JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Blue Recycled, 25/Pack (356730559)~#|#~sp132864609_sc7JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Blue Recycled, 25/Pack (356730559)~#|#~sp132864608_sc7
Item: 2103403
Model: 356730559
No reviews yet
Price is $11.49
Unit of measure 25/Pack
Delivery by Thu, May 07
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JAM Paper 4Bar A1 Colored Invitation Envelopes, 3.625 x 5.125, Green Recycled, 50/Pack (15811I)~#|#~m003904521_sc7JAM Paper 4Bar A1 Colored Invitation Envelopes, 3.625 x 5.125, Green Recycled, 50/Pack (15811I)~#|#~m003904520_sc7
Item: 1588768
Model: 15811I
No reviews yet
Price is $17.99
Unit of measure 50/Pack
Delivery by Thu, May 07
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JAM Paper 5.5 x 5.5 Square Translucent Vellum Envelopes, Leaf Green, 50/Pack (1591908I)~#|#~m002168281_sc7
Item: 1588386
Model: 1591908I
No reviews yet
Price is $58.99
Unit of measure 50/Pack
Free delivery by Thu, May 07
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LUX 80lbs. 5" x 5" Square Envelopes W/Peel & Press, Limelight Green, 250/BX~#|#~m000081527_sc7
Item: 388712
Model: LUX-8505-101-25
No reviews yet
Price is $49.79
Unit of measure 250/Box
Free delivery by Mon, May 11
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JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Violet Purple Recycled, 100/Pack (356730560B)~#|#~m003757872_sc7JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Violet Purple Recycled, 100/Pack (356730560B)~#|#~m003562852_sc7
Item: 2103389
Model: 356730560B
No reviews yet
Price is $37.19
Unit of measure 100/Pack
Free delivery by Thu, May 07
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JAM Paper 6 x 6 Square Invitation Envelopes, White, 50/Pack (28416I)~#|#~sp126919273_sc7JAM Paper 6 x 6 Square Invitation Envelopes, White, 50/Pack (28416I)~#|#~sp126919272_sc7
Item: 1588509
Model: 28416I
Price is $44.19
Unit of measure 50/Pack
Free delivery by Thu, May 07
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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 $94.19
Unit of measure 500/Box
Free delivery by Mon, May 11
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LUX 6 1/2 x 6 1/2 Square Envelopes, 50/Box, Copper Metallic (8535-11-50)~#|#~m000081563_sc7
Item: 282199
Model: 8535-11-50
No reviews yet
Price is $31.09
Unit of measure 50/Pack
Delivery by Mon, May 11
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JAM Paper Kraft A8 Invitation Envelopes, 5.5 x 8.125, Brown Kraft Paper Bag, Bulk 250/Box (LEKR750H)~#|#~sp132864566_sc7JAM Paper Kraft A8 Invitation Envelopes, 5.5 x 8.125, Brown Kraft Paper Bag, Bulk 250/Box (LEKR750H)~#|#~sp132864565_sc7
Item: 1589945
Model: LEKR750H
No reviews yet
Price is $89.99
Unit of measure 250/Box
Free delivery by Thu, May 07
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JAM Paper #10 Business Envelopes, 4.125 x 9.5, Navy Blue, Bulk 1000/Carton (LEBA367B)~#|#~m003905150_sc7JAM Paper #10 Business Envelopes, 4.125 x 9.5, Navy Blue, Bulk 1000/Carton (LEBA367B)~#|#~m003905149_sc7
Item: 261728
Model: LEBA367B
No reviews yet
Price is $226.69
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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LUX 6 1/2 x 6 1/2 Foil Lined Square Envelopes, 1000/Box, White w/Silver LUX Lining (FLWH8535-031000)~#|#~m000081600_sc7
Item: 517226
Model: FLWH8535-031000
No reviews yet
Price is $205.69
Free delivery by Mon, May 11
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JAM Paper® Plastic Envelopes with Button and String Tie Closure, Index Booklet, 5.5 x 7.5, Smoke Gray, 12/Pack (920B1SM)~#|#~m000068460_sc7
Item: 262991
Model: 920B1SM
Price is $32.19
Unit of measure 12/Pack Price per unit $2.68/Envelope
Delivery by Thu, May 07
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JAM Paper Square Envelopes, Peel & Press, 3 1/4 x 3 1/4, Sunflower Yellow, 250 Pack (8503-84-250)~#|#~sp228873500_sc7
Item: 24578414
Model: 8503-84-250
No reviews yet
Price is $43.09
Unit of measure 250/Pack
Free delivery by Thu, May 07
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Flame Metallic (5380-26-250)~#|#~m005902317_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Flame Metallic (5380-26-250)~#|#~m000082023_sc7
Item: 515471
Model: 5380-26-250
No reviews yet
Price is $118.89
Free delivery by Mon, May 11
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Over 30
LUX 9" x 12" Open End Window Envelopes, Limelight Green~#|#~m001406666_sc7
Item: 1277745
Model: LUX-1590-101-50
No reviews yet
Price is $55.39
Unit of measure 50/Pack
Free delivery by Mon, May 11
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JAM Paper 9.5 x 9.5 Square Translucent Vellum Invitation Envelopes, Clear, 50/Pack (2851357I)~#|#~m002168463_sc7
Item: 1588967
Model: 2851357I
No reviews yet
Price is $58.99
Unit of measure 50/Pack
Free delivery by Thu, May 07
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JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Orange, 25/Pack (PACV619)~#|#~m000068160_sc7
Item: 262314
Model: PACV619
No reviews yet
Price is $26.29
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 1000/Box, White Linen (4872-WLI-1000)~#|#~m000211237_sc7
Item: 516204
Model: 4872-WLI-1000
No reviews yet
Price is $153.79
Free delivery by Mon, May 11
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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 $238.29
Free delivery by Mon, May 11
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 1000/Box, Citrus (FE4280-20-1000)~#|#~m005902340_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 1000/Box, Citrus (FE4280-20-1000)~#|#~m005823944_sc7
Item: 387847
Model: FE4280-20-1000
No reviews yet
Price is $165.29
Unit of measure 1000/Box
Free delivery by Mon, May 11
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LUX 6 1/4 x 6 1/4 Square Envelopes, 50/Box, Ruby Red (LUX-8530-18-50)~#|#~m003307880_sc7
Item: 1985254
Model: LUX-8530-18-50
No reviews yet
Price is $24.59
Unit of measure 50/Box
Delivery by Mon, May 11
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LUX 5 1/4 x 5 1/4 Square Envelopes 250/Pack, 70lb. Bright White (8510-70W-250)~#|#~sp14807793_sc7
Item: 24260288
Model: 8510-70W-250
No reviews yet
Price is $51.19
Unit of measure 250/Pack
Free delivery by Mon, May 11
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JAM Paper A9 Colored Invitation Envelopes, 5.75 x 8.75, Red Recycled, Bulk 250/Box (14257H)~#|#~sp115352031_sc7JAM Paper A9 Colored Invitation Envelopes, 5.75 x 8.75, Red Recycled, Bulk 250/Box (14257H)~#|#~sp115352030_sc7
Item: 1590112
Model: 14257H
No reviews yet
Price is $104.79
Unit of measure 250/Box
Free delivery by Thu, May 07
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LUX 6 x 9 Open End Envelopes, Black Linen, 500/Box (1644-BLI-500)~#|#~DFEBE010-A11E-46BB-B5A138BF0F40BCA0_sc7LUX 6 x 9 Open End Envelopes, Black Linen, 500/Box (1644-BLI-500)~#|#~4E862B5C-8E67-4231-8B4F12909677ADEB_sc7
Item: 1028640
Model: 1644-BLI-500
No reviews yet
Price is $117.39
Free delivery by Mon, May 11
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JAM Paper #12 Kraft Policy Business Envelopes, 4.75 x 11, Brown Kraft Paper Bag, Bulk 1000/Carton (2119018862B)~#|#~m004672048_sc7JAM Paper #12 Kraft Policy Business Envelopes, 4.75 x 11, Brown Kraft Paper Bag, Bulk 1000/Carton (2119018862B)~#|#~m004672047_sc7
Item: 261565
Model: 2119018862B
No reviews yet
Price is $439.19
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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JAM Paper® Plastic Envelopes with Button and String Tie Closure, Letter Booklet, 9.75 x 13, Orange, 108/Pack (218B1ORB)~#|#~m004858021_sc7JAM Paper® Plastic Envelopes with Button and String Tie Closure, Letter Booklet, 9.75 x 13, Orange, 108/Pack (218B1ORB)~#|#~m004857854_sc7
Item: 263059
Model: 218B1ORB
No reviews yet
Price is $242.19
Unit of measure 108/Box Price per unit $2.24/Envelope
Free delivery by Thu, May 07
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JAM Paper A8 Translucent Vellum Invitation Envelopes, 5.5 x 8.125, Clear, 50/Pack (79462I)~#|#~m002168797_sc7
Item: 1589081
Model: 79462I
No reviews yet
Price is $47.99
Unit of measure 50/Pack
Free delivery by Thu, May 07
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 5.0625 x 7.1875, Peach, 100/Pack (2785508)~#|#~m000969558_sc7
Item: 235574
Model: 2785508
No reviews yet
Price is $48.99
Unit of measure 100/Pack
Free delivery by Thu, May 07
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JAM Paper 6 x 6 Square Translucent Vellum Invitation Envelopes, Gold, 25/Pack (PACV577)~#|#~m003905180_sc7JAM Paper 6 x 6 Square Translucent Vellum Invitation Envelopes, Gold, 25/Pack (PACV577)~#|#~m003905179_sc7
Item: 262255
Model: PACV577
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX #10 Square Flap Envelopes (4 1/8 x 9 1/2) 50/Pack, White - 100% Recycled (4860-WPC-50)~#|#~sp14807406_sc7
Item: 24260847
Model: 4860-WPC-50
Price is $20.19
Unit of measure 50/Pack
Delivery by Mon, May 11
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LUX Self Seal #10 Window Envelope, 4 1/8" x 9 1/2", Midnight Black, 50/Pack (FFW-10-B-50)~#|#~m002084694_sc7
Item: 1559032
Model: FFW-10-B-50
No reviews yet
Price is $25.39
Delivery by Mon, May 11
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LUX 70lb 4 1/8"x9 1/2" Open End #10 Envelopes, Natural, 500/BX~#|#~m000161321_sc7
Item: 516419
Model: 7716-N-500
No reviews yet
Price is $95.79
Free delivery by Mon, May 11
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LUX Self Seal A7 Window Envelope, 5 1/4" x 7 1/4", White, 50/Box (A7FFW-28W-50)~#|#~m003307940_sc7
Item: 1984837
Model: A7FFW-28W-50
Price is $34.59
Unit of measure 50/Box
Delivery by Mon, May 11
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Redi-Seal™ Catalog Envelopes, 9x12", White, 100/Box~#|#~s0292379_sc7Redi-Seal™ Catalog Envelopes, 9x12", White, 100/Box~#|#~s0171348_sc7
Item: QUA43517
Model: QUA43517
Price is $35.09
Unit of measure Box
Free Next-Day eligible by tomorrow
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LUX 80lb 5 3/4"x8 3/4" A9 Invitation Envelopes W/Peel&Press, Limelight Green, 500/BX~#|#~m000082166_sc7
Item: 517492
Model: LUX-4895-101500
No reviews yet
Price is $139.59
Free delivery by Mon, May 11
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Over 30
JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Red Recycled, Bulk 1000/Carton (355228282C)~#|#~m002934588_sc7JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Red Recycled, Bulk 1000/Carton (355228282C)~#|#~m002934587_sc7
Item: 2102860
Model: 355228282C
No reviews yet
Price is $271.99
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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JAM Paper A10 Parchment Invitation Envelopes, 6 x 9.5, Blue Recycled, Bulk 250/Box (10486H)~#|#~m003904495_sc7JAM Paper A10 Parchment Invitation Envelopes, 6 x 9.5, Blue Recycled, Bulk 250/Box (10486H)~#|#~m003904494_sc7
Item: 1589973
Model: 10486H
No reviews yet
Price is $87.39
Unit of measure 250/Box
Free delivery by Thu, May 07
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JAM Paper 6.5" x 6.5" Square Translucent Vellum Invitation Envelopes, Racing Green, 100/Pack (1592125B)~#|#~m000068865_sc7
Item: 38051
Model: 1592125B
No reviews yet
Price is $64.99
Unit of measure 100/Pack
Free delivery by Thu, May 07
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JAM Paper 9 x 12 Booklet Envelopes, Baby Blue, 25/Pack (21515987)~#|#~sp134498434_sc7JAM Paper 9 x 12 Booklet Envelopes, Baby Blue, 25/Pack (21515987)~#|#~sp134498432_sc7
JAM Paper 9 x 12 Booklet Envelopes, Baby Blue, 25/Pack (21515987) is Out of stock
Item: 263624
Model: 21515987
No reviews yet
Price is $24.19
Unit of measure 25/Pack
JAM Paper A6 Parchment Invitation Envelopes, 4.75 x 6.5, Natural Recycled, 50/Pack (34926I)~#|#~sp137086009_sc7
JAM Paper A6 Parchment Invitation Envelopes, 4.75 x 6.5, Natural Recycled, 50/Pack (34926I) is Out of stock
Item: 1588905
Model: 34926I
No reviews yet
Price is $20.49
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.