Square Envelopes

LUX #10 All Purpose Window EnvelopesEnvelopes(4 1/8 x 9 1/2) 50/Pack, 80lb. Navy (LUX-10APW-10350)~#|#~sp5822112_sc7LUX #10 All Purpose Window EnvelopesEnvelopes(4 1/8 x 9 1/2) 50/Pack, 80lb. Navy (LUX-10APW-10350)~#|#~sp5875507_sc7
Item: 23995473
Model: LUX-10APW-10350
No reviews yet
Price is $20.59
Unit of measure 50/Pack
Delivery by Thu, May 07
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JAM Paper A9 Foil Lined Invitation Envelopes, 5.75 x 8.75, White with Red Foil, 50/Pack (76798I)~#|#~m003904630_sc7JAM Paper A9 Foil Lined Invitation Envelopes, 5.75 x 8.75, White with Red Foil, 50/Pack (76798I)~#|#~m003904629_sc7
Item: 1588719
Model: 76798I
Price is $31.49
Unit of measure 50/Pack
Delivery by Tue, May 05
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JAM Paper® #1 Coin Business Colored Envelopes, 2.25 x 3.5, Blue Recycled, 100/Pack (352727818F)~#|#~sp123307716_sc7JAM Paper® #1 Coin Business Colored Envelopes, 2.25 x 3.5, Blue Recycled, 100/Pack (352727818F)~#|#~sp123307624_sc7
Item: 24364869
Model: 352727818F
No reviews yet
Price is $38.49
Unit of measure 100/Pack
Free delivery by Tue, May 05
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JAM Paper 6.5 x 6.5 Square Invitation Envelopes, White, 25/Pack (28417)~#|#~sp129636458_sc7JAM Paper 6.5 x 6.5 Square Invitation Envelopes, White, 25/Pack (28417)~#|#~sp129636457_sc7
Item: 261303
Model: 28417
Price is $25.89
Unit of measure 25/Pack
Delivery by Tue, May 05
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LUX #10 (4 1/8" x 9 1/2") Window Envelopes, Pastel Blue, 250/BX~#|#~213CD23A-76A1-4311-BA9BFC4055FB7B3E_sc7
Item: 383922
Model: 11816-250
No reviews yet
Price is $46.59
Unit of measure 250/Box
Free delivery by Thu, May 07
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Taupe Metallic (5380-M09-50)~#|#~m005902320_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Taupe Metallic (5380-M09-50)~#|#~m005823888_sc7
Item: 2146116
Model: 5380-M09-50
No reviews yet
Price is $46.89
Unit of measure 50/Pack
Free delivery by Thu, May 07
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Candy Pink (EX4865-14-50)~#|#~m000081693_sc7
Item: 282355
Model: EX4865-14-50
No reviews yet
Price is $13.69
Unit of measure 50/Pack
Delivery by Thu, May 07
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Quality Park Kraft Button & String Inter-Departmental Envelope 10" x 13", Brown, 100/Box (QUA63562)~#|#~sp42179896_sc7Quality Park Kraft Button & String Inter-Departmental Envelope 10" x 13", Brown, 100/Box (QUA63562)~#|#~sp42179895_sc7
Item: 377355
Model: QUA63562
Price is $104.29
Unit of measure 100/Box
Free Next-Day eligible by tomorrow
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LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Navy w/Gold LUX Lining (FLNV4872-04-50)~#|#~m004940483_sc7LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Navy w/Gold LUX Lining (FLNV4872-04-50)~#|#~m005823923_sc7
Item: 282557
Model: FLNV4872-04-50
No reviews yet
Price is $32.79
Unit of measure 50/Pack
Delivery by Thu, May 07
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JAM Paper #1 Coin Business Colored Envelopes, 2.25 x 3.5, Ultra Lime Green, 50/Pack (352827826I)~#|#~sp132864623_sc7JAM Paper #1 Coin Business Colored Envelopes, 2.25 x 3.5, Ultra Lime Green, 50/Pack (352827826I)~#|#~sp132864622_sc7
Item: 2329396
Model: 352827826I
No reviews yet
Price is $17.09
Unit of measure 50/Pack
Delivery by Tue, May 05
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JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Smoke Gray, 12/Pack (921B1SM)~#|#~m005744908_sc7JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Smoke Gray, 12/Pack (921B1SM)~#|#~m000068429_sc7
Item: 262957
Model: 921B1SM
No reviews yet
Price is $34.49
Unit of measure 12/Pack Price per unit $2.87/Envelope
Delivery by Tue, May 05
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LUX Self Seal Security Tinted A2 Window Envelope, 4 3/8" x 5 3/4", White, 500/Pack (7486-W2-500)~#|#~sp14807383_sc7
Item: 24260594
Model: 7486-W2-500
Price is $107.39
Unit of measure 500/Pack
Free delivery by Thu, May 07
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LUX Self Seal Window Envelope, 6" x 9", Bright White, 1000/Pack (FFW-69-1000)~#|#~sp14807375_sc7
Item: 24260636
Model: FFW-69-1000
No reviews yet
Price is $241.49
Unit of measure 1000/Pack
Free delivery by Thu, May 07
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LUX 6" x 9" Open End Clasp Envelopes, Midnight Black, 100/Pack (87915-50)~#|#~42AE1419-DD74-49E4-BC409BD28F387D60_sc7
Item: 282275
Model: 87915-100
Price is $99.29
Unit of measure 100/Pack
Free delivery by Thu, May 07
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JAM Paper #6 Coin Business Envelopes, 3.375 x 6, White, 50/Pack (1623184i)~#|#~sp115352133_sc7JAM Paper #6 Coin Business Envelopes, 3.375 x 6, White, 50/Pack (1623184i)~#|#~sp115352132_sc7
Item: 2633116
Model: 1623184I
No reviews yet
Price is $12.49
Unit of measure 50/Pack
Delivery by Tue, May 05
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JAM Paper A7 Metallic Invitation Envelopes, 5.25 x 7.25, Stardream Gold, 25/Pack (GCST708)~#|#~m003905144_sc7JAM Paper A7 Metallic Invitation Envelopes, 5.25 x 7.25, Stardream Gold, 25/Pack (GCST708)~#|#~m003905143_sc7
Item: 261968
Model: GCST708
No reviews yet
Price is $29.89
Unit of measure 25/Pack
Delivery by Tue, May 05
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LUX 5 3/4" x 8 3/4" 60lbs. Square Flap Envelopes W/Peel & Press, White/Black LUX Lining~#|#~m000082189_sc7
Item: 282955
Model: FLWH4895-02-50
No reviews yet
Price is $21.29
Unit of measure 50/Pack
Delivery by Thu, May 07
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JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Sunflower, 50 Pack, Yellow (EX8555-12-50)~#|#~sp228873560_sc7
Item: 24578550
Model: EX8555-12-50
No reviews yet
Price is $14.89
Unit of measure 50/Pack
Delivery by Tue, May 05
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JAM Paper A10 Strathmore Invitation Envelopes, 6 x 9.5, Bright White Wove, 50/Pack (191220I)~#|#~m007159183_sc7JAM Paper A10 Strathmore Invitation Envelopes, 6 x 9.5, Bright White Wove, 50/Pack (191220I)~#|#~m007159182_sc7
Item: 1588774
Model: 191220I
No reviews yet
Price is $31.29
Unit of measure 50/Pack
Delivery by Tue, May 05
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 50/Box, 80lb. Bright White (FE4585-05-50)~#|#~m000082125_sc7
Item: 282877
Model: FE4585-05-50
No reviews yet
Price is $32.29
Unit of measure 50/Pack
Delivery by Thu, May 07
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LUX 10 x 15 Open End Envelopes 50/Pack, 28lb. Bright White (4162-50)~#|#~sp14807520_sc7
Item: 24260236
Model: 4162-50
No reviews yet
Price is $40.69
Unit of measure 50/Pack
Free delivery by Thu, May 07
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LUX 4 3/8" x 5 3/4" 80lbs. A2 Invitation Envelopes W/Glue, Aquamarine Metallic, 50/Pack~#|#~m000081684_sc7
Item: 282430
Model: 5370-02-50
No reviews yet
Price is $18.95
Unit of measure 50/Pack
Delivery by Thu, May 07
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JAM Paper® Plastic Envelopes with Hook & Loop Closure, Letter Booklet, 9.75 x 13, Purple, 12/Pack (218V0PU)~#|#~m005745043_sc7JAM Paper® Plastic Envelopes with Hook & Loop Closure, Letter Booklet, 9.75 x 13, Purple, 12/Pack (218V0PU)~#|#~m005745042_sc7
Item: 263532
Model: 218V0PU
Price is $32.19
Unit of measure 12/Pack Price per unit $2.68/Envelope
Delivery by Tue, May 05
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LUX A2 (4 3/8 x 5 3/4) 500/Box, Ruby Red (EX4870-18-500)~#|#~m000081820_sc7
Item: 514410
Model: EX4870-18-500
No reviews yet
Price is $103.49
Free delivery by Thu, May 07
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JAM Paper A6 Foil Lined Invitation Envelopes, 4.75 x 6.5, Black Linen with Gold Foil, 25/Pack (3243678)~#|#~m002934336_sc7JAM Paper A6 Foil Lined Invitation Envelopes, 4.75 x 6.5, Black Linen with Gold Foil, 25/Pack (3243678)~#|#~m002934337_sc7
Item: 262742
Model: 3243678
No reviews yet
Price is $20.49
Unit of measure 25/Pack
Delivery by Tue, May 05
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JAM Paper #6 Coin Business Envelopes, 3.375 x 6, White, Bulk 250/Box (1623184H)~#|#~sp115352133_sc7JAM Paper #6 Coin Business Envelopes, 3.375 x 6, White, Bulk 250/Box (1623184H)~#|#~sp115352132_sc7
Item: 1590090
Model: 1623184H
Price is $45.19
Unit of measure 250/Box
Free delivery by Tue, May 05
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LUX Square Envelopes, 9" x 9", Silver Metallic, 500 Envelopes (8585-06-500)~#|#~m003307876_sc7
Item: 1985032
Model: 8585-06-500
No reviews yet
Price is $176.89
Unit of measure 500/Box
Free delivery by Thu, May 07
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JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Navy Blue, 50/Pack (LEBA317I)~#|#~m003905148_sc7JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Navy Blue, 50/Pack (LEBA317I)~#|#~m003905147_sc7
Item: 1588600
Model: LEBA317I
No reviews yet
Price is $22.99
Unit of measure 50/Pack
Delivery by Tue, May 05
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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 $103.69
Unit of measure 500/Pack
Free delivery by Thu, May 07
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LUX Self Seal Window Envelope, 6" x 9", Bright White, 500/Pack (22646-500)~#|#~sp14807418_sc7
Item: 24261215
Model: 22646-500
Price is $90.49
Unit of measure 500/Pack
Free delivery by Thu, May 07
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LUX Business Envelope, 3 1/4" x 7", White, 250/Box (SDI-24WW-250)~#|#~m003307906_sc7
Item: 1985104
Model: SDI-24WW-250
No reviews yet
Price is $47.79
Unit of measure 250/Box
Free delivery by Thu, May 07
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JAM Paper #6 Coin Business Envelopes, 3.375 x 6, Black, 25/Pack (356730564)~#|#~m003757876_sc7JAM Paper #6 Coin Business Envelopes, 3.375 x 6, Black, 25/Pack (356730564)~#|#~m003562856_sc7
Item: 2103402
Model: 356730564
No reviews yet
Price is $11.49
Unit of measure 25/Pack
Delivery by Tue, May 05
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JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, Baby Pink, 50/Pack (155623I)~#|#~sp132864308_sc7JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, Baby Pink, 50/Pack (155623I)~#|#~sp132864307_sc7
Item: 1589472
Model: 155623I
Price is $22.19
Unit of measure 50/Pack
Delivery by Tue, May 05
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JAM Paper 9 x 12 Booklet Envelopes, Baby Pink, 100/Pack (31512738c)~#|#~sp4211410_sc7JAM Paper 9 x 12 Booklet Envelopes, Baby Pink, 100/Pack (31512738c)~#|#~sp4211409_sc7
Item: 2478072
Model: 31512738C
No reviews yet
Price is $83.99
Unit of measure 100/Pack
Free delivery by Tue, May 05
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JAM Paper 7 1/2 x 7 1/2 Square Envelopes, Smoke Gray, 250 Pack (EX8555-22-250)~#|#~sp228873507_sc7
Item: 24578452
Model: EX8555-22-250
No reviews yet
Price is $46.59
Unit of measure 250/Pack
Free delivery by Tue, May 05
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80 lb 5 3/4" x 5 3/4" Recycled Peel & Press Square Envelopes, White, 500/Box~#|#~m001149702_sc7
80 lb 5 3/4" x 5 3/4" Recycled Peel & Press Square Envelopes, White, 500/Box is Out of stock
Item: 1028575
Model: 8520-WPC-500
No reviews yet
Price is $96.19
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
LUX 70lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Natural, 250/BX~#|#~m004940398_sc7LUX 70lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Natural, 250/BX~#|#~m005823989_sc7
LUX 70lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Natural, 250/BX is Out of stock
Item: 384601
Model: 4860-NPC-250
No reviews yet
Price is $102.49
Unit of measure 250/Box
JAM Paper A6 Parchment Invitation Envelopes, 4.75 x 6.5, Natural Recycled, 25/Pack (34926)~#|#~sp137086009_sc7
JAM Paper A6 Parchment Invitation Envelopes, 4.75 x 6.5, Natural Recycled, 25/Pack (34926) is Out of stock
Item: 263957
Model: 34926
No reviews yet
Price is $10.89
Unit of measure 25/Pack
JAM Paper A6 Translucent Vellum Invitation Envelopes, 4.75 x 6.5, Clear, 25/Pack (13756)~#|#~sp123307992_sc7JAM Paper A6 Translucent Vellum Invitation Envelopes, 4.75 x 6.5, Clear, 25/Pack (13756)~#|#~sp123307991_sc7
JAM Paper A6 Translucent Vellum Invitation Envelopes, 4.75 x 6.5, Clear, 25/Pack (13756) is Out of stock
Item: 263974
Model: 13756
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Price is $20.49
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.