Square Envelopes

JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Jupiter Red, 25/Pack (SD5370 20)~#|#~m002934281_sc7JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Jupiter Red, 25/Pack (SD5370 20)~#|#~m002934280_sc7
Item: 262000
Model: SD5370 20
No reviews yet
Price is $28.29
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX #1 Coin Envelopes (2 1/4 x 3 1/2) 250/Pack, Garnet (LUX-1CO-26-250)~#|#~sp14807833_sc7
Item: 24261086
Model: LUX-1CO-26-250
No reviews yet
Price is $37.99
Unit of measure 250/Pack
Free delivery by Mon, May 11
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JAM Paper 10 x 13 Open End Catalog Envelopes, Dark Purple, 100/Pack (1287032f)~#|#~sp4800483_sc7JAM Paper 10 x 13 Open End Catalog Envelopes, Dark Purple, 100/Pack (1287032f)~#|#~sp4800482_sc7
Item: 2633140
Model: 1287032F
No reviews yet
Price is $127.89
Unit of measure 100/Pack
Free delivery by Thu, May 07
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JAM Paper 5 x 5 Square Translucent Vellum Invitation Envelopes, Clear, 25/Pack (31032)~#|#~m006965543_sc7JAM Paper 5 x 5 Square Translucent Vellum Invitation Envelopes, Clear, 25/Pack (31032)~#|#~m006965542_sc7
Item: 263975
Model: 31032
No reviews yet
Price is $25.99
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX A6 Foil Lined Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, White w/Gold LUX Lining (FLWH4875-04-50)~#|#~m000081967_sc7
Item: 282679
Model: FLWH4875-04-50
No reviews yet
Price is $17.49
Unit of measure 50/Pack
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 A6 Foil Lined Invitation Envelopes, 4.75 x 6.5, White with Silver Foil, 50/Pack (82927I)~#|#~m004671873_sc7JAM Paper A6 Foil Lined Invitation Envelopes, 4.75 x 6.5, White with Silver Foil, 50/Pack (82927I)~#|#~m004671872_sc7
Item: 1588831
Model: 82927I
No reviews yet
Price is $20.49
Unit of measure 50/Pack
Delivery by Thu, May 07
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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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JAM Paper Kraft A2 Invitation Envelopes, 4.375 x 5.75, Brown Kraft Paper Bag, Bulk 250/Box (LEKR600H)~#|#~sp112110412_sc7JAM Paper Kraft A2 Invitation Envelopes, 4.375 x 5.75, Brown Kraft Paper Bag, Bulk 250/Box (LEKR600H)~#|#~sp112110411_sc7
Item: 1589280
Model: LEKR600H
Price is $85.09
Unit of measure 250/Box
Free delivery by Thu, May 07
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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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JAM Paper 10 x 15 Open End Catalog Envelopes, White, Bulk 1000/Carton (01623200B)~#|#~sp61031462_sc7JAM Paper 10 x 15 Open End Catalog Envelopes, White, Bulk 1000/Carton (01623200B)~#|#~sp61031302_sc7
Item: 24006123
Model: 01623200B
No reviews yet
Price is $452.99
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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JAM Paper A10 Colored Invitation Envelopes, 6" x 9.5", Green Recycled, 50/Pack (35633I)~#|#~sp132864393_sc7JAM Paper A10 Colored Invitation Envelopes, 6" x 9.5", Green Recycled, 50/Pack (35633I)~#|#~sp132864392_sc7
Item: 1588764
Model: 35633I
No reviews yet
Price is $37.79
Unit of measure 50/Pack
Free delivery by Thu, May 07
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JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Ultra Fuchsia Pink, Bulk 1000/Carton (1526767C)~#|#~m003184166_sc7
Item: 2102936
Model: 1526767C
No reviews yet
Price is $301.99
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 250/Box, Holiday Red (4872-R-250)~#|#~m000081860_sc7
Item: 516233
Model: 4872-R-250
No reviews yet
Price is $50.59
Free delivery by Mon, May 11
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LUX 5 1/2 x 5 1/2 Square Envelopes, 50/Box, Mandarin (EX8515-11-50)~#|#~m000081488_sc7
Item: 282119
Model: EX8515-11-50
No reviews yet
Price is $26.09
Unit of measure 50/Pack
Delivery by Mon, May 11
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LUX 4 1/8" x 9 1/2" #10 80lbs. Open End Envelopes, Pool Blue, 50/Pack~#|#~m000081280_sc7
Item: 281891
Model: LUX-7716-102-50
Price is $55.09
Unit of measure 50/Pack
Free delivery by Mon, May 11
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Lux Double Window Invoice Envelopes, 4 1/8 x 9 1/2, Midnight Black 250/Pack~#|#~m002084696_sc7
Item: 1559034
Model: INVDW-B-250
Price is $63.49
Free delivery by Mon, May 11
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JAM Paper 9 x 12 Booklet Colored Envelopes, Orange Recycled, 50/Pack (5156772i)~#|#~sp4211420_sc7JAM Paper 9 x 12 Booklet Colored Envelopes, Orange Recycled, 50/Pack (5156772i)~#|#~sp4211419_sc7
Item: 2478038
Model: 5156772I
No reviews yet
Price is $48.59
Unit of measure 50/Pack
Free delivery by Thu, May 07
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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 Mon, May 11
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LUX 80lbs. 4 1/8" x 9 1/2" #10 Open End Envelopes, Bright White, 1000/BX (7535-1000)~#|#~DB7F205D-9E6A-46E0-8491E1C84AEFDB14_sc7LUX 80lbs. 4 1/8" x 9 1/2" #10 Open End Envelopes, Bright White, 1000/BX (7535-1000)~#|#~22EEA5ED-E9AD-40AE-B3AF07777DC2DF1A_sc7
Item: 385671
Model: 7535-1000
No reviews yet
Price is $215.59
Unit of measure 1000/Box
Free delivery by Mon, May 11
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 12.4375 x 18.25, Clear, 1000/Carton (12.518.25CELLOB)~#|#~A771D261-D04D-46D1-A6D49D8066566390_sc7
Item: 262939
Model: 12.518.25CELLOB
No reviews yet
Price is $934.99
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Holiday Green (FE4280-12-250)~#|#~m005902339_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Holiday Green (FE4280-12-250)~#|#~m005823952_sc7
Item: 387843
Model: FE4280-12-250
No reviews yet
Price is $40.89
Unit of measure 250/Box
Free delivery by Mon, May 11
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LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Wisteria Purple, 250/BX~#|#~m004940493_sc7LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Wisteria Purple, 250/BX~#|#~m005824014_sc7
Item: 388501
Model: LUX-4860-106-25
No reviews yet
Price is $77.99
Unit of measure 250/Box
Free delivery by Mon, May 11
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LUX #10 Full Face Window Envelopes (4 1/8 x 9 1/2) 500/Pack, 80lb. White (FFW-10-80W-500)~#|#~sp12274947_sc7LUX #10 Full Face Window Envelopes (4 1/8 x 9 1/2) 500/Pack, 80lb. White (FFW-10-80W-500)~#|#~sp12275015_sc7
Item: 24161925
Model: FFW-10-80W-500
No reviews yet
Price is $124.89
Unit of measure 500/Pack
Free delivery by Mon, May 11
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 9.25 x 9.25, Clear, 100/Pack (9.25X9.25CELLO)~#|#~m006948449_sc7
Item: 262912
Model: 9.25X9.25CELLO
No reviews yet
Price is $66.69
Unit of measure 100/Pack
Free delivery by Thu, May 07
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JAM Paper A10 Colored Invitation Envelopes, 6 x 9.5, Green Recycled, Bulk 1000/Carton (35633B)~#|#~sp132863817_sc7JAM Paper A10 Colored Invitation Envelopes, 6 x 9.5, Green Recycled, Bulk 1000/Carton (35633B)~#|#~sp132863816_sc7
Item: 261285
Model: 35633B
No reviews yet
Price is $399.49
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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LUX 6 1/2 x 6 1/2 Square Envelopes, 500/Box, 70lb. Bright White (10928-500)~#|#~m000081546_sc7
Item: 516530
Model: 10928-500
No reviews yet
Price is $103.09
Free delivery by Mon, May 11
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JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Gold, 50/Pack (GCST608I)~#|#~m003905132_sc7JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Gold, 50/Pack (GCST608I)~#|#~m003905131_sc7
Item: 1589059
Model: GCST608I
No reviews yet
Price is $46.19
Unit of measure 50/Pack
Free delivery by Thu, May 07
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LUX 80lb 5 3/4"x8 3/4" A9 Invitation Envelopes W/Peel&Press, Midnight Black, 500/BX~#|#~m000081720_sc7
Item: 514099
Model: F-4595-B-500
No reviews yet
Price is $120.79
Free delivery by Mon, May 11
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 250/Box, Quartz Metallic (5365-08-250)~#|#~1D521796-EDB3-4EE0-9B854A228DA4CC19_sc7LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 250/Box, Quartz Metallic (5365-08-250)~#|#~A2F6EA33-59B7-4B7C-9E069FD153B2B86C_sc7
Item: 385068
Model: 5365-08-250
No reviews yet
Price is $65.29
Unit of measure 250/Box
Free delivery by Mon, May 11
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JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Baby Pink, 50/Pack (155698I)~#|#~sp132864380_sc7JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Baby Pink, 50/Pack (155698I)~#|#~sp132864379_sc7
Item: 1588734
Model: 155698I
Price is $32.29
Unit of measure 50/Pack
Delivery by Thu, May 07
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LUX 6 x 6 Square Envelopes 50/Pack, Wisteria (LUX-8525-106-50)~#|#~sp14807808_sc7
Item: 24260427
Model: LUX-8525-106-50
Price is $13.09
Unit of measure 50/Pack
Delivery by Mon, May 11
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JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Ultra Lime Green, 50/Pack (356730546I)~#|#~sp131391167_sc7JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Ultra Lime Green, 50/Pack (356730546I)~#|#~sp131391166_sc7
Item: 2329353
Model: 356730546I
No reviews yet
Price is $30.59
Unit of measure 50/Pack
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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 8.5 x 8.5 Square Invitation Envelopes, Black Linen, 25/Pack (V01214)~#|#~m003905219_sc7JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Black Linen, 25/Pack (V01214)~#|#~m003905218_sc7
JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Black Linen, 25/Pack (V01214) is Out of stock
Item: 261580
Model: V01214
No reviews yet
Price is $25.99
Unit of measure 25/Pack
LUX 70lb 4 1/8"x9 1/2" Square Flap Linen Envelopes, White, 500/BX~#|#~m000161371_sc7
LUX 70lb 4 1/8"x9 1/2" Square Flap Linen Envelopes, White, 500/BX is Out of stock
Item: 513618
Model: 4860-WLI-500
No reviews yet
Price is $110.09
LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Candy Pink (EX4875-14-50)~#|#~m000081902_sc7
LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Candy Pink (EX4875-14-50) is Out of stock
Item: 282597
Model: EX4875-14-50
Price is $14.49
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.