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LUX 80lbs. 4 1/4" x 6 1/4" A4 Photo, Invitation Envelopes W/Peel & Press, Navy Blue/Gold, 1000/BX~#|#~m004940483_sc7LUX 80lbs. 4 1/4" x 6 1/4" A4 Photo, Invitation Envelopes W/Peel & Press, Navy Blue/Gold, 1000/BX~#|#~m005823923_sc7
Item: 388384
Model: FLNV4872-04-100
No reviews yet
Price is $357.69
Unit of measure 1000/Box
Free delivery by Wed, Feb 18
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JAM Paper #3 Coin Business Envelopes, 2.5 x 4.25, Baby Pink, Bulk 500/Box (356730543H)~#|#~m003757866_sc7JAM Paper #3 Coin Business Envelopes, 2.5 x 4.25, Baby Pink, Bulk 500/Box (356730543H)~#|#~m003562850_sc7
Item: 2103462
Model: 356730543H
No reviews yet
Price is $127.99
Unit of measure 500/Box
Free delivery by Mon, Feb 16
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Lux Double Window Invoice Envelopes, Ruby Red, 4-1/8 x 9-1/8", 50/Pack~#|#~m002084693_sc7
Item: 1559044
Model: INVDW-18-50
Price is $36.89
Free delivery by Wed, Feb 18
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JAM Paper Self Seal Invitation Envelope, 7 1/2 x 7 1/2, Midnight Black, 250 Pack, Black (F-8555-B-250)~#|#~sp226423831_sc7JAM Paper Self Seal Invitation Envelope, 7 1/2 x 7 1/2, Midnight Black, 250 Pack, Black (F-8555-B-250)~#|#~sp226423830_sc7
Item: 24578520
Model: F-8555-B-250
No reviews yet
Price is $58.29
Unit of measure 250/Pack
Free delivery by Mon, Feb 16
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 1000/Box, Taupe Metallic (4872-M09-1M)~#|#~m004063752_sc7
Item: 2146008
Model: 4872-M09-1M
No reviews yet
Price is $212.43
Unit of measure 1000/Pack
Free delivery by Wed, Feb 18
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JAM Paper Self Seal Invitation Envelope, 7 1/2 x 7 1/2, Midnight Black, 50 Pack, Black (F-8555-B-50)~#|#~sp226423829_sc7JAM Paper Self Seal Invitation Envelope, 7 1/2 x 7 1/2, Midnight Black, 50 Pack, Black (F-8555-B-50)~#|#~sp226423828_sc7
Item: 24578519
Model: F-8555-B-50
No reviews yet
Price is $17.59
Unit of measure 50/Pack
Delivery by Mon, Feb 16
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LUX 9 x 12 Booklet Envelopes 50/Pack, Wisteria (LUX-4899-106-50)~#|#~sp14807512_sc7
Item: 24260230
Model: LUX-4899-106-50
No reviews yet
Price is $24.09
Unit of measure 50/Pack
Delivery by Wed, Feb 18
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LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 500/Box, White w/Black LUX Lining (FLWH4872-02-500)~#|#~m000081881_sc7
Item: 513836
Model: FLWH4872-02-500
No reviews yet
Price is $86.49
Free delivery by Wed, Feb 18
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JAM Paper 6 x 6 Square Translucent Vellum Invitation Envelopes, Platinum Silver, 25/Pack (PACV576)~#|#~m000068123_sc7
Item: 262268
Model: PACV576
No reviews yet
Price is $33.99
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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LUX Open End Envelopes 9" x 12", Ruby Red (LUX-1590-18-1M)~#|#~85B3B481-A5EE-4CDD-A4A88ED7EB219241_sc7
Item: 1277794
Model: LUX-1590-18-1M
No reviews yet
Price is $320.44
Unit of measure 1000/Box
Free delivery by Wed, Feb 18
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JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Black Linen, Bulk 250/Box (900906807H)~#|#~m003904584_sc7JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Black Linen, Bulk 250/Box (900906807H)~#|#~m003904583_sc7
Item: 1590024
Model: 900906807H
Price is $225.49
Unit of measure 250/Box
Free delivery by Mon, Feb 16
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JAM Paper 8.5 x 8.5 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, 25/Pack (1592157)~#|#~m006948424_sc7JAM Paper 8.5 x 8.5 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, 25/Pack (1592157)~#|#~m006948423_sc7
Item: 262292
Model: 1592157
No reviews yet
Price is $33.99
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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LUX 6 1/2 x 6 1/2 Square Envelopes, 250/Box, Midnight Black (F-8535-B-250)~#|#~m000081489_sc7
Item: 387528
Model: F-8535-B-250
No reviews yet
Price is $89.19
Unit of measure 250/Box
Free delivery by Wed, Feb 18
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LUX Double Window Invoice Envelopes (4 1/8 x 9 1/8) 1000/Box, Mandarin (INVDW-11-1M)~#|#~m004063892_sc7
Item: 2147432
Model: INVDW-11-1M
No reviews yet
Price is $215.49
Unit of measure 1000/Pack
Free delivery by Wed, Feb 18
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JAM Paper 4Bar A1 Parchment Invitation Envelopes, 3.625 x 5.125, Antique Gold Recycled, Bulk 250/Box (90090522H)~#|#~m004671992_sc7JAM Paper 4Bar A1 Parchment Invitation Envelopes, 3.625 x 5.125, Antique Gold Recycled, Bulk 250/Box (90090522H)~#|#~m004671991_sc7
Item: 1589383
Model: 90090522H
No reviews yet
Price is $67.29
Unit of measure 250/Box
Free delivery by Mon, Feb 16
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JAM Paper 6.25 x 7.875 Open End Foil Envelopes with Self-Adhesive Closure, Gold, 100/Pack (01323273B)~#|#~m000067467_sc7
Item: 260937
Model: 01323273B
No reviews yet
Price is $108.99
Unit of measure 100/Box
Free delivery by Mon, Feb 16
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LUX 5 x 5 Square Envelopes, 250/Box, Natural Linen (8505-NLI-250)~#|#~m000081492_sc7
Item: 514851
Model: 8505-NLI-250
No reviews yet
Price is $81.89
Free delivery by Wed, Feb 18
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, Crystal Metallic (5380-30-500)~#|#~m005902319_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, Crystal Metallic (5380-30-500)~#|#~m000082019_sc7
Item: 514893
Model: 5380-30-500
No reviews yet
Price is $150.63
Free delivery by Wed, Feb 18
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LUX 9" x 12" Open End Window Envelopes, Mandarin Orange (LUX-1590-11-250)~#|#~m001406669_sc7
Item: 1277760
Model: LUX-1590-11-250
No reviews yet
Price is $202.09
Unit of measure 250/Box
Free delivery by Wed, Feb 18
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 250/Box, Taupe Metallic (4872-M09-250)~#|#~m004063752_sc7
Item: 2146010
Model: 4872-M09-250
No reviews yet
Price is $79.32
Unit of measure 250/Pack
Free delivery by Wed, Feb 18
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LUX Square Envelopes, 8" x 8", Ruby Red, 250/Pack (LUX-8565-18-250)~#|#~m003307875_sc7
Item: 1985056
Model: LUX-8565-18-250
No reviews yet
Price is $133.88
Unit of measure 250/Box
Free delivery by Wed, Feb 18
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LUX A8 Foil Lined Invitation Envelopes (5 1/2 x 8 1/8) 1000/Box, White w/Gold LUX Lining (FLWH4885-041000)~#|#~m000082134_sc7
Item: 517344
Model: FLWH4885-041000
No reviews yet
Price is $263.49
Free delivery by Wed, Feb 18
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LUX A2 (4 3/8 x 5 3/4) 250/Box, Copper Metallic (5370-11-250)~#|#~m000081698_sc7
Item: 385155
Model: 5370-11-250
No reviews yet
Price is $106.49
Unit of measure 250/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, Silver, 100/Pack (01323303B)~#|#~m004671918_sc7JAM Paper 6.25 x 7.875 Open End Foil Envelopes with Self-Adhesive Closure, Silver, 100/Pack (01323303B)~#|#~m004671917_sc7
Item: 260938
Model: 01323303B
No reviews yet
Price is $108.99
Unit of measure 100/Box
Free delivery by Mon, Feb 16
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, White - 100% Recycled (4865-WPC-500)~#|#~m000161365_sc7
Item: 515393
Model: 4865-WPC-500
No reviews yet
Price is $91.49
Free delivery by Wed, Feb 18
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 1000/Box, Holiday Red (FE4275-15-1000)~#|#~m000081919_sc7
Item: 387831
Model: FE4275-15-1000
No reviews yet
Price is $122.89
Unit of measure 1000/Box
Free delivery by Wed, Feb 18
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, Copper Metallic (5365-11-500)~#|#~m000081698_sc7
Item: 515853
Model: 5365-11-500
No reviews yet
Price is $117.79
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 A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Limelight (LUX-4865-101-50)~#|#~m000081717_sc7
Item: 282380
Model: LUX-4865-101-50
No reviews yet
Price is $13.29
Unit of measure 50/Pack
Delivery by Wed, Feb 18
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LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes W/Glue Closure, Vista Metallic Blue~#|#~m000081324_sc7
Item: 281935
Model: 5360-29-50
No reviews yet
Price is $31.17
Unit of measure 50/Pack
Delivery by Wed, Feb 18
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LUX A2 (4 3/8 x 5 3/4) 250/Box, Taupe Metallic (5370-M09-250)~#|#~m004063752_sc7
Item: 2146511
Model: 5370-M09-250
No reviews yet
Price is $63.69
Unit of measure 250/Pack
Free delivery by Wed, Feb 18
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JAM Paper #10 Policy Business Envelopes, 4.125 x 9.5, Black Linen, Bulk 1000/Carton (V01218B)~#|#~m003905223_sc7JAM Paper #10 Policy Business Envelopes, 4.125 x 9.5, Black Linen, Bulk 1000/Carton (V01218B)~#|#~m003905222_sc7
Item: 261616
Model: V01218B
No reviews yet
Price is $362.99
Unit of measure 1000/Carton
Free delivery by Mon, Feb 16
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LUX 80lbs. 5 3/4" x 8 3/4" 100% Recycled A9 Invitation Envelopes W/Glue, Natural, 500/BX~#|#~m000082170_sc7
Item: 384929
Model: 4895-NPC-500
No reviews yet
Price is $158.89
Unit of measure 500/Box
Free delivery by Wed, Feb 18
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LUX 80lbs. 5 1/4" x 7 1/4" A7 Invitation Envelopes W/Peel & Press, Black/Red, 1000/BX~#|#~m000082008_sc7
Item: 388343
Model: FLBK4880-01-100
No reviews yet
Price is $270.81
Unit of measure 1000/Box
Free delivery by Wed, Feb 18
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LUX 5 x 5 Square Envelopes 50/Pack, Sunflower (LUX-8505-12-50)~#|#~sp5822112_sc7LUX 5 x 5 Square Envelopes 50/Pack, Sunflower (LUX-8505-12-50)~#|#~sp5874313_sc7
Item: 23996114
Model: LUX-8505-12-50
No reviews yet
Price is $27.19
Unit of measure 50/Pack
Delivery by Wed, Feb 18
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Pack, Brilliant White - 100% Cotton (4865-SBW-500)~#|#~sp14807719_sc7
Item: 24260528
Model: 4865-SBW-500
No reviews yet
Price is $92.89
Unit of measure 500/Pack
Free delivery by Wed, Feb 18
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LUX A7 Gatefold Invitation (5 x 7) 100/Pack, Midnight Black (LUXA7GF-B-100)~#|#~sp14807892_sc7
Item: 24260639
Model: LUXA7GF-B-100
No reviews yet
Price is $62.69
Unit of measure 100/Pack
Free delivery by Wed, Feb 18
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LUX 9 x 12 Booklet Envelopes 500/Pack, Smoke (EX4899-22-500)~#|#~sp14807524_sc7
Item: 24261233
Model: EX4899-22-500
No reviews yet
Price is $142.49
Unit of measure 500/Pack
Free delivery by Wed, Feb 18
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 250/Box, Magenta (EX4875-10-250)~#|#~m000081928_sc7
Item: 386507
Model: EX4875-10-250
No reviews yet
Price is $74.49
Unit of measure 250/Box
Free delivery by Wed, Feb 18
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JAM Paper 4Bar A1 Translucent Vellum Invitation Envelopes, 3.625 x 5.125, Gold, 50/Pack (1591606I)~#|#~m003904758_sc7JAM Paper 4Bar A1 Translucent Vellum Invitation Envelopes, 3.625 x 5.125, Gold, 50/Pack (1591606I)~#|#~m003904757_sc7
Item: 1588801
Model: 1591606I
No reviews yet
Price is $58.99
Unit of measure 50/Pack
Free delivery by Mon, Feb 16
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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.