $6.19
Unit of measure 45/Pack
Next-Day Delivery by tomorrow
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Staples Self Seal #13 Catalog Envelope, 10" x 13", White, 12/Pack (50293T-CC)~#|#~s1224595_sc7Staples Self Seal #13 Catalog Envelope, 10" x 13", White, 12/Pack (50293T-CC)~#|#~s1224597_sc7
Item: 594417
Model: 50293T
Price is $9.19
Unit of measure 12/Pack
Delivery by Wed, Feb 11
30-min pickup
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Quality Park Clasp Catalog Envelope, 6 1/2" x 9 1/2", Kraft, 100/Box (37863)~#|#~s0462609_sc7
Item: QUA37863
Model: QUA37863
Price is $33.13
Unit of measure Box
Delivery by Wed, Feb 04
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Quality Park Redi-Seal Self Seal Security Tinted #9 Double Window Envelope, 3 7/8" x 8 7/8", White Wove, 50/Pack (24529-50)~#|#~sp5822112_sc7Quality Park Redi-Seal Self Seal Security Tinted #9 Double Window Envelope, 3 7/8" x 8 7/8", White Wove, 50/Pack (24529-50)~#|#~s1196808_sc7
Item: 23996120
Model: 24529-50
Price is $39.09
Unit of measure 50/Pack
Free delivery by Wed, Feb 11
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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
Next-Day Delivery by tomorrow
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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
Item: 534958
Model: ST19856
Price is $99.49
Unit of measure 100/Box Price per unit $1.00/Envelope
Free Next-Day eligible by tomorrow
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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 $9.49
Unit of measure 25/Pack
Delivery by Fri, Feb 06
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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
Item: 472993
Model: ST50163-CC
Price is $58.29
Unit of measure 100/Box
Free Next-Day eligible by tomorrow
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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 $67.19
Unit of measure 100/Box
Free Next-Day eligible by tomorrow
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Staples EasyClose #9 Business Envelopes, 3 7/8" x 8 7/8", White, 500/Box (570235N)~#|#~s1223618_sc7Staples EasyClose #9 Business Envelopes, 3 7/8" x 8 7/8", White, 500/Box (570235N)~#|#~s1223622_sc7
Item: 570235
Model: ST570235N-CC
Price is $34.99
Unit of measure 500/Box Price per unit $0.07/Envelope
Delivery by Thu, Feb 05
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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 $45.79
Unit of measure 100/Box
Free Next-Day eligible by tomorrow
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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 $37.99
Unit of measure 100/Box Price per unit $0.38/Envelope
Free delivery by Wed, Feb 04
30-min pickup
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Staples Self Seal #13 1/2 Kraft Catalog Envelope, 10" x 13", Brown, 250/Box (ST486933-CC)~#|#~s1224504_sc7Staples Self Seal #13 1/2 Kraft Catalog Envelope, 10" x 13", Brown, 250/Box (ST486933-CC)~#|#~s1224575_sc7
Item: 486933
Model: ST486933-CC
Price is $61.49
Unit of measure 250/Box
Free Next-Day eligible by tomorrow
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JAM Paper Open End Catalog Envelope, 6" x 9", White, 25/Pack (1623192)~#|#~sp111772487_sc7JAM Paper Open End Catalog Envelope, 6" x 9", White, 25/Pack (1623192)~#|#~sp111772486_sc7
Item: 366643
Model: 1623192
Price is $9.59
Unit of measure 25/Pack
Delivery by Fri, Feb 06
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Quality Park Redi-Seal Kraft Catalog Envelope, 9" x 12", Brown, 100/Box (43511)~#|#~s0341571_sc7
Item: 802220
Model: QUA43511
Price is $25.29
Unit of measure 100/Box
Delivery by Fri, Feb 06
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Quality Park Clasp & Moistenable Glue Kraft Catalog Envelopes, 8.75" x 11.5", Brown Kraft, 100/Box (QUA37787)~#|#~sp42116469_sc7
Item: 507832
Model: QUA37787
Price is $65.99
Unit of measure 100/Box Price per unit $0.66/Envelope
Free Next-Day eligible by tomorrow
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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
Next-Day Delivery by tomorrow
30-min pickup
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Staples Laser Forms Double Window Envelopes, Wove White, 500/Box (ST473949-CC)~#|#~98F8178F-0805-4EA4-BD6B3386BC119E79_sc7Staples Laser Forms Double Window Envelopes, Wove White, 500/Box (ST473949-CC)~#|#~7CC0D6A4-3F5C-487D-8365CB48550DEE0C_sc7
Item: 473949
Model: ST473949-CC
Price is $36.49
Unit of measure 500/Box Price per unit $0.07/Envelope
Free Next-Day eligible by tomorrow
30-min pickup
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Staples Clasp Close Kraft Catalog Envelopes, 9"L x 12"H, Brown, 250/Box (487493/17242)~#|#~s1223342_sc7Staples Clasp Close Kraft Catalog Envelopes, 9"L x 12"H, Brown, 250/Box (487493/17242)~#|#~43A57CA3-A340-4B3C-AC4E3E8AB1D21D56_sc7
Item: 487493
Model: ST487493-CC
Price is $51.29
Unit of measure 250/Box Price per unit $0.20/Envelope
Free Next-Day eligible by tomorrow
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Staples Plastic Filing Envelope with Button & String Closure, Letter Size, Clear, 5/Pack (TR34530)~#|#~676D38D2-4E46-4901-953D90C0F89E4B4F_sc7Staples Plastic Filing Envelope with Button & String Closure, Letter Size, Clear, 5/Pack (TR34530)~#|#~2A31369B-A17A-47E8-8E8159B7E5856F08_sc7
Item: 599609
Model: TR34530-CC
Price is $13.59
Unit of measure 5/Pack Price per unit $2.72/Envelope
Next-Day Delivery by tomorrow
30-min pickup
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JAM Paper 10 x 13 Kraft Open End Envelopes with Peel and Seal Closure, Light Grey Kraft, 25/Pack (12931116a)~#|#~sp4211471_sc7JAM Paper 10 x 13 Kraft Open End Envelopes with Peel and Seal Closure, Light Grey Kraft, 25/Pack (12931116a)~#|#~sp4211470_sc7
JAM Paper 10 x 13 Kraft Open End Envelopes with Peel and Seal Closure, Light Grey Kraft, 25/Pack (12931116a) is Out of stock
Item: 2478098
Model: 12931116A
Price is $22.69
Unit of measure 25/Pack

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Page 1 of 4
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.