LUX 4 1/8" x 9 1/2" #10 70lbs. Open End Envelopes, Smoke Gray, 50/Pack~#|#~m000081283_sc7
Item: 281894
Model: EX7716-22-50
No reviews yet
Price is $30.49
Unit of measure 50/Pack
Delivery by Fri, May 08
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JAM Paper 8.5 x 8.5 Square Translucent Vellum Invitation Envelopes, Gold, 50/Pack (PACV597I)~#|#~m003905181_sc7JAM Paper 8.5 x 8.5 Square Translucent Vellum Invitation Envelopes, Gold, 50/Pack (PACV597I)~#|#~m003904787_sc7
Item: 1588392
Model: PACV597I
No reviews yet
Price is $76.89
Unit of measure 50/Pack
Free delivery by Wed, May 06
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JAM Paper #11 Policy Business Envelopes, 4.5 x 10.375, White, Bulk 500/Box (1623187H)~#|#~sp123308118_sc7JAM Paper #11 Policy Business Envelopes, 4.5 x 10.375, White, Bulk 500/Box (1623187H)~#|#~sp123308117_sc7
Item: 1589896
Model: 1623187H
No reviews yet
Price is $227.99
Unit of measure 500/Box
Free delivery by Wed, May 06
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 500/Pack, Blush (LUX-4875-39-500)~#|#~sp5822112_sc7LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 500/Pack, Blush (LUX-4875-39-500)~#|#~sp5874329_sc7
Item: 23996776
Model: LUX-4875-39-500
No reviews yet
Price is $109.59
Unit of measure 500/Pack
Free delivery by Fri, May 08
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Black Linen (4865-BLI-50)~#|#~m000081688_sc7
Item: 282350
Model: 4865-BLI-50
No reviews yet
Price is $12.69
Unit of measure 50/Pack
Delivery by Fri, May 08
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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 Wed, May 06
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LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 250/Box, Silver w/Black LUX Lining (FLSL4872-02-250)~#|#~m004940484_sc7LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 250/Box, Silver w/Black LUX Lining (FLSL4872-02-250)~#|#~m005823925_sc7
Item: 387897
Model: FLSL4872-02-250
Price is $111.09
Unit of measure 250/Box
Free delivery by Fri, May 08
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JAM Paper 5 x 5 Square Invitation Envelopes, Black Linen, 25/Pack (V01209)~#|#~m003905209_sc7JAM Paper 5 x 5 Square Invitation Envelopes, Black Linen, 25/Pack (V01209)~#|#~m003905208_sc7
Item: 261574
Model: V01209
No reviews yet
Price is $25.99
Unit of measure 25/Pack
Delivery by Wed, May 06
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JAM Paper 6 x 6 Square Invitation Envelopes, Black Linen, 25/Pack (V01212)~#|#~m003905215_sc7JAM Paper 6 x 6 Square Invitation Envelopes, Black Linen, 25/Pack (V01212)~#|#~m003905214_sc7
Item: 261576
Model: V01212
No reviews yet
Price is $29.89
Unit of measure 25/Pack
Delivery by Wed, May 06
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Over 30
Quality Park™ Redi-Strip™ Catalog Envelope, White, 11 1/2 x 14 1/2, 100/Box (44834)~#|#~m002273853_sc7Quality Park™ Redi-Strip™ Catalog Envelope, White, 11 1/2 x 14 1/2, 100/Box (44834)~#|#~sp4614056_sc7
Item: QUA44834
Model: QUA44834
No reviews yet
Price is $130.39
Unit of measure Box
Free delivery by Fri, May 01
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 1000/Box, Magenta (EX4880-10-1000)~#|#~m000082045_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 1000/Box, Magenta (EX4880-10-1000)~#|#~m001623008_sc7
Item: 514307
Model: EX4880-10-1000
No reviews yet
Price is $188.59
Free delivery by Fri, May 08
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Over 30
LUX 5 x 5 Square Envelopes, 250/Box, Midnight Black (F-8505-B-250)~#|#~m000081489_sc7
Item: 387525
Model: F-8505-B-250
No reviews yet
Price is $73.89
Unit of measure 250/Box
Free delivery by Fri, May 08
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Over 30
LUX 5 x 5 Square Envelopes, 500/Box, Midnight Black (F-8505-B-500)~#|#~m000081489_sc7
Item: 514097
Model: F-8505-B-500
No reviews yet
Price is $95.89
Free delivery by Fri, May 08
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JAM Paper 6 x 6 Square Translucent Vellum Invitation Envelopes, Primary Blue, Bulk 250/Box (PACV517H)~#|#~m003905176_sc7JAM Paper 6 x 6 Square Translucent Vellum Invitation Envelopes, Primary Blue, Bulk 250/Box (PACV517H)~#|#~m003905175_sc7
Item: 1589794
Model: PACV517H
No reviews yet
Price is $283.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Primary Yellow, 50/Pack (PACV526I)~#|#~m003905178_sc7JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Primary Yellow, 50/Pack (PACV526I)~#|#~m003905177_sc7
Item: 1588461
Model: PACV526I
No reviews yet
Price is $58.99
Unit of measure 50/Pack
Free delivery by Wed, May 06
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Over 30
JAM Paper 9.5 x 12.625 Booklet Translucent Vellum Envelopes, Clear, Bulk 1000/Carton (2851377B)~#|#~m006965541_sc7JAM Paper 9.5 x 12.625 Booklet Translucent Vellum Envelopes, Clear, Bulk 1000/Carton (2851377B)~#|#~m006965540_sc7
Item: 262173
Model: 2851377B
No reviews yet
Price is $1,065.99
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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JAM Paper 4Bar A1 Invitation Envelopes, 3.625 x 5.125, Dark Grey, 25/Pack (36396431)~#|#~m004671964_sc7JAM Paper 4Bar A1 Invitation Envelopes, 3.625 x 5.125, Dark Grey, 25/Pack (36396431)~#|#~m004671963_sc7
Item: 261448
Model: 36396431
Price is $9.99
Unit of measure 25/Pack
Delivery by Wed, May 06
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LUX 5 x 5 Square Envelopes, 500/Box, Navy (LUX-8505-103500)~#|#~m000081531_sc7
Item: 516866
Model: LUX-8505-103500
No reviews yet
Price is $77.79
Free delivery by Fri, May 08
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Over 30
LUX Moistenable Glue Envelope 3 1/8" x 6 1/4", Pastel Blue, 50/Pack (WS-7614-50)~#|#~FCB0284C-42AF-4800-9C9EE7952F0A5C87_sc7LUX Moistenable Glue Envelope 3 1/8" x 6 1/4", Pastel Blue, 50/Pack (WS-7614-50)~#|#~48644DC9-6DB0-4259-B71E1BC1DF3A8E62_sc7
Item: 23996470
Model: WS-7614-50
No reviews yet
Price is $16.19
Unit of measure 50/Pack
Delivery by Fri, May 08
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JAM Paper 6 x 6 Square Invitation Envelopes, Burgundy, Bulk 250/Box (36395838H)~#|#~m002934244_sc7JAM Paper 6 x 6 Square Invitation Envelopes, Burgundy, Bulk 250/Box (36395838H)~#|#~m002934243_sc7
Item: 1589762
Model: 36395838H
No reviews yet
Price is $283.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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JAM Paper 6.25 x 7.875 Open End Foil Envelopes with Self-Adhesive Closure, Gold, 25/Pack (1323273)~#|#~m000067467_sc7
Item: 260886
Model: 1323273
No reviews yet
Price is $33.99
Unit of measure 25/Pack
Delivery by Wed, May 06
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JAM Paper Square Envelopes, Peel & Press, Candy Pink, 6 1/4 x 6 1/4, 250 Pack (8530-23-250)~#|#~sp228873549_sc7
Item: 24578535
Model: 8530-23-250
No reviews yet
Price is $49.19
Unit of measure 250/Pack
Free delivery by Wed, May 06
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 500/Box, Seafoam (LUX-4872-113500)~#|#~m000081873_sc7
Item: 517556
Model: LUX-4872-113500
No reviews yet
Price is $98.59
Free delivery by Fri, May 08
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LUX Moistenable Glue Envelope 3 1/8" x 6 1/4", Pastel Green, 50/Pack (WS-7613-50)~#|#~31ADDF43-21C1-4FA7-B3E14C535F11FF91_sc7LUX Moistenable Glue Envelope 3 1/8" x 6 1/4", Pastel Green, 50/Pack (WS-7613-50)~#|#~A3AAB715-7560-4359-8EC60CDCF09B5F88_sc7
Item: 23996710
Model: WS-7613-50
Price is $13.59
Unit of measure 50/Pack
Delivery by Fri, May 08
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LUX 5 x 5 Square Envelopes, 250/Box, Ruby Red (8505-18-250)~#|#~m000081533_sc7
Item: 515015
Model: 8505-18-250
No reviews yet
Price is $97.19
Free delivery by Fri, May 08
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JAM Paper 6.125 x 9.5 Booklet Foil Envelopes with Self-Adhesive Closure, Black, 25/Pack (1323282)~#|#~sp137086396_sc7JAM Paper 6.125 x 9.5 Booklet Foil Envelopes with Self-Adhesive Closure, Black, 25/Pack (1323282)~#|#~sp137085714_sc7
Item: 260907
Model: 1323282
No reviews yet
Price is $41.89
Unit of measure 25/Pack
Free delivery by Wed, May 06
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JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Copper, 25/Pack (V018251)~#|#~m003905245_sc7JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Copper, 25/Pack (V018251)~#|#~m003905244_sc7
Item: 261952
Model: V018251
No reviews yet
Price is $21.99
Unit of measure 25/Pack
Delivery by Wed, May 06
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Over 30
LUX 7 1/2 x 7 1/2 Square Envelopes, 50/Box, Gold Metallic (8555-07-50)~#|#~m004063767_sc7
Item: 2146228
Model: 8555-07-50
No reviews yet
Price is $36.49
Unit of measure 50/Pack
Free delivery by Fri, May 08
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 4Bar A1, 3.8125 x 5.1875, Clear, 1000/Carton (4BARCELLOB)~#|#~m000068412_sc7
Item: 262921
Model: 4BARCELLOB
No reviews yet
Price is $209.99
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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Over 30
LUX 6 1/2 x 6 1/2 Square Envelopes, 250/Box, Ruby Red (EX8535-18-250)~#|#~m000081559_sc7
Item: 387325
Model: EX8535-14-500
No reviews yet
Price is $180.29
Unit of measure 500/Box
Free delivery by Fri, May 08
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JAM Paper #10 Business Foil Envelopes with Peel & Seal Closure, 4 1/8" x 9 1/2", Black, 100/Pack (01327704B)~#|#~sp137085716_sc7
Item: 260952
Model: 01327704B
No reviews yet
Price is $137.79
Unit of measure 100/Box
Free delivery by Wed, May 06
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JAM Paper 6.5 x 6.5 Square Invitation Envelopes, Teal, 50/Pack (2101419222i)~#|#~sp5708746_sc7JAM Paper 6.5 x 6.5 Square Invitation Envelopes, Teal, 50/Pack (2101419222i)~#|#~sp5708745_sc7
Item: 23981158
Model: 2101419222I
No reviews yet
Price is $58.99
Unit of measure 50/Pack
Free delivery by Wed, May 06
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Over 30
LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, Wasabi (FE4865-22-500)~#|#~m000081746_sc7
Item: 513944
Model: FE4865-22-500
No reviews yet
Price is $98.29
Free delivery by Fri, May 08
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Over 30
LUX 9 x 12 Open End Envelopes 250/Pack, Midnight Black (80428-250)~#|#~sp14807538_sc7
Item: 24261169
Model: 80428-250
No reviews yet
Price is $126.39
Unit of measure 250/Pack
Free delivery by Fri, May 08
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Over 30
LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Copper Metallic (5380-11-250)~#|#~m000081698_sc7
Item: 515676
Model: 5380-11-250
Price is $165.29
Free delivery by Fri, May 08
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LUX A2 (4 3/8 x 5 3/4) 250/Box, Ruby Red (EX4870-18-250)~#|#~m000081820_sc7
Item: 514414
Model: EX4870-18-250
No reviews yet
Price is $86.09
Free delivery by Fri, May 08
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JAM Paper 6 x 6 Square Translucent Vellum Invitation Envelopes, Primary Red, 50/Pack (PACV515I)~#|#~m002169020_sc7
Item: 1588397
Model: PACV515I
No reviews yet
Price is $58.99
Unit of measure 50/Pack
Free delivery by Wed, May 06
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JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Primary Blue, Bulk 250/Box (PACV527H)~#|#~m006965545_sc7JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Primary Blue, Bulk 250/Box (PACV527H)~#|#~m006965544_sc7
Item: 1589793
Model: PACV527H
No reviews yet
Price is $283.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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JAM Paper 6.5 x 6.5 Square Invitation Envelopes, Dark Grey, Bulk 1000/Carton (263917200b)~#|#~sp4808526_sc7JAM Paper 6.5 x 6.5 Square Invitation Envelopes, Dark Grey, Bulk 1000/Carton (263917200b)~#|#~sp4808525_sc7
Item: 2632945
Model: 263917200B
No reviews yet
Price is $846.99
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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LUX 6 1/2 x 6 1/2 Square Envelopes, 500/Box, Quartz Metallic (8535-08-500)~#|#~FAD4CC31-325B-4D72-B28D48A156A0A166_sc7LUX 6 1/2 x 6 1/2 Square Envelopes, 500/Box, Quartz Metallic (8535-08-500)~#|#~AC2E4FBB-34E5-4329-85F4DB249CAB6F5D_sc7
Item: 514790
Model: 8535-08-500
No reviews yet
Price is $201.99
Free delivery by Fri, May 08
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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.