LUX 5 1/4 x 5 1/4 Square Envelopes 50/Pack, Natural (8510-01-50)~#|#~sp14807815_sc7
Item: 24260745
Model: 8510-01-50
Price is $13.69
Unit of measure 50/Pack
Delivery by Mon, May 11
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JAM Paper A8 Strathmore Invitation Envelopes, 5.5 x 8.125, Bright White Wove, 25/Pack (STTW761)~#|#~m007159240_sc7JAM Paper A8 Strathmore Invitation Envelopes, 5.5 x 8.125, Bright White Wove, 25/Pack (STTW761)~#|#~m007159239_sc7
Item: 262526
Model: STTW761
No reviews yet
Price is $11.79
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Mandarin (EX4880-11-250)~#|#~m005902327_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Mandarin (EX4880-11-250)~#|#~m005823958_sc7
Item: 386604
Model: EX4880-11-250
No reviews yet
Price is $65.39
Unit of measure 250/Box
Free delivery by Mon, May 11
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Silver Metallic (5370-06-50)~#|#~m000081736_sc7
Item: 282504
Model: 5370-06-50
Price is $15.19
Unit of measure 50/Pack
Delivery by Mon, May 11
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Jupiter Metallic (5380-20-50)~#|#~m005902315_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Jupiter Metallic (5380-20-50)~#|#~m005823953_sc7
Item: 282777
Model: 5380-20-50
Price is $24.95
Unit of measure 50/Pack
Delivery by Mon, May 11
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Jupiter Metallic (5375-20-50)~#|#~m000081921_sc7
Item: 282622
Model: 5375-20-50
No reviews yet
Price is $22.95
Unit of measure 50/Pack
Delivery by Mon, May 11
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JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Orange Recycled, 50/Pack (356730558i)~#|#~sp4211489_sc7JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Orange Recycled, 50/Pack (356730558i)~#|#~sp4211488_sc7
Item: 2478039
Model: 356730558I
No reviews yet
Price is $19.39
Unit of measure 50/Pack
Delivery by Thu, May 07
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JAM Paper A6 Invitation Envelope, 4 3/4" x 6 1/2", White, 1000/Pack (31820B)~#|#~m003904578_sc7JAM Paper A6 Invitation Envelope, 4 3/4" x 6 1/2", White, 1000/Pack (31820B)~#|#~m003904577_sc7
Item: 366221
Model: 31820B
Price is $134.19
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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LUX 9 x 9 Square Envelopes, 50/Box, Midnight Black (F-8585-B-50)~#|#~m000081489_sc7
Item: 282324
Model: F-8585-B-50
No reviews yet
Price is $30.49
Unit of measure 50/Pack
Delivery by Mon, May 11
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LUX 80lb 3 5/8"x5 1/8" A1 Invitation Envelopes W/Peel&Press, Bright White, 500/BX~#|#~m000211246_sc7
Item: 513976
Model: FE4565-05-500
No reviews yet
Price is $92.59
Free delivery by Mon, May 11
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JAM Paper Invitation Envelope 6 1/2" x 6 1/2", Tan Beige, 50/Pack (227914986i)~#|#~C7950090-FC6A-439E-A4A2F8D1F5E0C0A3_sc7JAM Paper Invitation Envelope 6 1/2" x 6 1/2", Tan Beige, 50/Pack (227914986i)~#|#~74C09208-24E6-4919-A7CD001AEF8D5030_sc7
Item: 24604657
Model: 227914986i
No reviews yet
Price is $49.99
Unit of measure 50/Pack
Free delivery by Thu, May 07
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Over 30
LUX 60lbs. 5 3/4" x 8 3/4" A9 Invitation Envelopes W/Peel & Press, White/Silver LUX, 250/BX~#|#~m000082192_sc7
Item: 387931
Model: FLWH4895-03-250
No reviews yet
Price is $153.59
Unit of measure 250/Box
Free delivery by Mon, May 11
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JAM Paper A8 Colored Invitation Envelopes, 5.5 x 8.125, Yellow Recycled, 50/Pack (96334I)~#|#~m003904700_sc7JAM Paper A8 Colored Invitation Envelopes, 5.5 x 8.125, Yellow Recycled, 50/Pack (96334I)~#|#~m003904699_sc7
Item: 1589209
Model: 96334I
No reviews yet
Price is $22.69
Unit of measure 50/Pack
Delivery by Thu, May 07
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Over 30
LUX #7 Coin Envelopes (3 1/2 x 6 1/2) 50/Pack, Gold Metallic (7CO-M07-50)~#|#~sp14807802_sc7
Item: 24260437
Model: 7CO-M07-50
Price is $30.59
Unit of measure 50/Pack
Delivery by Mon, May 11
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JAM Paper #10 Policy Business Colored Envelopes, 4.125 x 9.5, Blue Recycled, Bulk 500/Box (15880H)~#|#~m003904550_sc7JAM Paper #10 Policy Business Colored Envelopes, 4.125 x 9.5, Blue Recycled, Bulk 500/Box (15880H)~#|#~m003904549_sc7
Item: 1589641
Model: 15880H
No reviews yet
Price is $202.99
Unit of measure 500/Box
Free delivery by Thu, May 07
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JAM Paper 10 x 10 Large Square Invitation Envelopes, White, 50/Pack (3992319I)~#|#~sp132864344_sc7JAM Paper 10 x 10 Large Square Invitation Envelopes, White, 50/Pack (3992319I)~#|#~sp132864343_sc7
Item: 1588504
Model: 3992319I
No reviews yet
Price is $62.29
Unit of measure 50/Pack
Free delivery by Thu, May 07
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JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Yellow Recycled, 100/Pack (356730557B)~#|#~m003757860_sc7JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Yellow Recycled, 100/Pack (356730557B)~#|#~m003562845_sc7
Item: 2103391
Model: 356730557B
No reviews yet
Price is $62.19
Unit of measure 100/Pack
Free delivery by Thu, May 07
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LUX 70lbs. 4 1/8" x 9 1/2" #10 Open End Envelopes, Avocado Green, 1000/BX~#|#~m000081265_sc7
Item: 386990
Model: EX7716-27-1000
No reviews yet
Price is $340.39
Unit of measure 1000/Box
Free delivery by Mon, May 11
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JAM Paper A10 Strathmore Invitation Envelopes, 6 x 9.5, Bright White Wove, 25/Pack (191220)~#|#~m007159183_sc7JAM Paper A10 Strathmore Invitation Envelopes, 6 x 9.5, Bright White Wove, 25/Pack (191220)~#|#~m007159182_sc7
Item: 262528
Model: 191220
No reviews yet
Price is $18.19
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX #1 Coin Envelopes (2 1/4 x 3 1/2) 500/Box, Teal (LUX-1CO-25-500)~#|#~m001149689_sc7
Item: 1028523
Model: LUX-1CO-25-500
No reviews yet
Price is $70.09
Free delivery by Mon, May 11
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JAM Paper 9 x 12 Open End Catalog Envelopes, Aqua Blue, 25/Pack (31287530)~#|#~sp61031353_sc7JAM Paper 9 x 12 Open End Catalog Envelopes, Aqua Blue, 25/Pack (31287530)~#|#~sp61031274_sc7
Item: 361974
Model: 31287530
No reviews yet
Price is $34.09
Unit of measure 25/Pack
Delivery by Thu, May 07
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JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Silver Stardream, 50/Pack (900905922I)~#|#~m004672038_sc7JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Silver Stardream, 50/Pack (900905922I)~#|#~m004672037_sc7
Item: 1588582
Model: 900905922I
Price is $65.89
Unit of measure 50/Pack
Free delivery by Thu, May 07
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LUX #5 1/2 Kraft Coin Envelopes (3 1/8 x 5 1/2) 250/Pack, 28lb. Gray Kraft (512CO-28GK-250)~#|#~D2C83030-76AC-4F7F-8FBEC149A7784303_sc7LUX #5 1/2 Kraft Coin Envelopes (3 1/8 x 5 1/2) 250/Pack, 28lb. Gray Kraft (512CO-28GK-250)~#|#~A2836B8F-A2B7-412F-B738A0933F1B9BDD_sc7
Item: 24261027
Model: 512CO-28GK-250
No reviews yet
Price is $39.89
Unit of measure 250/Pack
Free delivery by Mon, May 11
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JAM Paper #1 Coin Business Colored Envelopes, 2.25 x 3.5, Red Recycled, Bulk 1000/Carton (356730632C)~#|#~sp121512405_sc7JAM Paper #1 Coin Business Colored Envelopes, 2.25 x 3.5, Red Recycled, Bulk 1000/Carton (356730632C)~#|#~sp121512404_sc7
Item: 2103491
Model: 356730632C
No reviews yet
Price is $252.09
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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Partners Brand Tyvek Self Seal Catalog Envelope 10" x 13", 100/Carton (TYE10131WE)~#|#~98A96820-AB4B-4D14-A461DB5CD0FC5082_sc7
Item: 2301090
Model: TYE10131WE
No reviews yet
Price is $240.89
Unit of measure 100/Carton
Free delivery by Thu, May 07
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 50/Box, Holiday Green (67211-50)~#|#~m000081752_sc7
Item: 282880
Model: 67211-50
No reviews yet
Price is $15.59
Unit of measure 50/Pack
Delivery by Mon, May 11
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 250/Box, Lilac (SH4265-05-250)~#|#~m000081716_sc7
Item: 513662
Model: SH4265-05-250
No reviews yet
Price is $66.49
Free delivery by Mon, May 11
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LUX Moistenable Glue A2 Invitation Envelope, 5 3/4" x 4 3/8", Bright White, 1000/Box (72924-1000)~#|#~sp95007241_sc7LUX Moistenable Glue A2 Invitation Envelope, 5 3/4" x 4 3/8", Bright White, 1000/Box (72924-1000)~#|#~m000161328_sc7
Item: 385634
Model: 72924-1000
Price is $118.09
Unit of measure 1000/Box
Free delivery by Mon, May 11
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LUX 6 1/2 x 6 1/2 Square Envelopes, 50/Box, Natural (8535-03-50)~#|#~m000081579_sc7
Item: 282218
Model: 8535-03-50
Price is $14.69
Unit of measure 50/Pack
Delivery by Mon, May 11
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LUX 4 1/4" x 6 1/4" A4 Photo, Invitation Envelopes W/Peel & Press, Natural/Gold LUX, 1000/BX~#|#~m005823921_sc7
Item: 388362
Model: FLNT4872-04-100
No reviews yet
Price is $142.79
Unit of measure 1000/Box
Free delivery by Mon, May 11
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Pool (LUX-4865-102-50)~#|#~m000081726_sc7
Item: 282389
Model: LUX-4865-102-50
No reviews yet
Price is $13.95
Unit of measure 50/Pack
Delivery by Mon, May 11
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Over 30
JAM Paper® Plastic Envelopes with Button and String Tie Closure, Legal Booklet, 9.75 x 14.5, Red, 12/Pack (219B1RE)~#|#~m004858123_sc7JAM Paper® Plastic Envelopes with Button and String Tie Closure, Legal Booklet, 9.75 x 14.5, Red, 12/Pack (219B1RE)~#|#~m004857967_sc7
Item: 1433905
Model: 219B1RE
No reviews yet
Price is $43.49
Unit of measure 12/Pack Price per unit $3.62/Envelope
Free delivery by Thu, May 07
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Over 30
JAM Paper A10 Foil Lined Invitation Envelopes, 6 x 9.5, White with Silver Foil, 50/Pack (900905601I)~#|#~m004672036_sc7JAM Paper A10 Foil Lined Invitation Envelopes, 6 x 9.5, White with Silver Foil, 50/Pack (900905601I)~#|#~m004672035_sc7
Item: 1588744
Model: 900905601I
No reviews yet
Price is $37.99
Unit of measure 50/Pack
Free delivery by Thu, May 07
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Over 30
LUX 9 x 12 Booklet Envelopes 50/Pack, White w/ Peel & Seel (14554-50)~#|#~sp14807564_sc7
Item: 24260278
Model: 14554-50
No reviews yet
Price is $29.39
Unit of measure 50/Pack
Delivery by Mon, May 11
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Over 30
LUX 60lb 4 1/8"x9 1/2" Square Flap #10 Envelopes W/Peel&Press, White W/Red LUX, 500/BX~#|#~m000081263_sc7
Item: 516402
Model: FLWH4260-01-500
Price is $121.89
Free delivery by Mon, May 11
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LUX 80lb 5 3/4"x8 3/4" A9 Invitation Envelopes W/Peel&Press, Wisteria Purple, 500/BX~#|#~m000082193_sc7
LUX 80lb 5 3/4"x8 3/4" A9 Invitation Envelopes W/Peel&Press, Wisteria Purple, 500/BX is Out of stock
Item: 517568
Model: LUX-4895-106500
Price is $120.79
JAM Paper #10 Policy Business Envelopes, 4.125 x 9.5, Black Linen, 50/Pack (V01218I)~#|#~m003905223_sc7JAM Paper #10 Policy Business Envelopes, 4.125 x 9.5, Black Linen, 50/Pack (V01218I)~#|#~m003905222_sc7
JAM Paper #10 Policy Business Envelopes, 4.125 x 9.5, Black Linen, 50/Pack (V01218I) is Out of stock
Item: 1588604
Model: V01218I
No reviews yet
Price is $26.09
Unit of measure 50/Pack
Quality Park #10 Clasp & Moistenable Glue Kraft Catalog Envelope, 3.38" x 6", Brown Kraft, 100/Box (QUA37010)~#|#~sp53358560_sc7Quality Park #10 Clasp & Moistenable Glue Kraft Catalog Envelope, 3.38" x 6", Brown Kraft, 100/Box (QUA37010)~#|#~sp53358558_sc7
Quality Park #10 Clasp & Moistenable Glue Kraft Catalog Envelope, 3.38" x 6", Brown Kraft, 100/Box (QUA37010) is Out of stock
Item: 513224
Model: QUA37010
No reviews yet
Unit of measure 100/Box
JAM Paper #6 Coin Business Envelopes, 3.375 x 6, Black, 50/Pack (356730564i)~#|#~sp4808514_sc7JAM Paper #6 Coin Business Envelopes, 3.375 x 6, Black, 50/Pack (356730564i)~#|#~sp4808513_sc7
JAM Paper #6 Coin Business Envelopes, 3.375 x 6, Black, 50/Pack (356730564i) is Out of stock
Item: 2633118
Model: 356730564I
No reviews yet
Price is $20.99
Unit of measure 50/Pack
LUX 80lbs. 5 3/4" x 8 3/4" A9 Envelopes, Holiday Green, 250/BX~#|#~m000081752_sc7
LUX 80lbs. 5 3/4" x 8 3/4" A9 Envelopes, Holiday Green, 250/BX is Out of stock
Item: 385956
Model: 89129-250
Price is $78.99
Unit of measure 250/Box
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.