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JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, Black Linen, 25/Pack (64345)~#|#~m003904604_sc7JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, Black Linen, 25/Pack (64345)~#|#~m003904603_sc7
Item: 261568
Model: 64345
Price is $14.29
Unit of measure 25/Pack
Delivery by Mon, Dec 29
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JAM Paper A10 Kraft Invitation Envelopes, 6 x 9.5, Brown Kraft Paper Bag, 50/Pack (LEKR850I)~#|#~m004672455_sc7JAM Paper A10 Kraft Invitation Envelopes, 6 x 9.5, Brown Kraft Paper Bag, 50/Pack (LEKR850I)~#|#~m004672454_sc7
Item: 1588754
Model: LEKR850I
No reviews yet
Price is $31.29
Unit of measure 50/Pack
Delivery by Mon, Dec 29
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LUX 7 1/2 x 10 1/2 Booklet Envelopes 50/Pack, 24lb. Bright White (12252-50)~#|#~sp14807339_sc7
Item: 24261328
Model: 12252-50
No reviews yet
Price is $17.29
Unit of measure 50/Pack
Delivery by Fri, Jan 02
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JAM Paper #3 Coin Business Envelopes, 2.5 x 4.25, Baby Pink, 25/Pack (356730543)~#|#~m003757866_sc7JAM Paper #3 Coin Business Envelopes, 2.5 x 4.25, Baby Pink, 25/Pack (356730543)~#|#~m003562850_sc7
Item: 2103482
Model: 356730543
No reviews yet
Price is $9.99
Unit of measure 25/Pack
Delivery by Mon, Dec 29
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JAM Paper #10 Policy Business Strathmore Envelopes, 4.125 x 9.5, Natural White Wove, 50/Pack (191249I)~#|#~m007063366_sc7JAM Paper #10 Policy Business Strathmore Envelopes, 4.125 x 9.5, Natural White Wove, 50/Pack (191249I)~#|#~m007063365_sc7
Item: 1588541
Model: 191249I
No reviews yet
Price is $26.09
Unit of measure 50/Pack
Delivery by Mon, Dec 29
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JAM Paper® Plastic Envelopes with Button and String Tie Closure, Letter Booklet, 9.75 x 13, Lime Green, 108/Pack (218B1LIB)~#|#~m004858019_sc7JAM Paper® Plastic Envelopes with Button and String Tie Closure, Letter Booklet, 9.75 x 13, Lime Green, 108/Pack (218B1LIB)~#|#~m004857853_sc7
Item: 263057
Model: 218B1LIB
No reviews yet
Price is $244.99
Unit of measure 108/Box Price per unit $2.27/Envelope
Free delivery by Mon, Dec 29
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JAM Paper 5.5 x 5.5 Square Invitation Envelopes, White, 25/Pack (28415)~#|#~sp126919081_sc7JAM Paper 5.5 x 5.5 Square Invitation Envelopes, White, 25/Pack (28415)~#|#~sp126919080_sc7
Item: 261298
Model: 28415
No reviews yet
Price is $24.59
Unit of measure 25/Pack
Delivery by Mon, Dec 29
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 250/Box, Quartz Metallic (5365-08-250)~#|#~1D521796-EDB3-4EE0-9B854A228DA4CC19_sc7LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 250/Box, Quartz Metallic (5365-08-250)~#|#~A2F6EA33-59B7-4B7C-9E069FD153B2B86C_sc7
Item: 385068
Model: 5365-08-250
No reviews yet
Price is $68.69
Unit of measure 250/Box
Free delivery by Fri, Jan 02
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JAM Paper 2.375 x 2.375 Mini Square Envelopes, White, 25/Pack (203642)~#|#~sp121512130_sc7JAM Paper 2.375 x 2.375 Mini Square Envelopes, White, 25/Pack (203642)~#|#~sp121512129_sc7
Item: 262661
Model: 203642
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, Dec 29
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LUX 9 x 12 Open End Envelopes, 500/Box, Gold Metallic (4894-07-500)~#|#~m001149712_sc7
Item: 1028616
Model: 4894-07-500
No reviews yet
Price is $353.89
Free delivery by Fri, Jan 02
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LUX Moistenable Glue #10 Window Envelope, 4 1/2" x 9 1/2", Electric Yellow, 50/Pack (4261-20-50)~#|#~m000081284_sc7
Item: 281895
Model: EX7716-12-50
Price is $72.99
Unit of measure 50/Pack
Free delivery by Fri, Jan 02
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Aqua Blue, 25/Pack (1523976)~#|#~m002934481_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Aqua Blue, 25/Pack (1523976)~#|#~m003904752_sc7
Item: 364291
Model: 1523976
No reviews yet
Price is $20.49
Unit of measure 25/Pack
Delivery by Mon, Dec 29
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JAM Paper 10 x 13 Booklet Strathmore Envelopes, Natural White Wove, 25/Pack (900797158)~#|#~m005744876_sc7JAM Paper 10 x 13 Booklet Strathmore Envelopes, Natural White Wove, 25/Pack (900797158)~#|#~m007159216_sc7
Item: 262557
Model: 900797158
No reviews yet
Price is $25.99
Unit of measure 25/Pack
Delivery by Mon, Dec 29
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JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Orange Recycled, 50/Pack (95666I)~#|#~m003904690_sc7JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Orange Recycled, 50/Pack (95666I)~#|#~m003904689_sc7
Item: 1589518
Model: 95666I
No reviews yet
Price is $20.49
Unit of measure 50/Pack
Delivery by Mon, Dec 29
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JAM Paper 6 x 6 Square Invitation Envelopes, White, 50/Pack (28416I)~#|#~sp126919273_sc7JAM Paper 6 x 6 Square Invitation Envelopes, White, 50/Pack (28416I)~#|#~sp126919272_sc7
Item: 1588509
Model: 28416I
Price is $44.19
Unit of measure 50/Pack
Free delivery by Mon, Dec 29
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JAM Paper #3 Coin Business Envelopes, 2.5 x 4.25, Black, 50/Pack (356730544i)~#|#~sp4808491_sc7JAM Paper #3 Coin Business Envelopes, 2.5 x 4.25, Black, 50/Pack (356730544i)~#|#~sp4808490_sc7
Item: 2633173
Model: 356730544I
No reviews yet
Price is $19.39
Unit of measure 50/Pack
Delivery by Mon, Dec 29
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JAM Paper 3Drug Translucent Vellum Mini Envelopes, 2.3125 x 3.625, Clear, 25/Pack (LECV900)~#|#~sp126919166_sc7JAM Paper 3Drug Translucent Vellum Mini Envelopes, 2.3125 x 3.625, Clear, 25/Pack (LECV900)~#|#~sp126919165_sc7
Item: 262110
Model: LECV900
Price is $17.09
Unit of measure 25/Pack
Delivery by Mon, Dec 29
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JAM Paper Self Seal #1 Coin Business Envelopes, 2 1/4" x 3 1/2", White, 100/Pack (356838552D)~#|#~6E6034D0-FFF9-43C6-805BFA77B6CDA080_sc7
Item: 24557931
Model: 356838552D
No reviews yet
Price is $31.69
Unit of measure 100/Pack
Delivery by Mon, Dec 29
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LUX 7 1/4" x 5 1/4" 70lbs. Postage Saver Envelopes W/Peel & Press, Bright White, 50/Pack~#|#~m000081518_sc7LUX 7 1/4" x 5 1/4" 70lbs. Postage Saver Envelopes W/Peel & Press, Bright White, 50/Pack~#|#~43964C72-4044-4051-8F8454F3C85A2194_sc7
Item: 282149
Model: 55PS-W-50
No reviews yet
Price is $22.59
Unit of measure 50/Pack
Delivery by Fri, Jan 02
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LUX 70lb 4 1/8"x9 1/2" Square Flap #10 Envelopes, Grocery Bag Brown, 500/BX~#|#~m004940396_sc7LUX 70lb 4 1/8"x9 1/2" Square Flap #10 Envelopes, Grocery Bag Brown, 500/BX~#|#~m005823987_sc7
Item: 516499
Model: 4860-GB-500
No reviews yet
Price is $111.19
Free delivery by Fri, Jan 02
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JAM Paper 9 x 9 Square Invitation Envelopes, White, 25/Pack (4232)~#|#~sp115352016_sc7JAM Paper 9 x 9 Square Invitation Envelopes, White, 25/Pack (4232)~#|#~sp115352015_sc7
Item: 263923
Model: 4232
Price is $25.89
Unit of measure 25/Pack
Delivery by Mon, Dec 29
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JAM Paper 6" x 9" Open End Catalog Colored Envelopes, Red Recycled, 10/Pack (V0128139B)~#|#~m002934044_sc7JAM Paper 6" x 9" Open End Catalog Colored Envelopes, Red Recycled, 10/Pack (V0128139B)~#|#~m002934043_sc7
Item: 38343
Model: V0128139B
Price is $13.89
Unit of measure 10/Pack
Delivery by Mon, Dec 29
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JAM Paper® Plastic Envelopes with Button and String Tie Closure, Index Booklet, 5.5 x 7.5, Yellow, 12/Pack (920B1YE)~#|#~m005744953_sc7JAM Paper® Plastic Envelopes with Button and String Tie Closure, Index Booklet, 5.5 x 7.5, Yellow, 12/Pack (920B1YE)~#|#~m005744952_sc7
Item: 262985
Model: 920B1YE
No reviews yet
Price is $26.89
Unit of measure 12/Pack Price per unit $2.24/Envelope
Delivery by Mon, Dec 29
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JAM Paper 9 x 12 Booklet Envelopes, Baby Blue, 25/Pack (21515987)~#|#~sp134498434_sc7JAM Paper 9 x 12 Booklet Envelopes, Baby Blue, 25/Pack (21515987)~#|#~sp134498432_sc7
Item: 263624
Model: 21515987
No reviews yet
Price is $24.19
Unit of measure 25/Pack
Delivery by Mon, Dec 29
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Amethyst Metallic (5365-17-50)~#|#~m000081682_sc7
Item: 282343
Model: 5365-17-50
No reviews yet
Price is $14.69
Unit of measure 50/Pack
Delivery by Fri, Jan 02
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LUX A6 Invitation Envelopes, 4.75" x 6.5", Natural Linen, 250/Box (4875-NLI-250)~#|#~m000161355_sc7
Item: 384781
Model: 4875-NLI-250
No reviews yet
Price is $65.09
Unit of measure 250/Box
Free delivery by Fri, Jan 02
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JAM Paper Self Seal Business Envelope, 4 1/8 x 9 1/2, Blush Pink, 50 Pack (4860-114-50)~#|#~sp226423808_sc7JAM Paper Self Seal Business Envelope, 4 1/8 x 9 1/2, Blush Pink, 50 Pack (4860-114-50)~#|#~sp226423807_sc7
Item: 24578399
Model: 4860-114-50
No reviews yet
Price is $16.59
Unit of measure 50/Pack
Delivery by Mon, Dec 29
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LUX  4 x 6 3/8 Kraft Open End - 32lb. Brown Kraft 250/Pack, 32lb. Brown Kraft (WS-5504-250)~#|#~sp5822112_sc7LUX  4 x 6 3/8 Kraft Open End - 32lb. Brown Kraft 250/Pack, 32lb. Brown Kraft (WS-5504-250)~#|#~sp5874368_sc7
Item: 23996372
Model: WS-5504-250
No reviews yet
Price is $74.99
Unit of measure 250/Pack
Free delivery by Fri, Jan 02
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JAM Paper 6 x 6 Square Envelopes, Peel & Press, Ruby Red, 50/Pack (8525-18-50)~#|#~sp228873511_sc7JAM Paper 6 x 6 Square Envelopes, Peel & Press, Ruby Red, 50/Pack (8525-18-50)~#|#~sp228873510_sc7
Item: 24578455
Model: 8525-18-50
No reviews yet
Price is $19.99
Unit of measure 50/Pack
Delivery by Mon, Dec 29
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JAM Paper #10 Policy Business Colored Envelopes, 4 1/8" x 9 1/2", Blue Recycled, 25/Pack (15880)~#|#~m003904550_sc7JAM Paper #10 Policy Business Colored Envelopes, 4 1/8" x 9 1/2", Blue Recycled, 25/Pack (15880)~#|#~m003904549_sc7
Item: 263915
Model: 15880
No reviews yet
Price is $16.69
Unit of measure 25/Pack
Delivery by Mon, Dec 29
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Magenta (EX4870-10-50)~#|#~m000081799_sc7
LUX A2 (4 3/8 x 5 3/4) 50/Box, Magenta (EX4870-10-50) is Out of stock
Item: 282473
Model: EX4870-10-50
No reviews yet
Price is $21.49
Unit of measure 50/Pack
JAM Paper A8 Invitation Envelope 5 1/2" x 8 1/8", Presidential Blue, 25/Pack (563916908)~#|#~B5E82D2B-ABF0-4204-8BAB6C6D7ED4289D_sc7JAM Paper A8 Invitation Envelope 5 1/2" x 8 1/8", Presidential Blue, 25/Pack (563916908)~#|#~EA273D2E-0C89-411B-9256B7B47C6FB7ED_sc7
JAM Paper A8 Invitation Envelope 5 1/2" x 8 1/8", Presidential Blue, 25/Pack (563916908) is Out of stock
Item: 261131
Model: 563916908
No reviews yet
Price is $11.99
Unit of measure 25/Pack
JAM Paper 9 x 12 Booklet Colored Envelopes, Ultra Fuchsia Pink, 50/Pack (5156770i)~#|#~sp4211422_sc7JAM Paper 9 x 12 Booklet Colored Envelopes, Ultra Fuchsia Pink, 50/Pack (5156770i)~#|#~sp4211421_sc7
JAM Paper 9 x 12 Booklet Colored Envelopes, Ultra Fuchsia Pink, 50/Pack (5156770i) is Out of stock
Item: 2478035
Model: 5156770I
No reviews yet
Price is $34.09
Unit of measure 50/Pack
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.