Sponsored Products
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JAM Paper 9 x 12 Booklet Envelopes, Dark Purple, 25/Pack (572312532)~#|#~sp112110402_sc7JAM Paper 9 x 12 Booklet Envelopes, Dark Purple, 25/Pack (572312532)~#|#~sp112110401_sc7
Item: 261635
Model: 572312532
Price is $26.09
Unit of measure 25/Pack
Delivery by Tue, Dec 23
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JAM Paper 6" x 9" Open End Catalog Envelopes, Baby Blue, 10/Pack (1285578B)~#|#~m003904741_sc7JAM Paper 6" x 9" Open End Catalog Envelopes, Baby Blue, 10/Pack (1285578B)~#|#~m003904740_sc7
Item: 38299
Model: 1285578B
No reviews yet
Price is $12.59
Unit of measure 10/Pack
Delivery by Tue, Dec 23
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JAM Paper #11 Policy Business Envelopes, 4.5 x 10.375, White, 25/Pack (1623187)~#|#~sp123308000_sc7JAM Paper #11 Policy Business Envelopes, 4.5 x 10.375, White, 25/Pack (1623187)~#|#~sp123307999_sc7
Item: 366524
Model: 1623187
No reviews yet
Price is $14.89
Unit of measure 25/Pack
Delivery by Tue, Dec 23
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Lux Double Window Invoice Envelopes Citrus 4 1/8 x 9 1/2 inch 50/Pack~#|#~m002084678_sc7
Item: 1559063
Model: INVDW-L20-50
No reviews yet
Price is $49.89
Free delivery by Fri, Dec 26
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Lux Window Envelopes, Navy 6 x 9 inch 50/Pack~#|#~m002084638_sc7
Item: 1559161
Model: FFW-69-103-50
No reviews yet
Price is $69.09
Free delivery by Fri, Dec 26
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Pool (LUX-4870-102-50)~#|#~m000081816_sc7
Item: 282494
Model: LUX-4870-102-50
No reviews yet
Price is $12.49
Unit of measure 50/Pack
Delivery by Fri, Dec 26
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LUX 5 1/2" x 8 1/8" 60lbs. Square Flap Envelopes W/Glue, Holiday Red, 50/pack~#|#~m000082128_sc7
Item: 282881
Model: 67146-50
No reviews yet
Price is $15.39
Unit of measure 50/Pack
Delivery by Fri, Dec 26
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JAM Paper 6 x 6 Square Foil Lined Invitation Envelopes, White with Gold Foil, 25/Pack (3244689)~#|#~m003904850_sc7JAM Paper 6 x 6 Square Foil Lined Invitation Envelopes, White with Gold Foil, 25/Pack (3244689)~#|#~m003904849_sc7
Item: 262779
Model: 3244689
Price is $20.49
Unit of measure 25/Pack
Delivery by Tue, Dec 23
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LUX 80lbs. 5 3/4" x 8 3/4" A9 Envelopes, Holiday Green, 500/BX~#|#~m000081752_sc7
Item: 385957
Model: 89129-500
No reviews yet
Price is $117.79
Unit of measure 500/Box
Free delivery by Fri, Dec 26
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JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Blue Recycled, 50/Pack (356730539i)~#|#~sp4211485_sc7JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Blue Recycled, 50/Pack (356730539i)~#|#~sp4211484_sc7
Item: 2478043
Model: 356730539I
No reviews yet
Price is $20.39
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Blue Recycled, 25/Pack (1526764)~#|#~m003757920_sc7JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Blue Recycled, 25/Pack (1526764)~#|#~m003750601_sc7
Item: 1227745
Model: 1526764
Price is $16.39
Unit of measure 25/Pack
Delivery by Tue, Dec 23
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LUX 80lbs. 5 3/4" x 8 3/4" A9 Invitation Envelopes W/Peel & Press, Wisteria Purple, 250/BX~#|#~m000082193_sc7
Item: 388681
Model: LUX-4895-106-25
No reviews yet
Price is $91.49
Unit of measure 250/Box
Free delivery by Fri, Dec 26
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JAM Paper Plastic Envelopes with Button and String Tie Closure, Index Booklet, 5.5 x 7.5, Purple, 12/Pack (920B1PU)~#|#~sp73451318_sc7JAM Paper Plastic Envelopes with Button and String Tie Closure, Index Booklet, 5.5 x 7.5, Purple, 12/Pack (920B1PU)~#|#~sp73451324_sc7
Item: 1589498
Model: 920B1PU
No reviews yet
Price is $28.19
Unit of measure 12/Pack
Delivery by Tue, Dec 23
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Holiday Red (FE4265-15-50)~#|#~m000081710_sc7
Item: 282372
Model: FE4265-15-50
No reviews yet
Price is $13.29
Unit of measure 50/Pack
Delivery by Fri, Dec 26
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LUX 5 3/4" x 8 3/4" 80lbs. A9 Invitation Envelopes W/Peel & Press, Midnight Black, 50/Pack~#|#~m000081720_sc7
Item: 282931
Model: F-4595-B-50
Price is $18.95
Unit of measure 50/Pack
Delivery by Fri, Dec 26
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LUX A10 Invitation Envelopes (6 x 9 1/2) 50/Box, Midnight Black (F-4590-B-50)~#|#~m000081720_sc7
Item: 282419
Model: F-4590-B-50
No reviews yet
Price is $30.29
Unit of measure 50/Pack
Delivery by Fri, Dec 26
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LUX 9 x 12 Open End Envelopes 250/Pack, 28lb. Bright White (8250-250)~#|#~sp14807488_sc7
Item: 24260730
Model: 8250-250
No reviews yet
Price is $73.39
Unit of measure 250/Pack
Free delivery by Fri, Dec 26
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LUX Moistenable Glue #1 Currency Envelopes, 2.25" x 3.5", Bright White, 1000/Box (94623-1000)~#|#~sp42186985_sc7
Item: 514700
Model: 94623-1000
Price is $112.69
Free delivery by Fri, Dec 26
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JAM Paper A10 Invitation Envelope, 6 1/2" x 9 1/2", White, 100/Pack (12039C)~#|#~sp115352023_sc7JAM Paper A10 Invitation Envelope, 6 1/2" x 9 1/2", White, 100/Pack (12039C)~#|#~sp115352019_sc7
Item: 2103320
Model: 12039C
Price is $31.29
Unit of measure 100/Pack
Delivery by Tue, Dec 23
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JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, Black Linen, 25/Pack (64345)~#|#~m003904604_sc7JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, Black Linen, 25/Pack (64345)~#|#~m003904603_sc7
Item: 261568
Model: 64345
Price is $14.29
Unit of measure 25/Pack
Delivery by Tue, Dec 23
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LUX 6 x 6 Square Envelopes 50/Pack, Citrus (8525-20-50)~#|#~sp14807811_sc7
Item: 24260419
Model: 8525-20-50
No reviews yet
Price is $14.29
Unit of measure 50/Pack
Delivery by Fri, Dec 26
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JAM Paper Kraft A6 Invitation Envelopes, 4.75 x 6.5, Brown Kraft Paper Bag, Bulk 250/Box (LEKR650H)~#|#~sp115352003_sc7JAM Paper Kraft A6 Invitation Envelopes, 4.75 x 6.5, Brown Kraft Paper Bag, Bulk 250/Box (LEKR650H)~#|#~sp115352002_sc7
Item: 1589019
Model: LEKR650H
Price is $89.49
Unit of measure 250/Box
Free delivery by Tue, Dec 23
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Smoke (LUX-4872-22-50)~#|#~m000081875_sc7
Item: 282564
Model: LUX-4872-22-50
No reviews yet
Price is $14.95
Unit of measure 50/Pack
Delivery by Fri, Dec 26
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Partners Tyvek Envelopes, 10" x 13", Green, 100/Case (TYC1013G)~#|#~m004079055_sc7
Item: 2301086
Model: TYC1013G
No reviews yet
Price is $133.99
Unit of measure 100/Carton
Free delivery by Tue, Dec 23
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JAM Paper #16 Policy Business Envelopes, 5.875 x 12, White, 25/Pack (416211891)~#|#~m000141631_sc7
Item: 366666
Model: 416211891
Price is $17.29
Unit of measure 25/Pack
Delivery by Tue, Dec 23
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LUX Offering Envelopes (3 1/8 x 6 1/4) 500/Pack, White (WS-7605-500)~#|#~sp5822112_sc7LUX Offering Envelopes (3 1/8 x 6 1/4) 500/Pack, White (WS-7605-500)~#|#~sp5874369_sc7
Item: 23996820
Model: WS-7605-500
No reviews yet
Price is $86.49
Unit of measure 500/Pack
Free delivery by Fri, Dec 26
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Rose Quartz Metallic (5365-04-50)~#|#~m000081732_sc7
Item: 282396
Model: 5365-04-50
No reviews yet
Price is $23.59
Unit of measure 50/Pack
Delivery by Fri, Dec 26
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LUX 80lbs. 4 1/8" x 9 1/2" #10 Smooth Square Flap Envelopes, Navy Blue, 1000/BX~#|#~m000161287_sc7
Item: 388492
Model: LUX-4860-103-10
No reviews yet
Price is $228.69
Unit of measure 1000/Box
Free delivery by Fri, Dec 26
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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
Item: 263624
Model: 21515987
No reviews yet
Price is $24.19
Unit of measure 25/Pack
Delivery by Tue, Dec 23
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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 Tue, Dec 23
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LUX 80lbs. 4 3/8" x 5 3/4" A2 RSVP, Invitation Envelopes W/Peel & Press, Wisteria Purple, 250/BX~#|#~m000081844_sc7
Item: 388588
Model: LUX-4870-106-25
No reviews yet
Price is $68.09
Unit of measure 250/Box
Free delivery by Fri, Dec 26
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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 Fri, Dec 26
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LUX 7 x 7 Square Envelopes, 50/Box, 70lb. White (10936-50)~#|#~m000081632_sc7
Item: 282279
Model: 10936-50
Price is $45.79
Unit of measure 50/Pack
Free delivery by Fri, Dec 26
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LUX 5 1/2 x 5 1/2 Square Envelopes, 50/Box, Avocado (EX8515-27-50)~#|#~m000081470_sc7
Item: 282101
Model: EX8515-27-50
No reviews yet
Price is $20.69
Unit of measure 50/Pack
Delivery by Fri, Dec 26
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LUX A2 (4 3/8 x 5 3/4) 500/Box, Holiday Red (FE4270-15-500)~#|#~m000081790_sc7
Item: 514000
Model: FE4270-15-500
No reviews yet
Price is $70.09
Free delivery by Fri, Dec 26
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Quality Park Redi-Seal Kraft Catalog Envelope, 9 1/2" x 12 1/2", Kraft, 100/Box (43667)~#|#~s0293005_sc7Quality Park Redi-Seal Kraft Catalog Envelope, 9 1/2" x 12 1/2", Kraft, 100/Box (43667)~#|#~s0171353_sc7
Quality Park Redi-Seal Kraft Catalog Envelope, 9 1/2" x 12 1/2", Kraft, 100/Box (43667) is Out of stock
Item: 813431
Model: QUA43667
Unit of measure 100/Box
LUX 5.5" x 8.5" Kraft Open End - 24lb. Brown Kraft 50/Pack, 24lb. Brown Kraft (WS-4584-50)~#|#~B448E156-2AB9-42D4-B27E023CED6F0F50_sc7LUX 5.5" x 8.5" Kraft Open End - 24lb. Brown Kraft 50/Pack, 24lb. Brown Kraft (WS-4584-50)~#|#~80C58C37-45E6-467E-A9AF313EC314AE4A_sc7
LUX 5.5" x 8.5" Kraft Open End - 24lb. Brown Kraft 50/Pack, 24lb. Brown Kraft (WS-4584-50) is Out of stock
Item: 23995479
Model: WS-4584-50
No reviews yet
Price is $43.09
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.