Sponsored Products
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JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Yellow Recycled, 50/Pack (96326I)~#|#~m003904698_sc7JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Yellow Recycled, 50/Pack (96326I)~#|#~m003904697_sc7
Item: 1589524
Model: 96326I
Price is $20.49
Unit of measure 50/Pack
Delivery by Fri, Dec 19
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LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes, Quartz Metallic, 50/Pack~#|#~E3C45768-EEBF-435E-BDBE73282E3B9323_sc7LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes, Quartz Metallic, 50/Pack~#|#~C8FFC367-88FA-4BF1-BF994A897CFFE709_sc7
Item: 281930
Model: 5360-08-50
Price is $27.49
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper Booklet Envelope, 9" x 12", Sunflower Yellow, 50/Pack (372317017I)~#|#~E110D27F-1375-4A44-A9D577E8A342E834_sc7
Item: 24557998
Model: 372317017I
No reviews yet
Price is $49.89
Unit of measure 50/Pack
Free delivery by Fri, Dec 19
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LUX 70lbs. 4 1/8" x 9 1/2" #10 Open End Envelopes, Sunflower Yellow, 500/BX~#|#~m000081284_sc7
Item: 386917
Model: EX7716-12-500
No reviews yet
Price is $209.29
Unit of measure 500/Box
Free delivery by Tue, Dec 23
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JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", Black Linen, 25/Pack (V01218)~#|#~m003905223_sc7JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", Black Linen, 25/Pack (V01218)~#|#~m003905222_sc7
Item: 261584
Model: V01218
Price is $12.99
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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LUX 5 3/4" x 8 3/4" A9 Invitation Envelopes W/Peel & Seel, Crystal Clear, 250/BX~#|#~m000081564_sc7
Item: 386005
Model: CCA9-250
No reviews yet
Price is $96.69
Unit of measure 250/Box
Free delivery by Tue, Dec 23
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LUX 5 1/4 x 5 1/4 Square Envelopes 50/Pack, 70lb. Bright White (8510-70W-50)~#|#~sp14807793_sc7
Item: 24261318
Model: 8510-70W-50
Price is $17.49
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper #13 Booklet Envelope, 10" x 13", White, 1000/Carton (04023222B)~#|#~m003904863_sc7JAM Paper #13 Booklet Envelope, 10" x 13", White, 1000/Carton (04023222B)~#|#~m003904862_sc7
Item: 366500
Model: 04023222B
No reviews yet
Price is $358.59
Unit of measure 1000/Carton
Free delivery by Fri, Dec 19
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LUX 5 x 5 Square Envelopes, 50/Box, Pool (LUX-8505-102-50)~#|#~m000081532_sc7
Item: 282166
Model: LUX-8505-102-50
No reviews yet
Price is $14.95
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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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 Fri, Dec 19
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JAM Paper Self Seal Invitation Envelope, 4 x 4, Gray, 50 Pack (8504-22-50)~#|#~sp226423820_sc7JAM Paper Self Seal Invitation Envelope, 4 x 4, Gray, 50 Pack (8504-22-50)~#|#~sp226423819_sc7
Item: 24578472
Model: 8504-22-50
No reviews yet
Price is $16.29
Unit of measure 50/Pack
Delivery by Fri, Dec 19
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JAM Paper Square Envelopes, Peel & Press, Avocado Green, 6 1/4 x 6 1/4, 250 Pack (8530-2502-250)~#|#~sp228873522_sc7
Item: 24578462
Model: 8530-102-250
No reviews yet
Price is $55.49
Unit of measure 250/Pack
Free delivery by Fri, Dec 19
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LUX A6 Foil Lined Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, White w/Silver LUX Lining (FLWH4875-03-50)~#|#~m000081969_sc7
Item: 282682
Model: FLWH4875-03-50
No reviews yet
Price is $20.99
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper A2 Colored Invitation Envelopes, 4.375 x 5.75, Sea Blue Recycled, 25/Pack (70207)~#|#~sp123307974_sc7JAM Paper A2 Colored Invitation Envelopes, 4.375 x 5.75, Sea Blue Recycled, 25/Pack (70207)~#|#~sp123307973_sc7
Item: 263902
Model: 70207
Price is $11.49
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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JAM Paper Plastic Envelopes with Button and String Tie Closure, Index Booklet, 5.5 x 7.5, Lime Green, 12/Pack (920B1LI)~#|#~sp89839992_sc7JAM Paper Plastic Envelopes with Button and String Tie Closure, Index Booklet, 5.5 x 7.5, Lime Green, 12/Pack (920B1LI)~#|#~sp89840097_sc7
Item: 1227727
Model: 920B1LI
Price is $40.79
Unit of measure 12/Pack Price per unit $3.40/Envelope
Free delivery by Fri, Dec 19
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LUX Square Flap Self Seal #10 Invitation Envelope, 4 1/2" x 9 1/2", Candy Pink, 50/Pack (EX4860-14-50)~#|#~sp14807476_sc7
Item: 24261022
Model: EX4860-14-50
No reviews yet
Price is $25.19
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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LUX A7 Foil Lined Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Navy w/Gold LUX Lining (FLNV4880-04-50)~#|#~m000082057_sc7
Item: 282799
Model: FLNV4880-04-50
Price is $41.99
Unit of measure 50/Pack
Free delivery by Tue, Dec 23
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LUX Gummed Security Tinted #9 Business Envelopes, 3 7/8" x 8 7/8", White, 1000/Box (61549-1000)~#|#~sp39612763_sc7
Item: 385459
Model: 61549-1000
Price is $110.59
Unit of measure 1000/Box
Free delivery by Tue, Dec 23
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LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes W/Glue Closure, Azalea Metallic Pink~#|#~m004940424_sc7LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes W/Glue Closure, Azalea Metallic Pink~#|#~m005823902_sc7
Item: 281916
Model: 5360-24-50
Price is $45.79
Unit of measure 50/Pack
Free delivery by Tue, Dec 23
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JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Ultra Fuchsia Pink, 50/Pack (1526767I)~#|#~m003184166_sc7
Item: 2329339
Model: 1526767I
Price is $20.39
Unit of measure 50/Pack
Delivery by Fri, Dec 19
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Quality Park Redi-Seal Self Seal #10 Double Window Envelope, 4 1/2" x 9 1/2", White Wove, 1000/Pack (24559-QP-1000)~#|#~sp5822112_sc7Quality Park Redi-Seal Self Seal #10 Double Window Envelope, 4 1/2" x 9 1/2", White Wove, 1000/Pack (24559-QP-1000)~#|#~sp80341907_sc7
Item: 23995459
Model: 24559-QP-1000
No reviews yet
Price is $225.49
Unit of measure 1000/Pack
Free delivery by Tue, Dec 23
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JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Red Recycled, 25/Pack (355228282)~#|#~m002934588_sc7JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Red Recycled, 25/Pack (355228282)~#|#~m002934587_sc7
Item: 1589512
Model: 355228282
No reviews yet
Price is $9.99
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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LUX A7 Foil Lined Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, White w/Black LUX Lining (FLWH4880-02-50)~#|#~m000082097_sc7
Item: 282844
Model: FLWH4880-02-50
Price is $35.69
Unit of measure 50/Pack
Free delivery by Tue, Dec 23
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JAM Paper #6 Coin Envelopes, 3 3/8" x 6", White, 100/Pack (1623184D)~#|#~F32695E4-9A04-45FF-AFC71CF993316173_sc7
Item: 24557945
Model: 1623184D
No reviews yet
Price is $20.49
Unit of measure 100/Pack
Delivery by Fri, Dec 19
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JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Blue Recycled, 25/Pack (356730539)~#|#~m003757862_sc7JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Blue Recycled, 25/Pack (356730539)~#|#~m003750593_sc7
Item: 2103490
Model: 356730539
Price is $11.49
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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LUX 4 x 4 Square 50/Pack, Ruby Red (8504-18-50)~#|#~sp14807904_sc7
Item: 24260632
Model: 8504-18-50
No reviews yet
Price is $14.39
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper #3 Kraft Coin Business Envelopes, 2.5 x 4.25, Brown Kraft Manila, Bulk 1000/Carton (01623989B)~#|#~E1E49265-8CE9-4B3F-8FDBA38C45BA398A_sc7JAM Paper #3 Kraft Coin Business Envelopes, 2.5 x 4.25, Brown Kraft Manila, Bulk 1000/Carton (01623989B)~#|#~sp137084910_sc7
Item: 1227826
Model: 01623989B
No reviews yet
Price is $105.09
Unit of measure 1000/Carton
Free delivery by Fri, Dec 19
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LUX 6 1/2 x 6 1/2 Foil Lined Square Envelopes, 50/Box, White w/Red LUX Lining (FLWH8535-01-50)~#|#~m000081599_sc7
Item: 282242
Model: FLWH8535-01-50
No reviews yet
Price is $27.49
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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Partners Tyvek Self Seal Catalog Envelope 10" x 13", Silver, 100/Carton (TYC1013S)~#|#~5BA92B00-9829-43DA-AD88EC9947A4FEA6_sc7
Item: 2301084
Model: TYC1013S
Price is $280.49
Unit of measure 100/Carton
Free delivery by Fri, Dec 19
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LUX Moistenable Glue Security Tinted Booklet Window Envelope, 6" x 9", 24lb. White w/ Sec. Tint, 250/Pack (69BW-24WMI-250)~#|#~sp12274947_sc7LUX Moistenable Glue Security Tinted Booklet Window Envelope, 6" x 9", 24lb. White w/ Sec. Tint, 250/Pack (69BW-24WMI-250)~#|#~sp12275036_sc7
Item: 24148637
Model: 69BW-24WMI-250
No reviews yet
Price is $104.89
Unit of measure 250/Pack
Free delivery by Tue, Dec 23
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LUX 9 x 12 Open End Envelopes 500/Pack, 28lb. Bright White (8250-500)~#|#~sp14807488_sc7
Item: 24260336
Model: 8250-500
Price is $101.09
Unit of measure 500/Pack
Free delivery by Tue, Dec 23
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LUX #10 Full Face Window Envelopes (4 1/8 x 9 1/2) 50/Pack, 28lb. Bright White (FFW-10-50)~#|#~sp14807466_sc7
Item: 24260466
Model: FFW-10-50
No reviews yet
Price is $21.59
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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LUX A8 Foil Lined Invitation Envelopes (5 1/2 x 8 1/8) 50/Box, White w/Gold LUX Lining (FLWH4885-04-50)~#|#~m000082134_sc7
Item: 282889
Model: FLWH4885-04-50
No reviews yet
Price is $45.89
Unit of measure 50/Pack
Free delivery by Tue, Dec 23
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JAM Paper Tear-Proof Open End Catalog Envelopes, 10" x 13", Red, 25/Pack (V021383)~#|#~m003905266_sc7JAM Paper Tear-Proof Open End Catalog Envelopes, 10" x 13", Red, 25/Pack (V021383)~#|#~m003905265_sc7
JAM Paper Tear-Proof Open End Catalog Envelopes, 10" x 13", Red, 25/Pack (V021383) is Out of stock
Item: 261824
Model: V021383
Price is $42.99
Unit of measure 25/Pack
LUX 28lbs. 11" x 17" Open End Flap Jumbo Envelopes, Bright White, 500/BX~#|#~m000161319_sc7
LUX 28lbs. 11" x 17" Open End Flap Jumbo Envelopes, Bright White, 500/BX is Out of stock
Item: 385905
Model: 85923-500
No reviews yet
Price is $290.69
Unit of measure 500/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.