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Quality Park Gummed Recycled Clasp Envelopes, 10" x 13", Brown, 100/Bx~#|#~s0171283_sc7
Quality Park Clasp Nonstandard Kraft Catalog Envelope, 10" x 13", Light Kraft, 100/Box (QUA38197) is New at Staples
Item: QUA38197
Model: QUA38197
Price is $114.67
Unit of measure Box
Free delivery by Wed, Feb 11
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JAM Paper 6.5 x 6.5 Square Metallic Invitation Envelopes, Stardream Gold, 25/Pack (GCST508)~#|#~m003905124_sc7JAM Paper 6.5 x 6.5 Square Metallic Invitation Envelopes, Stardream Gold, 25/Pack (GCST508)~#|#~m003905123_sc7
Item: 261976
Model: GCST508
No reviews yet
Price is $38.29
Unit of measure 25/Pack
Free delivery by Mon, Feb 16
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JAM Paper 4Bar A1 Translucent Vellum Envelopes, 3.625 x 5.125, Platinum Silver, 25/Pack (1591590)~#|#~m004671927_sc7JAM Paper 4Bar A1 Translucent Vellum Envelopes, 3.625 x 5.125, Platinum Silver, 25/Pack (1591590)~#|#~m004671926_sc7
Item: 262262
Model: 1591590
No reviews yet
Price is $36.49
Unit of measure 25/Pack
Free delivery by Mon, Feb 16
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Lilac (SH4265-05-50)~#|#~m000081716_sc7
Item: 282379
Model: 910003121/06827
No reviews yet
Price is $21.49
Unit of measure 50/Pack
Delivery by Wed, Feb 18
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JAM Paper 6.5 x 6.5 Kraft Square Invitation Envelopes, Brown Kraft Paper Bag, 25/Pack (63131150)~#|#~m004542986_sc7JAM Paper 6.5 x 6.5 Kraft Square Invitation Envelopes, Brown Kraft Paper Bag, 25/Pack (63131150)~#|#~m004542985_sc7
Item: 2329331
Model: 63131150
No reviews yet
Price is $40.89
Unit of measure 25/Pack
Free delivery by Mon, Feb 16
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JAM Paper 6.25 x 7.875 Open End Catalog Foil Envelopes with Self-Adhesive Closure, Blue Santa, 25/Pack (1333327)~#|#~m000141498_sc7
Item: 362865
Model: 1333327
No reviews yet
Price is $33.99
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Quartz Metallic (5370-08-50)~#|#~1FD828E4-721C-4D31-899ED258812C0731_sc7LUX A2 (4 3/8 x 5 3/4) 50/Box, Quartz Metallic (5370-08-50)~#|#~9921AF4E-F2B9-4A4C-B7E9317EB54BF27D_sc7
Item: 282498
Model: 5370-08-50
Price is $19.49
Unit of measure 50/Pack
Delivery by Wed, Feb 18
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LUX 60lbs. 5 3/4" x 8 3/4" A9 Invitation Envelopes W/Glue, Holiday Red, 500/BX~#|#~m000082161_sc7
Item: 383937
Model: 14257-500
No reviews yet
Price is $93.09
Unit of measure 500/Box
Free delivery by Wed, Feb 18
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LUX Square Envelopes, 8-1/2" x 8-1/2", Silver Metallic, 500ct (8575-06-500)~#|#~m003307876_sc7
Item: 1985047
Model: 8575-06-500
No reviews yet
Price is $217.14
Unit of measure 500/Box
Free delivery by Wed, Feb 18
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LUX 6 1/2 x 6 1/2 Square Envelopes, 500/Box, Natural (8535-03-500)~#|#~m000081579_sc7
Item: 385766
Model: 8535-03-500
No reviews yet
Price is $91.89
Unit of measure 500/Box
Free delivery by Wed, Feb 18
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LUX 10 x 13 Open End Envelopes 50/Pack, Seafoam (LUX-4897-113-50)~#|#~sp14807577_sc7
Item: 24261045
Model: LUX-4897-113-50
Price is $40.19
Unit of measure 50/Pack
Free delivery by Wed, Feb 18
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JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Malachite Deep Green, 25/Pack (V018258)~#|#~m000068028_sc7
Item: 262007
Model: V018258
No reviews yet
Price is $26.29
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Presidential Blue, 25/Pack (563916919)~#|#~m003000923_sc7JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Presidential Blue, 25/Pack (563916919)~#|#~m003000922_sc7
Item: 261137
Model: 563916919
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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JAM Paper A8 Metallic Invitation Envelopes, 5.5 x 8.125, Stardream Gold, 25/Pack (V018295)~#|#~m003905253_sc7JAM Paper A8 Metallic Invitation Envelopes, 5.5 x 8.125, Stardream Gold, 25/Pack (V018295)~#|#~m003905252_sc7
Item: 261969
Model: V018295
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, Teal, 25/Pack (124823544)~#|#~m003904968_sc7JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, Teal, 25/Pack (124823544)~#|#~m003904967_sc7
Item: 363871
Model: 124823544
No reviews yet
Price is $14.29
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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LUX 80lbs. 4 1/8" x 9 1/2" Metallic Square Flap Envelopes, Anthracite Metallic Gray, 1000/BX~#|#~m004940420_sc7LUX 80lbs. 4 1/8" x 9 1/2" Metallic Square Flap Envelopes, Anthracite Metallic Gray, 1000/BX~#|#~m005823900_sc7
Item: 385004
Model: 5360-15-1000
No reviews yet
Price is $270.81
Unit of measure 1000/Box
Free delivery by Wed, Feb 18
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 50/Pack, Candy Pink (LUX-4885-14-50)~#|#~sp12274947_sc7LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 50/Pack, Candy Pink (LUX-4885-14-50)~#|#~sp12275041_sc7
Item: 24161732
Model: LUX-4885-14-50
No reviews yet
Price is $18.99
Unit of measure 50/Pack
Delivery by Wed, Feb 18
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LUX 80lbs. 4 3/8" x 5 3/4" A2 RSVP, Invitation Envelopes W/Peel & Press, Vintage Plum Purple, 250BX~#|#~m000081836_sc7
Item: 388567
Model: LUX-4870-104-25
No reviews yet
Price is $71.76
Unit of measure 250/Box
Free delivery by Wed, Feb 18
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, Avocado (EX4865-27-500)~#|#~m000081685_sc7
Item: 514462
Model: EX4865-27-500
No reviews yet
Price is $104.39
Free delivery by Wed, Feb 18
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LUX 60lbs. 5 3/4" x 8 3/4" A9 Invitation Envelopes W/Peel & Press, White/Black LUX, 250/BX~#|#~m000082189_sc7
Item: 387930
Model: FLWH4895-02-250
No reviews yet
Price is $100.89
Unit of measure 250/Box
Free delivery by Wed, Feb 18
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JAM Paper 4Bar A1 Parchment Invitation Envelopes, 3.625 x 5.125, White Recycled, 50/Pack (900926656I)~#|#~m002168862_sc7
Item: 1588631
Model: 900926656I
Price is $18.89
Unit of measure 50/Pack
Delivery by Mon, Feb 16
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LUX 4 x 4 Square Envelopes, 250/Box, 70lb. Bright White (8504-AO-250)~#|#~m000081468_sc7
Item: 515036
Model: 8504-AO-250
No reviews yet
Price is $66.44
Free delivery by Wed, Feb 18
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LUX A2 (4 3/8 x 5 3/4) - Blush 500/Pack, Blush (LUX-4870-39-500)~#|#~sp5822112_sc7LUX A2 (4 3/8 x 5 3/4) - Blush 500/Pack, Blush (LUX-4870-39-500)~#|#~sp5874317_sc7
Item: 23996648
Model: LUX-4870-39-500
No reviews yet
Price is $113.15
Unit of measure 500/Pack
Free delivery by Wed, Feb 18
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LUX A8 Foil Lined Invitation Envelopes (5 1/2 x 8 1/8) 50/Box, Natural w/Gold LUX Lining (FLNT4885-04-50)~#|#~m000082131_sc7
Item: 282885
Model: FLNT4885-04-50
No reviews yet
Price is $46.49
Unit of measure 50/Pack
Free delivery by Wed, Feb 18
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LUX 9 x 12 Booklet Envelopes 50/Pack, Crystal Clear (CC9X12-50)~#|#~sp14807543_sc7
Item: 24261196
Model: CC9X12-50
No reviews yet
Price is $44.39
Unit of measure 50/Pack
Free delivery by Wed, Feb 18
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LUX Open End Envelopes 9" x 12", Pool Blue~#|#~m001406667_sc7
Item: 1277800
Model: LUX-1590-102-1M
No reviews yet
Price is $489.89
Unit of measure 1000/Box
Free delivery by Wed, Feb 18
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LUX 5 x 5 Square Envelopes, 1000/Box, Ruby Red (8505-18-1000)~#|#~m000081533_sc7
Item: 515023
Model: 8505-18-1000
No reviews yet
Price is $232.48
Free delivery by Wed, Feb 18
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Natural (5880-01-250)~#|#~m000082050_sc7
Item: 515376
Model: 5880-01-250
Price is $50.39
Free delivery by Wed, Feb 18
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JAM Paper Cellophane Envelope with Peel & Seal Closure, A2, 4.625 x 5.875, Clear, 100/Pack (A2CELLO)~#|#~m003574763_sc7
Item: 262893
Model: A2CELLO
Price is $33.99
Unit of measure 100/Pack
Delivery by Mon, Feb 16
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Rose Quartz Metallic (5375-04-50)~#|#~m000081732_sc7
Item: 282655
Model: 5375-04-50
No reviews yet
Price is $24.99
Unit of measure 50/Pack
Delivery by Wed, Feb 18
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 5.4375 x 8.625, Aqua Blue, 100/Pack (2784901)~#|#~m000969568_sc7
Item: 235425
Model: 2784901
No reviews yet
Price is $59.99
Unit of measure 100/Pack
Free delivery by Mon, Feb 16
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LUX 6 1/2 x 6 1/2 Square Envelopes, 500/Box, Gold Metallic (8535-07-500)~#|#~m000081570_sc7
Item: 385780
Model: 8535-07-500
No reviews yet
Price is $197.07
Unit of measure 500/Box
Free delivery by Wed, Feb 18
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JAM Paper 6.25 x 7.875 Open End Foil Envelopes with Self-Adhesive Closure, Red, 25/Pack (1323272)~#|#~m000067470_sc7
Item: 260889
Model: 1323272
No reviews yet
Price is $37.39
Unit of measure 25/Pack
Free delivery by Mon, Feb 16
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JAM Paper Open End Catalog Envelopes, 9" x 12", White, 100/Pack (212816044f)~#|#~sp95009160_sc7JAM Paper Open End Catalog Envelopes, 9" x 12", White, 100/Pack (212816044f)~#|#~sp95008983_sc7
Item: 2633005
Model: 212816044F
No reviews yet
Price is $101.49
Unit of measure 100/Pack
Free delivery by Mon, Feb 16
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JAM Paper Self Seal Invitation Envelope, 3 1/4 x 3 1/4 , Smoke,  50 Pack, Gray (8503-22-50)~#|#~sp226423823_sc7JAM Paper Self Seal Invitation Envelope, 3 1/4 x 3 1/4 , Smoke,  50 Pack, Gray (8503-22-50)~#|#~sp226423822_sc7
Item: 24578484
Model: 8503-22-50
No reviews yet
Price is $15.79
Unit of measure 50/Pack
Delivery by Mon, Feb 16
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80 lb 5 3/4" x 5 3/4" Peel & Press Square Linen Envelopes, White, 250/Box~#|#~m001149702_sc7
Item: 1028576
Model: 8520-WLI-250
No reviews yet
Price is $108.79
Free delivery by Wed, Feb 18
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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.