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LUX 5 1/2 x 8 1/2 Booklet Envelopes 50/Pack, 24lb. Bright White (49420-50)~#|#~sp14807389_sc7
Item: 24261177
Model: 49420-50
Price is $15.79
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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Quality Park Kraft Button & String Inter-Departmental Envelope 10" x 13", Blue, 100/Carton (QUA63577)~#|#~sp44342534_sc7Quality Park Kraft Button & String Inter-Departmental Envelope 10" x 13", Blue, 100/Carton (QUA63577)~#|#~sp44342533_sc7
Item: 813412
Model: QUA63577
Price is $198.59
Unit of measure 100/Carton
Free Next-Day eligible by tomorrow
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LUX #10 Square Flap Envelopes (4 1/8 x 9 1/2) 50/Pack, Holiday Green (LUX-4860-L17-50)~#|#~sp14807483_sc7
Item: 24260610
Model: LUX-4860-L17-50
No reviews yet
Price is $26.49
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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LUX Moistenable Glue Security Tinted Booklet Window Envelope, 6" x 9", 24lb. White w/ Sec. Tint, 50/Pack (69BW-24WMI-50)~#|#~sp12274947_sc7LUX Moistenable Glue Security Tinted Booklet Window Envelope, 6" x 9", 24lb. White w/ Sec. Tint, 50/Pack (69BW-24WMI-50)~#|#~sp12275036_sc7
Item: 24148643
Model: 69BW-24WMI-50
Price is $36.39
Unit of measure 50/Pack
Free delivery by Wed, Dec 17
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Staples Self Seal Kraft Catalog Envelopes, 9.5"L x 12.5"H, Brown, 100/Box (SPL381962)~#|#~94015978-EB59-48E9-925D68D69797573C_sc7Staples Self Seal Kraft Catalog Envelopes, 9.5"L x 12.5"H, Brown, 100/Box (SPL381962)~#|#~D9CAA66C-45D5-4A57-A2F5FDAFD57FCD32_sc7
Item: 381962
Model: ST50195
Price is $46.89
Unit of measure 100/Box
Free Next-Day eligible by tomorrow
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JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Red Recycled, 25/Pack (356730561)~#|#~m003757873_sc7JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Red Recycled, 25/Pack (356730561)~#|#~m003562853_sc7
Item: 2103398
Model: 356730561
No reviews yet
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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JAM Paper A2 Strathmore Invitation Envelopes, 4.375 x 5.75, Natural White Linen, 25/Pack (99761)~#|#~m007159157_sc7JAM Paper A2 Strathmore Invitation Envelopes, 4.375 x 5.75, Natural White Linen, 25/Pack (99761)~#|#~m007159156_sc7
Item: 263987
Model: 99761
No reviews yet
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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LUX 5 3/4" x 8 3/4" 3.5 mil Square Flap Envelopes W/Peel & Seal, Crystal Clear, 50/Pack~#|#~m000081564_sc7
Item: 282915
Model: CCA9-50
No reviews yet
Price is $19.59
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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JAM Paper A10 Invitation Envelopes, 6 x 9.5, White, 25/Pack (12039)~#|#~sp115352023_sc7JAM Paper A10 Invitation Envelopes, 6 x 9.5, White, 25/Pack (12039)~#|#~sp115352019_sc7
Item: 366032
Model: 12039
Price is $9.89
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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JAM Paper A6 Colored Invitation Envelopes, 4.75 x 6.5, Red Recycled, 50/Pack (67503I)~#|#~sp115352048_sc7JAM Paper A6 Colored Invitation Envelopes, 4.75 x 6.5, Red Recycled, 50/Pack (67503I)~#|#~sp115352047_sc7
Item: 1588941
Model: 67503I
No reviews yet
Price is $15.89
Unit of measure 50/Pack
Delivery by Mon, Dec 15
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Staples Gummed Kraft Catalog Envelopes, 9"L x 12"H, Brown, 100/Box (SPL194969)~#|#~s1224532_sc7Staples Gummed Kraft Catalog Envelopes, 9"L x 12"H, Brown, 100/Box (SPL194969)~#|#~s1224533_sc7
Item: 194969
Model: SPL194969/50190
Price is $35.09
Unit of measure 100/Box
Free Next-Day eligible by tomorrow
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Garnet (EX4875-26-50)~#|#~m000081911_sc7
Item: 282609
Model: EX4875-26-50
No reviews yet
Price is $14.95
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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LUX Self Seal Booklet Envelope, 6" x 9 1/2", Bright White, 250/Pack (12039-250)~#|#~sp14807347_sc7
Item: 24260967
Model: 12039-250
No reviews yet
Price is $48.49
Unit of measure 250/Pack
Free delivery by Wed, Dec 17
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JAM Paper A7 Parchment Invitation Envelopes, 5.25 x 7.25, Natural Recycled, 50/Pack (35394I)~#|#~sp136742284_sc7JAM Paper A7 Parchment Invitation Envelopes, 5.25 x 7.25, Natural Recycled, 50/Pack (35394I)~#|#~sp136742279_sc7
Item: 1589230
Model: 35394I
Price is $20.49
Unit of measure 50/Pack
Delivery by Mon, Dec 15
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JAM Paper Cellophane Envelope with Peel & Seal Closure, 8 7/16 x 10 1/4, Clear, 100/Pack (8X10CELLO)~#|#~m000068423_sc7
Item: 262918
Model: 8X10CELLO
No reviews yet
Price is $80.59
Unit of measure 100/Pack
Free delivery by Mon, Dec 15
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LUX #6 3/4 Regular Envelopes (3 5/8 x 6 1/2) 50/Pack, 24lb. Bright White w/ Press-Stik (634W-PS-50)~#|#~sp5822112_sc7LUX #6 3/4 Regular Envelopes (3 5/8 x 6 1/2) 50/Pack, 24lb. Bright White w/ Press-Stik (634W-PS-50)~#|#~sp5873690_sc7
Item: 23995950
Model: 634W-PS-50
No reviews yet
Price is $18.99
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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Quality Park Kraft Button & String Inter-Departmental Envelope 10" x 13", Brown, 100/Box (QUA63562)~#|#~sp42179896_sc7Quality Park Kraft Button & String Inter-Departmental Envelope 10" x 13", Brown, 100/Box (QUA63562)~#|#~sp42179895_sc7
Item: 377355
Model: QUA63562
Price is $104.29
Unit of measure 100/Box
Free Next-Day eligible by tomorrow
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JAM Paper A2 Colored Invitation Envelopes, 4 3/8" x 5 3/4", Assorted Colors, 150/Pack (956A2brogvy)~#|#~10C3ADA3-FBCA-40C0-89A924CFF897F9D5_sc7JAM Paper A2 Colored Invitation Envelopes, 4 3/8" x 5 3/4", Assorted Colors, 150/Pack (956A2brogvy)~#|#~6F3A3927-F991-4684-ACE84A5599DE2D8A_sc7
Item: 24175052
Model: 956A2BROGVY
Price is $45.19
Unit of measure 150/Pack
Free delivery by Mon, Dec 15
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Quality Park Gummed Kraft Catalog Envelope, 12" x 15 1/2", Light Kraft, 250/Box (41965)~#|#~s0171331_sc7
Item: 377400
Model: QUA41965
No reviews yet
Price is $139.59
Unit of measure 250/Box
Free Next-Day eligible by tomorrow
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LUX 5 1/2 x 5 1/2 Square Envelopes, 50/Box, Holiday Red (8515-15-50)~#|#~m000081484_sc7
Item: 282115
Model: 8515-15-50
No reviews yet
Price is $14.69
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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JAM Paper #1 Coin Business Colored Envelopes, 2.25 x 3.5, Red Recycled, 25/Pack (356730632)~#|#~sp121512417_sc7JAM Paper #1 Coin Business Colored Envelopes, 2.25 x 3.5, Red Recycled, 25/Pack (356730632)~#|#~sp121512416_sc7
Item: 2103507
Model: 356730632
Price is $10.29
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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JAM Paper A7 Strathmore Invitation Envelopes, 5.25 x 7.25, Bright White Linen, Bulk 250/Box (191189H)~#|#~m007159173_sc7JAM Paper A7 Strathmore Invitation Envelopes, 5.25 x 7.25, Bright White Linen, Bulk 250/Box (191189H)~#|#~m007159172_sc7
Item: 1590130
Model: 191189H
No reviews yet
Price is $73.29
Unit of measure 250/Box
Free delivery by Mon, Dec 15
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JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, Bulk 250/Box (4231H)~#|#~sp121512322_sc7JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, Bulk 250/Box (4231H)~#|#~sp121512320_sc7
Item: 1589832
Model: 4231H
No reviews yet
Price is $131.19
Unit of measure 250/Box
Free delivery by Mon, Dec 15
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JAM Paper 11.5" x 11.5" Large Square Invitation Envelopes, White, 50/Pack (3992321I)~#|#~sp118566184_sc7JAM Paper 11.5" x 11.5" Large Square Invitation Envelopes, White, 50/Pack (3992321I)~#|#~sp118566189_sc7
Item: 1588470
Model: 3992321I
No reviews yet
Price is $72.39
Unit of measure 50/Pack
Free delivery by Mon, Dec 15
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LUX 70lb 4 1/8"x9 1/2" Square Flap #10 Envelopes, Bright White, 500/BX~#|#~m000211252_sc7
Item: 513630
Model: 4860-70W-500
Price is $107.59
Free delivery by Wed, Dec 17
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Quality Park Kraft #1 Envelope 2 1/4" x 3 1/2", Light Brown, 500/Box (QUA50160)~#|#~sp48117216_sc7Quality Park Kraft #1 Envelope 2 1/4" x 3 1/2", Light Brown, 500/Box (QUA50160)~#|#~6878D824-4573-4A6E-B61F23C1D87957B8_sc7
Item: 827898
Model: QUA50160
Price is $44.19
Unit of measure 500/Box
Free delivery by Fri, Dec 12
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JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Sunflower, 50 Pack, Yellow (EX8555-12-50)~#|#~sp228873560_sc7
Item: 24578550
Model: EX8555-12-50
No reviews yet
Price is $19.49
Unit of measure 50/Pack
Delivery by Mon, Dec 15
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JAM Paper A8 Strathmore Invitation Envelopes, 5.5 x 8.125, Bright White Wove, 25/Pack (STTW761)~#|#~m007159240_sc7JAM Paper A8 Strathmore Invitation Envelopes, 5.5 x 8.125, Bright White Wove, 25/Pack (STTW761)~#|#~m007159239_sc7
Item: 262526
Model: STTW761
No reviews yet
Price is $11.79
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", Blue, 250/Pack (5360-13-250)~#|#~sp228873252_sc7
Item: 24578290
Model: 5360-13-250
No reviews yet
Price is $76.19
Unit of measure 250/Pack
Free delivery by Mon, Dec 15
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Quality Park Survivor Tyvek Self Seal Catalog Envelopes, 10" x 13", White, 100/Carton (QUAR4610)~#|#~sp49507802_sc7
Item: 427808
Model: QUAR4610
Price is $198.89
Unit of measure 100/Carton
Free delivery by Wed, Dec 10
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LUX 7 x 7 Square Envelopes, 50/Box, Ruby Red (LUX-8545-18-50)~#|#~m003307880_sc7
Item: 1985257
Model: LUX-8545-18-50
Price is $45.69
Unit of measure 50/Box
Free delivery by Wed, Dec 17
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JAM Paper A2 Colored Invitation Envelopes, 4 3/8" x 5 3/4", Ultra Lime Green, Bulk 1000/Carton (WDBH610B)~#|#~m003905272_sc7JAM Paper A2 Colored Invitation Envelopes, 4 3/8" x 5 3/4", Ultra Lime Green, Bulk 1000/Carton (WDBH610B)~#|#~m003905271_sc7
Item: 261164
Model: WDBH610B
No reviews yet
Price is $227.99
Unit of measure 1000/Carton
Free delivery by Mon, Dec 15
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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.