Sponsored Products
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JAM Paper Square Envelopes, Peel & Press, Seafoam, 3 1/4 x 3 1/4, 500 Pack (8503-113-500)~#|#~sp228873566_sc7
Item: 24578562
Model: 8503-113-500
No reviews yet
Price is $95.32
Unit of measure 500/Pack
Free delivery by Mon, Dec 22
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JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Black Linen, 25/Pack (900906807)~#|#~m003904584_sc7JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Black Linen, 25/Pack (900906807)~#|#~m003904583_sc7
Item: 261572
Model: 900906807
Price is $31.49
Unit of measure 25/Pack
Delivery by Mon, Dec 22
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LUX A7 Foil Lined Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, White w/Black LUX Lining (FLWH4880-02-500)~#|#~m000082097_sc7
Item: 513812
Model: FLWH4880-02-500
No reviews yet
Price is $106.29
Free delivery by Wed, Dec 24
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LUX 8" x 8" Square Envelopes, Ruby Red, 1000/PK (LUX-8565-18-1M)~#|#~m003307875_sc7
Item: 1985004
Model: LUX-8565-18-1M
No reviews yet
Price is $401.28
Unit of measure 1000/Box
Free delivery by Wed, Dec 24
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JAM Paper A8 Translucent Vellum Invitation Envelopes, 5.5 x 8.125, Clear, 25/Pack (79462)~#|#~sp137085617_sc7
Item: 262116
Model: 79462
No reviews yet
Price is $30.79
Unit of measure 25/Pack
Delivery by Mon, Dec 22
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LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Silver w/Black LUX Lining (FLSL4872-02-50)~#|#~m004940484_sc7LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Silver w/Black LUX Lining (FLSL4872-02-50)~#|#~m005823925_sc7
Item: 282563
Model: FLSL4872-02-50
No reviews yet
Price is $32.59
Unit of measure 50/Pack
Delivery by Wed, Dec 24
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Vintage Plum (LUX-4870-104-50)~#|#~m000081836_sc7
Item: 282520
Model: LUX-4870-104-50
No reviews yet
Price is $16.19
Unit of measure 50/Pack
Delivery by Wed, Dec 24
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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 Wed, Dec 24
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JAM Paper A7 Booklet Envelope 5 1/4" x 7 1/4", Natural White Linen, 100/Pack (82011d)~#|#~9F7FC299-AA39-4551-BAB8D6D3A8B9807D_sc7JAM Paper A7 Booklet Envelope 5 1/4" x 7 1/4", Natural White Linen, 100/Pack (82011d)~#|#~859EC606-5031-49AB-A7A91FCBA40D7ECA_sc7
Item: 24604450
Model: 82011d
Price is $22.99
Unit of measure 100/Pack
Delivery by Mon, Dec 22
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 16.4375 x 20.125, Clear, 100/Pack (16.520.125CELLO)~#|#~m000068422_sc7
Item: 262909
Model: 16.520.125CELLO
Price is $159.39
Unit of measure 100/Pack
Free delivery by Mon, Dec 22
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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 22
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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 22
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LUX 28lbs. 11" x 17" Kraft Open End Flap Jumbo Envelopes, Brown Kraft, 500/BX~#|#~m000081444_sc7
Item: 385694
Model: 83478-500
No reviews yet
Price is $267.29
Unit of measure 500/Box
Free delivery by Wed, Dec 24
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LUX 6 x 6 Square Envelopes 50/Pack, Natural (8525-03-50)~#|#~sp14807839_sc7
Item: 24261194
Model: 8525-03-50
No reviews yet
Price is $15.39
Unit of measure 50/Pack
Delivery by Wed, Dec 24
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LUX Self Seal #10 Booklet Envelope 6" x 9", Natural, 1000/Pack (6025-01-1000)~#|#~sp14807416_sc7
Item: 24261223
Model: 6025-01-1000
No reviews yet
Price is $140.99
Unit of measure 1000/Pack
Free delivery by Wed, Dec 24
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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 22
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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 22
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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 Wed, Dec 24
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JAM Paper 6" x 9" Open End Catalog Colored Envelopes with Clasp Closure, Red Recycled, 10/Pack (87881B)~#|#~sp115352059_sc7JAM Paper 6" x 9" Open End Catalog Colored Envelopes with Clasp Closure, Red Recycled, 10/Pack (87881B)~#|#~sp115352058_sc7
Item: 38332
Model: 87881B
Price is $17.09
Unit of measure 10/Pack
Delivery by Mon, Dec 22
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LUX A2 (4 3/8 x 5 3/4) - Blush 50/Pack, Blush (LUX-4870-39-50)~#|#~sp5822112_sc7LUX A2 (4 3/8 x 5 3/4) - Blush 50/Pack, Blush (LUX-4870-39-50)~#|#~sp5874317_sc7
Item: 23996689
Model: LUX-4870-39-50
Price is $13.29
Unit of measure 50/Pack
Delivery by Wed, Dec 24
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JAM Paper Cellophane Envelope with Peel & Seal Closure, 8.9375 x 11.25, Green, 100/Pack (2783699)~#|#~m000969584_sc7
Item: 235501
Model: 2783699
No reviews yet
Price is $94.19
Unit of measure 100/Pack
Free delivery by Mon, Dec 22
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JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Black Linen, 25/Pack (V01214)~#|#~m003905219_sc7JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Black Linen, 25/Pack (V01214)~#|#~m003905218_sc7
Item: 261580
Model: V01214
No reviews yet
Price is $25.99
Unit of measure 25/Pack
Delivery by Mon, Dec 22
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JAM Paper Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Clear, 12/Pack(921B1CL)~#|#~sp89840001_sc7JAM Paper Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Clear, 12/Pack(921B1CL)~#|#~sp89840170_sc7
Item: 1227724
Model: 921B1CL
Price is $33.89
Unit of measure 12/Pack Price per unit $2.82/Envelope
Delivery by Mon, Dec 22
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JAM Paper 9 x 12 Booklet Colored Envelopes, Ultra Lime Green, 50/Pack (5156771i)~#|#~sp4211424_sc7JAM Paper 9 x 12 Booklet Colored Envelopes, Ultra Lime Green, 50/Pack (5156771i)~#|#~sp4211423_sc7
Item: 2478032
Model: 5156771I
No reviews yet
Price is $38.49
Unit of measure 50/Pack
Free delivery by Mon, Dec 22
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JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Red Recycled, 25/Pack (356730541)~#|#~m003757864_sc7JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Red Recycled, 25/Pack (356730541)~#|#~m003562843_sc7
Item: 2103489
Model: 356730541
No reviews yet
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, Dec 22
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LUX Self Seal Kraft Booklet Envelope, 6" x 9", Gray Kraft, 50/Pack (4820-GK-50)~#|#~sp14807469_sc7
Item: 24260992
Model: 4820-GK-50
Price is $15.69
Unit of measure 50/Pack
Delivery by Wed, Dec 24
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JAM Paper #10 Policy Business Colored Envelopes, 4.125 x 9.5, Blue Recycled, 50/Pack (15880I)~#|#~m003904550_sc7JAM Paper #10 Policy Business Colored Envelopes, 4.125 x 9.5, Blue Recycled, 50/Pack (15880I)~#|#~m003904549_sc7
Item: 1588700
Model: 15880I
No reviews yet
Price is $26.09
Unit of measure 50/Pack
Delivery by Mon, Dec 22
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LUX #1 Coin Envelopes (2 1/4 x 3 1/2) 1000/Box, Gold Metallic (1COGLD-1000)~#|#~m001149717_sc7
Item: 1028631
Model: 1COGLD-1000
No reviews yet
Price is $195.99
Free delivery by Wed, Dec 24
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Quality Park Self Seal Kraft Catalog Envelope, 9" x 12", Brown, 100/Box (QUA43563)~#|#~m002277550_sc7
Item: 2708508
Model: QUA43563
Price is $48.19
Unit of measure 100/Box
Free delivery by Tue, Dec 16
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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 22
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LUX Self Seal #10 Window Envelope, 4 1/2" x 9 1/2", White Wove, 500/Pack (10APW-WW-500)~#|#~sp5822112_sc7LUX Self Seal #10 Window Envelope, 4 1/2" x 9 1/2", White Wove, 500/Pack (10APW-WW-500)~#|#~sp5875295_sc7
Item: 23996358
Model: 10APW-WW-500
No reviews yet
Price is $196.99
Unit of measure 500/Pack
Free delivery by Wed, Dec 24
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JAM Paper Kraft A2 Invitation Envelopes, 4.375 x 5.75, Brown Kraft Paper Bag, Bulk 250/Box (LEKR600H)~#|#~sp112110412_sc7JAM Paper Kraft A2 Invitation Envelopes, 4.375 x 5.75, Brown Kraft Paper Bag, Bulk 250/Box (LEKR600H)~#|#~sp112110411_sc7
Item: 1589280
Model: LEKR600H
Price is $85.09
Unit of measure 250/Box
Free delivery by Mon, Dec 22
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LUX 9 x 12 Open End Envelopes 50/Pack, Clear Translucent (E4894-00-50)~#|#~sp14807567_sc7
Item: 24260271
Model: E4894-00-50
No reviews yet
Price is $54.89
Unit of measure 50/Pack
Free delivery by Wed, Dec 24
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JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Blue Recycled, 100/Pack (356730549B)~#|#~m003757871_sc7JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Blue Recycled, 100/Pack (356730549B)~#|#~m003562857_sc7
Item: 2103430
Model: 356730549B
No reviews yet
Price is $37.19
Unit of measure 100/Pack
Free delivery by Mon, Dec 22
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Quality Park Clasp Catalog Envelope, 9" x 12", White, 100/Box (38390)~#|#~s0055833_sc7Quality Park Clasp Catalog Envelope, 9" x 12", White, 100/Box (38390)~#|#~m000015892_sc7
Quality Park Clasp Catalog Envelope, 9" x 12", White, 100/Box (38390) is Out of stock
Item: 507862
Model: QUA38390
Price is $63.49
Unit of measure 100/Box
JAM Paper A7 Metallic Invitation Envelopes, 5.25 x 7.25, Stardream Opal, 50/Pack (GCST700I)~#|#~m002168963_sc7
JAM Paper A7 Metallic Invitation Envelopes, 5.25 x 7.25, Stardream Opal, 50/Pack (GCST700I) is Out of stock
Item: 1589153
Model: GCST700I
No reviews yet
Price is $46.19
Unit of measure 50/Pack
LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Quartz Metallic (5380-08-50)~#|#~21E69E6B-67C1-4CDB-BDEE1D60B1EB8306_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Quartz Metallic (5380-08-50)~#|#~ED7D13CC-8813-4FB0-90E95A042E40DE83_sc7
LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Quartz Metallic (5380-08-50) is Out of stock
Item: 282816
Model: 5380-08-50
No reviews yet
Price is $19.99
Unit of measure 50/Pack
JAM Paper A2 Invitation Envelope 4 3/8" x 5 3/4", Presidential Blue, 25/Pack (563913396)~#|#~533A953B-4BEF-42BE-9568CF0F89AAF5B8_sc7JAM Paper A2 Invitation Envelope 4 3/8" x 5 3/4", Presidential Blue, 25/Pack (563913396)~#|#~C0571050-9254-42C1-82F7C18BE1C63560_sc7
JAM Paper A2 Invitation Envelope 4 3/8" x 5 3/4", Presidential Blue, 25/Pack (563913396) is Out of stock
Item: 261128
Model: 563913396
No reviews yet
Price is $14.29
Unit of measure 25/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.