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LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Silver Metallic, 250/BX~#|#~m004940415_sc7LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Silver Metallic, 250/BX~#|#~m005823916_sc7
Item: 384974
Model: 5360-06-250
No reviews yet
Price is $140.09
Unit of measure 250/Box
Free delivery by Wed, Feb 18
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Grocery Bag (4875-GB-50)~#|#~m000081918_sc7
Item: 282618
Model: 4875-GB-50
No reviews yet
Price is $14.29
Unit of measure 50/Pack
Delivery by Wed, Feb 18
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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 Wed, Feb 18
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JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Jupiter Red, 25/Pack (SD5370 20)~#|#~m002934281_sc7JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Jupiter Red, 25/Pack (SD5370 20)~#|#~m002934280_sc7
Item: 262000
Model: SD5370 20
No reviews yet
Price is $28.29
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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JAM Paper A10 Translucent Vellum Invitation Envelopes, 6 x 9.5, Clear, 25/Pack (31284)~#|#~sp137085727_sc7
Item: 262118
Model: 31284
No reviews yet
Price is $29.99
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, White with Silver Foil, 25/Pack (3243671)~#|#~m004671937_sc7JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, White with Silver Foil, 25/Pack (3243671)~#|#~m004671936_sc7
Item: 262759
Model: 3243671
Price is $17.09
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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LUX #10 All Purpose Window (4 1/8 x 9 1/2) 250/Box, 24lb. White w/ Sec Tint (WS-3133-250)~#|#~m004064002_sc7
Item: 2146680
Model: WS-3133-250
No reviews yet
Price is $72.79
Unit of measure 250/Pack
Free delivery by Wed, Feb 18
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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, Feb 18
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LUX #7 Coin Envelopes (3 1/2 x 6 1/2) 250/Pack, Limelight (LUX-7CO-101-250)~#|#~sp14807797_sc7
Item: 24260385
Model: LUX-7CO-101-250
No reviews yet
Price is $40.89
Unit of measure 250/Pack
Free delivery by Wed, Feb 18
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JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Orange Recycled, 25/Pack (95666)~#|#~m003904690_sc7JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Orange Recycled, 25/Pack (95666)~#|#~m003904689_sc7
Item: 261226
Model: 95666
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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JAM Paper A2 Parchment Invitation Envelopes, 4.375 x 5.75, Natural Recycled, Bulk 250/Box (34777H)~#|#~m007049410_sc7JAM Paper A2 Parchment Invitation Envelopes, 4.375 x 5.75, Natural Recycled, Bulk 250/Box (34777H)~#|#~m007049409_sc7
Item: 1589330
Model: 34777H
No reviews yet
Price is $78.99
Unit of measure 250/Box
Free delivery by Mon, Feb 16
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JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Ultra Lime Green, 50/Pack (96151I)~#|#~sp131391012_sc7JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Ultra Lime Green, 50/Pack (96151I)~#|#~sp131391011_sc7
Item: 1589522
Model: 96151I
No reviews yet
Price is $17.09
Unit of measure 50/Pack
Delivery by Mon, Feb 16
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Quality Park Redi-Seal Kraft Catalog Envelope, 12" x 15 1/2", Kraft, 250/Box (44062)~#|#~s0171359_sc7
Item: 377347
Model: QUA44062
No reviews yet
Price is $177.89
Unit of measure 250/Box
Free delivery by Thu, Feb 12
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JAM Paper #10 Business Envelope 4 1/8" x 9 1/2", Dark Green, 25/Pack (21514959)~#|#~A39DBCEE-6D8E-406C-BAB9041C11DCCE40_sc7JAM Paper #10 Business Envelope 4 1/8" x 9 1/2", Dark Green, 25/Pack (21514959)~#|#~5A98AEEA-DBF2-495F-8F0DBF4444796919_sc7
Item: 2633063
Model: 21514959
Price is $18.89
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Orange Recycled, 25/Pack (1526755)~#|#~m003757918_sc7JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Orange Recycled, 25/Pack (1526755)~#|#~m003750599_sc7
Item: 1227746
Model: 1526755
No reviews yet
Price is $12.49
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Pack, Champagne Metallic (4875-M08-50)~#|#~sp14807679_sc7
Item: 24260578
Model: 4875-M08-50
No reviews yet
Price is $23.89
Unit of measure 50/Pack
Delivery by Wed, Feb 18
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LUX 3.5 Mil 5 1/4"x7 1/4" A7 Invitation Envelopes W/Peel&Seal, Crystal Clear, 500/BX~#|#~m000081564_sc7
Item: 514681
Model: CCA7-500
No reviews yet
Price is $125.39
Free delivery by Wed, Feb 18
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JAM Paper 9.5 x 12.625 Booklet Commercial Envelopes, White, 100/Pack (953454B)~#|#~m003904734_sc7JAM Paper 9.5 x 12.625 Booklet Commercial Envelopes, White, 100/Pack (953454B)~#|#~m003904508_sc7
Item: 263761
Model: 953454B
No reviews yet
Price is $43.09
Unit of measure 100/Box
Free delivery by Mon, Feb 16
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JAM Paper Peel & Seal Kraft Open End #13 Catalog Envelope, 10" x 13", Brown, 500/Pack (13034233C)~#|#~sp124518861_sc7JAM Paper Peel & Seal Kraft Open End #13 Catalog Envelope, 10" x 13", Brown, 500/Pack (13034233C)~#|#~sp124518841_sc7
Item: 24295081
Model: 13034233C
No reviews yet
Price is $220.39
Unit of measure 500/Pack
Free delivery by Mon, Feb 16
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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, Feb 16
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JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, 25/Pack (4231)~#|#~sp121512178_sc7JAM Paper 8.5 x 8.5 Square Invitation Envelopes, White, 25/Pack (4231)~#|#~sp121512177_sc7
Item: 263922
Model: 4231
Price is $25.89
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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JAM Paper 2.375 x 2.375 Mini Square Envelopes, White, 100/Pack (203642A)~#|#~sp121512214_sc7JAM Paper 2.375 x 2.375 Mini Square Envelopes, White, 100/Pack (203642A)~#|#~sp121512213_sc7
Item: 1227806
Model: 203642A
No reviews yet
Price is $27.99
Unit of measure 100/Pack
Delivery by Mon, Feb 16
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JAM Paper #10 Business Envelopes, 4.125 x 9.5, Baby Blue, Bulk 500/Box (2155778H)~#|#~5919944E-7278-4F67-B9B9763E17C6E6FD_sc7JAM Paper #10 Business Envelopes, 4.125 x 9.5, Baby Blue, Bulk 500/Box (2155778H)~#|#~CFA949F6-6990-4C05-988C673881FE92FF_sc7
Item: 1589634
Model: 2155778H
No reviews yet
Price is $138.79
Unit of measure 500/Box
Free delivery by Mon, Feb 16
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LUX 5 1/2 x 5 1/2 Square Envelopes, 1000/Box, 70lb. Bright White (10902-1000)~#|#~m000081469_sc7
Item: 516617
Model: 10902-1000
Price is $143.29
Free delivery by Wed, Feb 18
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JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Orange Recycled, Bulk 1000/Carton (356730548C)~#|#~m003757870_sc7JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Orange Recycled, Bulk 1000/Carton (356730548C)~#|#~m003562854_sc7
Item: 2103413
Model: 356730548C
No reviews yet
Price is $271.99
Unit of measure 1000/Carton
Free delivery by Mon, Feb 16
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80 lb 6 1/4" x 6 1/4" Peel & Press Square Envelopes, Midnight Black, 50/Pack~#|#~m001149685_sc7
Item: 1030064
Model: LUX-8530-B-50
No reviews yet
Price is $40.39
Free delivery by Wed, Feb 18
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JAM Paper #10 Business Foil Envelopes with Self-Adhesive Closure, 4.125 x 9.5, Red, 25/Pack (1323307)~#|#~m000067476_sc7
Item: 260897
Model: 1323307
No reviews yet
Price is $41.89
Unit of measure 25/Pack
Free delivery by Mon, Feb 16
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70 lb 3 1/4" x 3 1/4" Peel & Press Square Envelopes, Grocery Bag Brown, 1000/Box~#|#~m001149704_sc7
Item: 1028597
Model: 8503-GB-1000
No reviews yet
Price is $230.76
Free delivery by Wed, Feb 18
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LUX Moistenable Glue Envelope 3 1/8" x 6 1/4", Pastel Gray, 1000/Pack (WS-7615-1000)~#|#~7D7A3F7F-CDA5-4C1E-BE3B24F591F5D5BC_sc7LUX Moistenable Glue Envelope 3 1/8" x 6 1/4", Pastel Gray, 1000/Pack (WS-7615-1000)~#|#~2C4461BC-03DD-40A8-BDB4674714805DB3_sc7
Item: 23996531
Model: WS-7615-1000
No reviews yet
Price is $122.73
Unit of measure 1000/Pack
Free delivery by Wed, Feb 18
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JAM Paper 5.5 x 5.5 Square Invitation Envelopes, Presidential Blue, 25/Pack (263917212)~#|#~sp4808476_sc7JAM Paper 5.5 x 5.5 Square Invitation Envelopes, Presidential Blue, 25/Pack (263917212)~#|#~sp4808475_sc7
Item: 2633101
Model: 263917212
No reviews yet
Price is $35.59
Unit of measure 25/Pack
Free delivery by Mon, Feb 16
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JAM Paper Peel & Seal Open End #13 Catalog Envelope, 10" x 13", White, 100/Pack (376634184B)~#|#~sp74203708_sc7JAM Paper Peel & Seal Open End #13 Catalog Envelope, 10" x 13", White, 100/Pack (376634184B)~#|#~sp74203800_sc7
Item: 24295232
Model: 376634184B
No reviews yet
Price is $257.29
Unit of measure 100/Pack
Free delivery by Mon, Feb 16
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JAM Paper A6 Invitation Envelopes, 4.75 x 6.5, Teal, Bulk 250/Box (157462H)~#|#~m003904714_sc7JAM Paper A6 Invitation Envelopes, 4.75 x 6.5, Teal, Bulk 250/Box (157462H)~#|#~m003904713_sc7
Item: 1590205
Model: 157462H
No reviews yet
Price is $77.99
Unit of measure 250/Box
Free delivery by Mon, Feb 16
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JAM Paper Strathmore #10 Business Envelope, 4 1/8" x 9 1/2", Natural White Wove, 25/Pack (34992)~#|#~m007159127_sc7JAM Paper Strathmore #10 Business Envelope, 4 1/8" x 9 1/2", Natural White Wove, 25/Pack (34992)~#|#~m007159126_sc7
JAM Paper Strathmore #10 Business Envelope, 4 1/8" x 9 1/2", Natural White Wove, 25/Pack (34992) is Out of stock
Item: 262547
Model: 34992
No reviews yet
Price is $20.49
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.