Sponsored Products
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JAM Paper #10 Policy Business Strathmore Envelopes, 4.125 x 9.5, Natural White Wove, 25/Pack (191249)~#|#~m007063366_sc7JAM Paper #10 Policy Business Strathmore Envelopes, 4.125 x 9.5, Natural White Wove, 25/Pack (191249)~#|#~m007049471_sc7
Item: 262548
Model: 191249
Price is $14.89
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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JAM Paper® Plastic Envelopes with Hook & Loop Closure, Index Booklet, 5.5 x 7.5, Clear, 12/Pack (920V0CL)~#|#~m005223799_sc7JAM Paper® Plastic Envelopes with Hook & Loop Closure, Index Booklet, 5.5 x 7.5, Clear, 12/Pack (920V0CL)~#|#~m005223798_sc7
Item: 263522
Model: 920V0CL
Price is $41.19
Unit of measure 12/Pack Price per unit $3.43/Envelope
Free delivery by Fri, Dec 19
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JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Yellow Recycled, 25/Pack (356730557)~#|#~m003757860_sc7JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Yellow Recycled, 25/Pack (356730557)~#|#~m003562845_sc7
Item: 2103401
Model: 356730557
No reviews yet
Price is $16.39
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 500/Box, Natural - 100% Recycled (4875-NPC-500)~#|#~m000161354_sc7
Item: 384818
Model: 4875-NPC-500
No reviews yet
Price is $93.09
Unit of measure 500/Box
Free delivery by Tue, Dec 23
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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 Tue, Dec 23
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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 80lbs. 5 3/4" x 8 3/4" A9 Invitation Envelopes W/Peel & Press, Midnight Black, 250/BX~#|#~m000081720_sc7
Item: 387523
Model: F-4595-B-250
No reviews yet
Price is $114.09
Unit of measure 250/Box
Free delivery by Tue, Dec 23
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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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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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Partners Tyvek Expandable Envelopes, 10" x 13" x 1 1/2", White, 100/Case (TYE10131WE)~#|#~m004079051_sc7
Item: 2301090
Model: TYE10131WE
No reviews yet
Price is $234.99
Unit of measure 100/Carton
Free delivery by Fri, Dec 19
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LUX 9 x 12 Open End Envelopes 50/Pack, Smoke (EX4894-22-50)~#|#~sp14807569_sc7
Item: 24261083
Model: EX4894-22-50
No reviews yet
Price is $25.19
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper 10" x 13" Open End Catalog Envelopes, Black, 10/Pack (87733B)~#|#~9445785A-A496-4D68-B040D430D0E0B5B2_sc7JAM Paper 10" x 13" Open End Catalog Envelopes, Black, 10/Pack (87733B)~#|#~0A03EAE2-8E19-4167-9147DE3E429D77D4_sc7
Item: 38275
Model: 87733B
No reviews yet
Price is $18.99
Unit of measure 10/Pack
Delivery by Fri, Dec 19
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LUX #14 Open End Envelopes (5 x 11 1/2) 50/Box, 28lb. White (WS-5200-50)~#|#~m004063926_sc7
Item: 2146577
Model: WS-5200-50
No reviews yet
Price is $56.49
Unit of measure 50/Pack
Free delivery by Tue, Dec 23
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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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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Sunflower (EX4875-12-50)~#|#~m000081956_sc7
Item: 282667
Model: EX4875-12-50
No reviews yet
Price is $14.95
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 250/Box, 70lb. Bright White (20743-250)~#|#~m000082124_sc7
Item: 515435
Model: 20743-250
No reviews yet
Price is $53.19
Free delivery by Tue, Dec 23
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LUX Self Seal #5 1/2 Coin Envelopes, 3 1/8" x 5 1/2", Navy, 50/Pack (LUX512CO10350)~#|#~sp14807610_sc7
Item: 24260977
Model: LUX512CO10350
No reviews yet
Price is $18.49
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper 8.75 x 11.5 Booklet Translucent Vellum Envelopes, Clear, 25/Pack (2851370)~#|#~sp126919174_sc7JAM Paper 8.75 x 11.5 Booklet Translucent Vellum Envelopes, Clear, 25/Pack (2851370)~#|#~sp126919173_sc7
Item: 262135
Model: 2851370
Price is $44.49
Unit of measure 25/Pack
Free delivery by Fri, Dec 19
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LUX 5 x 5 Square Envelopes, 50/Box, Natural - 100% Recycled (8505-NPC-50)~#|#~m000081528_sc7
Item: 282161
Model: 8505-NPC-50
No reviews yet
Price is $35.89
Unit of measure 50/Pack
Free delivery by Tue, Dec 23
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LUX A2 (4 3/8 x 5 3/4) 250/Box, Natural Linen (4870-NLI-250)~#|#~m000161363_sc7
Item: 384723
Model: 4870-NLI-250
Price is $46.59
Unit of measure 250/Box
Free delivery by Tue, Dec 23
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 250/Box, Mandarin (EX4875-11-250)~#|#~m000081929_sc7
Item: 386514
Model: EX4875-11-250
No reviews yet
Price is $86.79
Unit of measure 250/Box
Free delivery by Tue, Dec 23
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LUX 9" x 12" Open End Window Envelopes, Grocery Bag~#|#~m001406663_sc7
Item: 1277748
Model: 1590-GB-50
No reviews yet
Price is $21.89
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper Self Seal Catalog Envelope, 9" x 12", Red, 50/Pack (188447598I)~#|#~3C15ED8D-02C3-4406-A903D0EED8584CD9_sc7
Item: 24557914
Model: 188447598I
No reviews yet
Price is $43.19
Unit of measure 50/Pack
Free delivery by Fri, Dec 19
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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 Slimline Invitation Envelopes (3 7/8 x 8 7/8) 50/Box, 70lb. Natural (72973-01-50)~#|#~m001149708_sc7
Item: 1030038
Model: 72973-01-50
No reviews yet
Price is $18.89
Delivery by Tue, Dec 23
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LUX 9" x 12" Open End Window Envelopes, Sunflower Yellow (LUX-1590-12-50)~#|#~m001406670_sc7
Item: 1277741
Model: LUX-1590-12-50
No reviews yet
Price is $46.79
Unit of measure 50/Pack
Free delivery by Tue, Dec 23
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JAM Paper 9.5 x 12.625 Booklet Translucent Vellum Envelopes, Clear, 25/Pack (2851377)~#|#~m006965541_sc7JAM Paper 9.5 x 12.625 Booklet Translucent Vellum Envelopes, Clear, 25/Pack (2851377)~#|#~m006965540_sc7
Item: 262137
Model: 2851377
No reviews yet
Price is $33.99
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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JAM Paper #1 Coin Envelope, 2 1/4" x 3 1/2", White, 100/Pack (122326658)~#|#~sp95007324_sc7JAM Paper #1 Coin Envelope, 2 1/4" x 3 1/2", White, 100/Pack (122326658)~#|#~m001298996_sc7
Item: 1227828
Model: 122326658
Price is $39.59
Unit of measure 100/Pack
Free delivery by Fri, Dec 19
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Pool (LUX-4872-102-50)~#|#~m000081871_sc7
Item: 282560
Model: LUX-4872-102-50
No reviews yet
Price is $14.95
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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LUX 8" x 8" Square Envelopes, Ruby Red, 50/PK (LUX-8565-18-50)~#|#~m003307875_sc7
Item: 1985072
Model: LUX-8565-18-50
No reviews yet
Price is $56.09
Unit of measure 50/Box
Free delivery by Tue, Dec 23
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JAM Paper Cellophane Envelope with Peel & Seal Closure, 10 x 13, Clear, 100/Pack (10X13CELLO)~#|#~m000068422_sc7
Item: 262916
Model: 10X13CELLO
Price is $76.89
Unit of measure 100/Pack
Free 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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JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Fuchsia Pink, 50/Pack (15847I)~#|#~m003904529_sc7JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Fuchsia Pink, 50/Pack (15847I)~#|#~m003904528_sc7
Item: 1588564
Model: 15847I
Price is $20.49
Unit of measure 50/Pack
Delivery by Fri, Dec 19
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Mandarin (EX4880-11-50)~#|#~m005902327_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Mandarin (EX4880-11-50)~#|#~m005823958_sc7
Item: 282786
Model: EX4880-11-50
Price is $26.49
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper Tyvek Open End Open End #13 Catalog Envelope, 10" x 13", Blue, 10/Pack (V021377B)~#|#~sp61031317_sc7JAM Paper Tyvek Open End Open End #13 Catalog Envelope, 10" x 13", Blue, 10/Pack (V021377B)~#|#~sp61031282_sc7
JAM Paper Tyvek Open End Open End #13 Catalog Envelope, 10" x 13", Blue, 10/Pack (V021377B) is Out of stock
Item: 1912872
Model: V021377B
Price is $15.89
Unit of measure 10/Pack
LUX 8 1/2 x 8 1/2 Square Envelopes, 50/Box, Gold Metallic (8575-07-50)~#|#~m003307874_sc7
LUX 8 1/2 x 8 1/2 Square Envelopes, 50/Box, Gold Metallic (8575-07-50) is Out of stock
Item: 1985310
Model: 8575-07-50
No reviews yet
Price is $30.89
Unit of measure 50/Box
JAM Paper Tear-Proof Tyvek Open End Catalog Envelopes, 11.5" x 14.5", Black, 25/Pack (V021386)~#|#~sp61031314_sc7JAM Paper Tear-Proof Tyvek Open End Catalog Envelopes, 11.5" x 14.5", Black, 25/Pack (V021386)~#|#~sp61031280_sc7
JAM Paper Tear-Proof Tyvek Open End Catalog Envelopes, 11.5" x 14.5", Black, 25/Pack (V021386) is Out of stock
Item: 261828
Model: V021386
Price is $73.19
Unit of measure 25/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.