Square Envelopes

LUX 60lbs. 5 1/2" x 8 1/8" A8 Invitation Envelopes W/Glue, Holiday Red, 500/BX~#|#~m000082128_sc7
Item: 385621
Model: 67146-500
No reviews yet
Price is $83.39
Unit of measure 500/Box
Free delivery by Mon, May 11
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LUX Open End Envelopes 9" x 12", Pool Blue~#|#~m001406667_sc7
Item: 1277800
Model: LUX-1590-102-1M
No reviews yet
Price is $283.79
Unit of measure 1000/Box
Free delivery by Mon, May 11
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JAM Paper 6.5 x 6.5 Square Invitation Envelopes, Dark Grey, 25/Pack (263917200)~#|#~sp4808526_sc7JAM Paper 6.5 x 6.5 Square Invitation Envelopes, Dark Grey, 25/Pack (263917200)~#|#~sp4808525_sc7
Item: 2632866
Model: 263917200
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX A2 (4 3/8 x 5 3/4) - Blush 500/Pack, Blush (LUX-4870-39-500)~#|#~sp5822112_sc7LUX A2 (4 3/8 x 5 3/4) - Blush 500/Pack, Blush (LUX-4870-39-500)~#|#~sp5874317_sc7
Item: 23996648
Model: LUX-4870-39-500
No reviews yet
Price is $94.89
Unit of measure 500/Pack
Free delivery by Mon, May 11
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JAM Paper #5 Coin Business Envelopes, 2.875 x 5.25, White, 25/Pack (16211217)~#|#~sp111772386_sc7JAM Paper #5 Coin Business Envelopes, 2.875 x 5.25, White, 25/Pack (16211217)~#|#~sp111772385_sc7
Item: 362519
Model: 16211217
Price is $7.99
Unit of measure 25/Pack
Delivery by Thu, May 07
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JAM Paper A10 Invitation Envelopes, 6 x 9.5, Navy Blue, 50/Pack (LEBA867I)~#|#~m003905164_sc7JAM Paper A10 Invitation Envelopes, 6 x 9.5, Navy Blue, 50/Pack (LEBA867I)~#|#~m003905163_sc7
Item: 1588715
Model: LEBA867I
Price is $29.09
Unit of measure 50/Pack
Delivery by Thu, May 07
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JAM Paper 4Bar A1 Translucent Vellum Envelopes, 3.625 x 5.125, Platinum Silver, 25/Pack (1591590)~#|#~m004671927_sc7JAM Paper 4Bar A1 Translucent Vellum Envelopes, 3.625 x 5.125, Platinum Silver, 25/Pack (1591590)~#|#~m004671926_sc7
Item: 262262
Model: 1591590
No reviews yet
Price is $36.49
Unit of measure 25/Pack
Free delivery by Thu, May 07
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LUX 80lb 4 1/8"x9 1/2" Square Flap Metallic #10 Envelopes, Bronze, 500/BX~#|#~m004940419_sc7LUX 80lb 4 1/8"x9 1/2" Square Flap Metallic #10 Envelopes, Bronze, 500/BX~#|#~m005823903_sc7
Item: 516491
Model: 5360-12-500
No reviews yet
Price is $158.69
Free delivery by Mon, May 11
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LUX Double Window Invoice Envelopes (4 1/8 x 9 1/8) 250/Box, Mandarin (INVDW-11-250)~#|#~m004063892_sc7
Item: 2147440
Model: INVDW-11-250
Price is $77.39
Unit of measure 250/Pack
Free delivery by Mon, May 11
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JAM Paper 6.5 x 6.5 Kraft Square Invitation Envelopes, Brown Kraft Paper Bag, 50/Pack (63131150B)~#|#~m004542986_sc7JAM Paper 6.5 x 6.5 Kraft Square Invitation Envelopes, Brown Kraft Paper Bag, 50/Pack (63131150B)~#|#~m004542985_sc7
Item: 2329330
Model: 63131150B
No reviews yet
Price is $58.99
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, 1000/Box, Quartz Metallic (8535-08-1000)~#|#~m000081583_sc7
Item: 514791
Model: 8535-08-1000
No reviews yet
Price is $337.59
Free delivery by Mon, May 11
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JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Primary Red, 25/Pack (1592122)~#|#~m002934319_sc7JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Primary Red, 25/Pack (1592122)~#|#~m002934318_sc7
Item: 262244
Model: 1592122
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX 6 1/2 x 6 1/2 Square Envelopes, 500/Box, Mandarin (EX8535-11-500)~#|#~m000081577_sc7
Item: 387318
Model: EX8535-11-500
No reviews yet
Price is $180.29
Unit of measure 500/Box
Free delivery by Mon, May 11
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JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Teal, Bulk 1000/Carton (3157507B)~#|#~m003904838_sc7JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Teal, Bulk 1000/Carton (3157507B)~#|#~m003904837_sc7
Item: 364155
Model: 3157507B
No reviews yet
Price is $846.99
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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Quality Park Redi-Seal Security Tinted Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (QUA11218)~#|#~sp46777632_sc7Quality Park Redi-Seal Security Tinted Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (QUA11218)~#|#~sp46777631_sc7
Item: QUA11218
Model: QUA11218
Price is $82.89
Unit of measure Box
Free delivery by Mon, May 04
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LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 500/Box, White w/Black LUX Lining (FLWH4872-02-500)~#|#~m000081881_sc7
Item: 513836
Model: FLWH4872-02-500
No reviews yet
Price is $88.69
Free delivery by Mon, May 11
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LUX A2 (4 3/8 x 5 3/4) 250/Box, Jupiter Metallic (5370-20-250)~#|#~m000081792_sc7
Item: 385175
Model: 5370-20-250
No reviews yet
Price is $69.79
Unit of measure 250/Box
Free delivery by Mon, May 11
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LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 500/Box, White w/Silver LUX Lining (FLWH4872-03-500)~#|#~m000081884_sc7
Item: 513830
Model: FLWH4872-03-500
No reviews yet
Price is $89.49
Free delivery by Mon, May 11
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LUX 6 1/2 x 6 1/2 Square Envelopes, 1000/Box, Smoke (EX8535-22-1000)~#|#~m000081589_sc7
Item: 514177
Model: EX8535-22-1000
No reviews yet
Price is $262.49
Free delivery by Mon, May 11
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LUX 8" x 8" Square Envelopes, Ruby Red, 1000/PK (LUX-8565-18-1M)~#|#~m003307875_sc7
Item: 1985004
Model: LUX-8565-18-1M
No reviews yet
Price is $411.39
Unit of measure 1000/Box
Free delivery by Mon, May 11
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JAM Paper 6 x 8 Open End Catalog Foil Envelopes with Zip Closure, Clear, 25/Pack (3006A58A2)~#|#~m004672195_sc7JAM Paper 6 x 8 Open End Catalog Foil Envelopes with Zip Closure, Clear, 25/Pack (3006A58A2)~#|#~m004672194_sc7
Item: 1227798
Model: 3006A58A2
No reviews yet
Price is $36.59
Unit of measure 25/Pack
Free delivery by Thu, May 07
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LUX 60lbs. 4 1/8" x 9 1/2" #10 Business Envelopes, White With Silver LUX Lining, 1000/BX~#|#~m000081264_sc7
Item: 388426
Model: FLWH4260-03-100
No reviews yet
Price is $180.59
Unit of measure 1000/Box
Free delivery by Mon, May 11
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JAM Paper 6 x 6 Square Translucent Vellum Invitation Envelopes, Primary Red, 25/Pack (PACV515)~#|#~m000068104_sc7
Item: 262243
Model: PACV515
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX 80lbs. 4 3/8" x 5 3/4" A2 RSVP, Invitation Envelopes W/Peel & Press, Black Linen, 250/BX~#|#~m000081688_sc7
Item: 384697
Model: 4870-BLI-250
No reviews yet
Price is $61.39
Unit of measure 250/Box
Free delivery by Mon, May 11
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JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Primary Yellow, 25/Pack (PACV606)~#|#~m003905183_sc7JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Primary Yellow, 25/Pack (PACV606)~#|#~m003905182_sc7
Item: 262271
Model: PACV606
No reviews yet
Price is $21.99
Unit of measure 25/Pack
Delivery by Thu, May 07
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JAM Paper 6 x 6 Square Invitation Envelopes, Black Linen, 50/Pack (V01212I)~#|#~m003905215_sc7JAM Paper 6 x 6 Square Invitation Envelopes, Black Linen, 50/Pack (V01212I)~#|#~m003905214_sc7
Item: 1588418
Model: V01212I
No reviews yet
Price is $49.99
Unit of measure 50/Pack
Free delivery by Thu, May 07
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JAM Paper 4Bar A1 Colored Invitation Envelopes, 3.625 x 5.125, Ultra Lime Green, 50/Pack (155438I)~#|#~sp131391071_sc7JAM Paper 4Bar A1 Colored Invitation Envelopes, 3.625 x 5.125, Ultra Lime Green, 50/Pack (155438I)~#|#~sp131391070_sc7
Item: 1588710
Model: 155438I
No reviews yet
Price is $15.59
Unit of measure 50/Pack
Delivery by Thu, May 07
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JAM Paper Square Envelopes, Peel & Press, 100lb Citrus Yellow, 6 1/4 x 6 1/4, 250 Pack, (8530-L20-250)~#|#~sp228873551_sc7
Item: 24578540
Model: 8530-L20-250
No reviews yet
Price is $46.59
Unit of measure 250/Pack
Free delivery by Thu, May 07
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LUX A2 (4 3/8 x 5 3/4) 500/Box, Jupiter Metallic (5370-20-500)~#|#~m000081792_sc7
Item: 515769
Model: 5370-20-500
No reviews yet
Price is $93.19
Free delivery by Mon, May 11
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JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Teal, Bulk 1000/Carton (0157463B)~#|#~m003904716_sc7JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Teal, Bulk 1000/Carton (0157463B)~#|#~m003904715_sc7
Item: 364056
Model: 0157463B
Price is $362.99
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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LUX Exclusive Moistenable Glue #10 Invitation Envelopes, 6 1/2" x 6 1/2", Garnet Red, 500/Box (EX8535-26-500)~#|#~m000081569_sc7
Item: 387393
Model: EX8535-26-500
No reviews yet
Price is $180.29
Unit of measure 500/Box
Free delivery by Mon, May 11
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JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, Bulk 250/Box (PACV504H)~#|#~m006948420_sc7JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, Bulk 250/Box (PACV504H)~#|#~m006948419_sc7
Item: 1589730
Model: PACV504H
No reviews yet
Price is $283.99
Unit of measure 250/Box
Free delivery by Thu, May 07
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JAM Paper #10 Business Colored Envelopes, 4 1/8" x 9 1/2", Orange Recycled, Bulk 1000/Carton (15860B)~#|#~sp112110495_sc7JAM Paper #10 Business Colored Envelopes, 4 1/8" x 9 1/2", Orange Recycled, Bulk 1000/Carton (15860B)~#|#~sp112110494_sc7
Item: 261242
Model: 15860B
No reviews yet
Price is $257.39
Unit of measure 1000/Carton
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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LUX 60lb 5 3/4"x8 3/4" A9 Invitation Envelopes W/Peel&Press, White/Silver, 500/BX~#|#~m000082192_sc7
Item: 513777
Model: FLWH4895-03-500
No reviews yet
Price is $148.79
Free delivery by Mon, May 11
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JAM Paper 10 x 13 Open End Catalog Metallic Envelopes, Stardream Silver, 25/Pack (v018324a)~#|#~sp12489302_sc7
Item: 24175265
Model: V018324A
No reviews yet
Price is $73.29
Unit of measure 25/Pack
Free delivery by Thu, May 07
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LUX 9 x 12 Booklet Envelopes 50/Pack, Sunflower (EX4899-12-50)~#|#~sp14807530_sc7
Item: 24260537
Model: EX4899-12-50
Price is $56.49
Unit of measure 50/Pack
Free delivery by Mon, May 11
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Gold Yellow, 25/Pack (900906635)~#|#~sp82108684_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Gold Yellow, 25/Pack (900906635)~#|#~sp82108682_sc7
JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Gold Yellow, 25/Pack (900906635) is Out of stock
Item: 261864
Model: 900906635
Price is $19.49
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.