Square Envelopes

JAM Paper A2 Colored Invitation Envelopes, 4.375 x 5.75, Sea Blue Recycled, 50/Pack (70207I)~#|#~sp123308096_sc7JAM Paper A2 Colored Invitation Envelopes, 4.375 x 5.75, Sea Blue Recycled, 50/Pack (70207I)~#|#~sp123308095_sc7
Item: 1589479
Model: 70207I
No reviews yet
Price is $20.49
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX 5 3/4" x 8 3/4" 80lbs. A9 Invitation Envelopes W/Peel & Press, Seafoam Blue~#|#~m000082179_sc7
Item: 282944
Model: LUX-4895-113-50
No reviews yet
Price is $33.19
Unit of measure 50/Pack
Delivery by Mon, May 11
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LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, White w/Silver LUX Lining (FLWH4872-03-50)~#|#~m004940488_sc7LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, White w/Silver LUX Lining (FLWH4872-03-50)~#|#~m005823930_sc7
Item: 282575
Model: FLWH4872-03-50
Price is $15.99
Unit of measure 50/Pack
Delivery by Mon, May 11
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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 $99.19
Unit of measure 250/Box
Free delivery by Mon, May 11
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LUX 7 x 7 Square Envelopes, 50/Box, Navy (LUX-8545-103-50)~#|#~m000081531_sc7
Item: 282285
Model: LUX-8545-103-50
No reviews yet
Price is $31.29
Unit of measure 50/Pack
Delivery by Mon, May 11
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 1000/Box, Silver Metallic (5375-06-1000)~#|#~m000081736_sc7
Item: 385199
Model: 5375-06-1000
No reviews yet
Price is $216.89
Unit of measure 1000/Box
Free delivery by Mon, May 11
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JAM Paper A6 Colored Invitation Envelopes, 4.75 x 6.5, Sea Blue Recycled, 50/Pack (15903I)~#|#~sp129636672_sc7JAM Paper A6 Colored Invitation Envelopes, 4.75 x 6.5, Sea Blue Recycled, 50/Pack (15903I)~#|#~sp129636727_sc7
Item: 1588927
Model: 15903I
No reviews yet
Price is $20.49
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper Kraft A7 Invitation Envelopes, 5.25 x 7.25, Brown Kraft Paper Bag, Bulk 250/Box (LEKR700H)~#|#~m004672451_sc7JAM Paper Kraft A7 Invitation Envelopes, 5.25 x 7.25, Brown Kraft Paper Bag, Bulk 250/Box (LEKR700H)~#|#~m004672450_sc7
Item: 1590174
Model: LEKR700H
No reviews yet
Price is $89.49
Unit of measure 250/Box
Free delivery by Wed, May 06
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LUX Self Seal Booklet Envelope, 6" x 9", Natural, 500/Pack (6025-01-500)~#|#~sp14807416_sc7
Item: 24261161
Model: 6025-01-500
No reviews yet
Price is $95.49
Unit of measure 500/Pack
Free delivery by Mon, May 11
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LUX 7" x 10" Kraft Open End - 24lb. Brown Kraft 250/Pack, 24lb. Brown Kraft (WS-4752-250)~#|#~DF10C4E9-AB89-4B1C-BF4720D58E85A821_sc7LUX 7" x 10" Kraft Open End - 24lb. Brown Kraft 250/Pack, 24lb. Brown Kraft (WS-4752-250)~#|#~8AA85D7B-2D01-448D-946394E896D1364F_sc7
Item: 23995646
Model: WS-4752-250
No reviews yet
Price is $75.09
Unit of measure 250/Pack
Free delivery by Mon, May 11
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JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", Dark Grey, 25/Pack (36396445)~#|#~m004671983_sc7JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", Dark Grey, 25/Pack (36396445)~#|#~m004671982_sc7
Item: 261458
Model: 36396445
Price is $14.89
Unit of measure 25/Pack
Delivery by Wed, May 06
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JAM Paper 6.5 x 6.5 Square Invitation Envelopes, Tan Brown, 25/Pack (227914986)~#|#~sp4808507_sc7
Item: 2632863
Model: 227914986
Price is $25.99
Unit of measure 25/Pack
Delivery by Wed, May 06
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JAM Paper 4Bar A1 Colored Invitation Envelopes, 3.625 x 5.125, Blue Recycled, 50/Pack (15805I)~#|#~m003904517_sc7JAM Paper 4Bar A1 Colored Invitation Envelopes, 3.625 x 5.125, Blue Recycled, 50/Pack (15805I)~#|#~m003904516_sc7
Item: 1588769
Model: 15805I
No reviews yet
Price is $16.19
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Baby Blue, Bulk 1000/Carton (155699B)~#|#~m003904710_sc7JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Baby Blue, Bulk 1000/Carton (155699B)~#|#~m003904709_sc7
Item: 261373
Model: 155699B
No reviews yet
Price is $290.99
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Orange Recycled, 100/Pack (356730538B)~#|#~m003757861_sc7JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Orange Recycled, 100/Pack (356730538B)~#|#~m003750592_sc7
Item: 2103475
Model: 356730538B
No reviews yet
Price is $35.49
Unit of measure 100/Pack
Free delivery by Wed, May 06
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JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Orange Recycled, 25/Pack (356730548)~#|#~m003757870_sc7JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Orange Recycled, 25/Pack (356730548)~#|#~m003750595_sc7
Item: 2103448
Model: 356730548
No reviews yet
Price is $11.49
Unit of measure 25/Pack
Delivery by Wed, May 06
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JAM Paper 3.875 x 8.125 Foil Lined Invitation Envelopes, White with Silver Foil, 25/Pack (32430263)~#|#~m004542975_sc7JAM Paper 3.875 x 8.125 Foil Lined Invitation Envelopes, White with Silver Foil, 25/Pack (32430263)~#|#~m004542974_sc7
Item: 2329309
Model: 32430263
No reviews yet
Price is $12.49
Unit of measure 25/Pack
Delivery by Wed, May 06
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LUX #1 Coin Envelopes (2 1/4 x 3 1/2) 500/Box, Mandarin (LUX-1CO-11-500)~#|#~m001149696_sc7
Item: 1029981
Model: LUX-1CO-11-500
No reviews yet
Price is $109.69
Free delivery by Mon, May 11
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JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Midnight Black, 500 Pack, Black (F-8555-B-500)~#|#~sp226423848_sc7JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Midnight Black, 500 Pack, Black (F-8555-B-500)~#|#~sp226423847_sc7
Item: 24578625
Model: F-8555-B-500
No reviews yet
Price is $107.99
Unit of measure 500/Pack
Free delivery by Wed, May 06
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LUX 5 1/2 x 5 1/2 Square Envelopes, 1000/Box, 70lb. Bright White (10902-1000)~#|#~m000081469_sc7
Item: 516617
Model: 10902-1000
Price is $146.89
Free delivery by Mon, May 11
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JAM Paper Peel & Seal #10 Business Envelope, 4 1/8" x 9 1/2", Christmas Green, 500/Pack (86555H)~#|#~6D72CF40-FFBC-49D2-943889305B5B19A6_sc7
Item: 1589639
Model: 86555H
No reviews yet
Price is $144.39
Unit of measure 500/Box
Free delivery by Wed, May 06
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JAM Paper Self Seal Invitation Envelopes, 5 1/4" x 5 1/4", Midnight Black, 50/Pack (LUX-8510-B-50)~#|#~sp225303105_sc7JAM Paper Self Seal Invitation Envelopes, 5 1/4" x 5 1/4", Midnight Black, 50/Pack (LUX-8510-B-50)~#|#~sp225303104_sc7
Item: 24578545
Model: LUX-8510-B-50
No reviews yet
Price is $14.99
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper Plastic Envelopes with Button and String Tie Closure, Large Booklet, 12 x 18, Blue, 12/Pack (457B1BU)~#|#~sp89840132_sc7JAM Paper Plastic Envelopes with Button and String Tie Closure, Large Booklet, 12 x 18, Blue, 12/Pack (457B1BU)~#|#~sp89839854_sc7
Item: 262974
Model: 457B1BU
Price is $68.69
Unit of measure 12/Pack Price per unit $5.72/Envelope
Free delivery by Wed, May 06
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 500/Box, 70lb. Bright White (20743-500)~#|#~m000082124_sc7
Item: 515434
Model: 20743-500
Price is $113.79
Free delivery by Mon, May 11
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JAM Paper 6 x 6 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, Bulk 250/Box (PACV514H)~#|#~m006948422_sc7JAM Paper 6 x 6 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, Bulk 250/Box (PACV514H)~#|#~m006948421_sc7
Item: 1589729
Model: PACV514H
No reviews yet
Price is $283.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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JAM Paper Open End #13 Catalog Envelope, 10" x 13", White, 1000/Carton (01623199B)~#|#~sp61031372_sc7JAM Paper Open End #13 Catalog Envelope, 10" x 13", White, 1000/Carton (01623199B)~#|#~sp137086238_sc7
Item: 367153
Model: 01623199B
No reviews yet
Price is $358.89
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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JAM Paper A2 Foil Lined Invitation Envelopes, 4.375 x 5.75, White with Red Foil, 50/Pack (72158I)~#|#~m003904622_sc7JAM Paper A2 Foil Lined Invitation Envelopes, 4.375 x 5.75, White with Red Foil, 50/Pack (72158I)~#|#~m003904621_sc7
Item: 1588942
Model: 72158I
No reviews yet
Price is $19.49
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Silver Metallic (5380-06-250)~#|#~m005902308_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Silver Metallic (5380-06-250)~#|#~m000081736_sc7
Item: 515748
Model: 5380-06-250
Price is $63.29
Free delivery by Mon, May 11
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JAM Paper 9 x 12 Booklet Colored Envelopes, Orange Recycled, 100/Pack (5156772c)~#|#~sp4211420_sc7JAM Paper 9 x 12 Booklet Colored Envelopes, Orange Recycled, 100/Pack (5156772c)~#|#~sp4211419_sc7
Item: 2478144
Model: 5156772C
No reviews yet
Price is $59.89
Unit of measure 100/Pack
Free delivery by Wed, May 06
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LUX A7 Foil Lined Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, Black w/Gold LUX Lining (FLBK4880-04-500)~#|#~m000082007_sc7
Item: 513931
Model: FLBK4880-04-500
No reviews yet
Price is $164.99
Free delivery by Mon, May 11
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JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Black, 12/Pack (921B1BL)~#|#~m005744815_sc7JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Black, 12/Pack (921B1BL)~#|#~m000067462_sc7
Item: 263041
Model: 921B1BL
Price is $41.99
Unit of measure 12/Pack Price per unit $3.50/Envelope
Free delivery by Wed, May 06
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JAM Paper 9 x 12 Metallic Booklet Envelopes, Stardream Gold, 50/Pack (v018321i)~#|#~sp131391297_sc7JAM Paper 9 x 12 Metallic Booklet Envelopes, Stardream Gold, 50/Pack (v018321i)~#|#~sp131391296_sc7
JAM Paper 9 x 12 Metallic Booklet Envelopes, Stardream Gold, 50/Pack (v018321i) is Out of stock
Item: 2477994
Model: V018321I
No reviews yet
Price is $127.79
Unit of measure 50/Pack
LUX A2 (4 3/8 x 5 3/4) 50/Box, Azalea Metallic (5370-24-50)~#|#~m000081766_sc7
LUX A2 (4 3/8 x 5 3/4) 50/Box, Azalea Metallic (5370-24-50) is Out of stock
Item: 282432
Model: 5370-24-50
No reviews yet
Price is $12.69
Unit of measure 50/Pack
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
LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes, Quartz Metallic, 50/Pack is Out of stock
Item: 281930
Model: 5360-08-50
Price is $28.19
Unit of measure 50/Pack
JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Dark Red, 50/Pack (31511321I)~#|#~m002934222_sc7JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Dark Red, 50/Pack (31511321I)~#|#~m002934221_sc7
JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Dark Red, 50/Pack (31511321I) is Out of stock
Item: 1588733
Model: 31511321I
No reviews yet
Price is $34.09
Unit of measure 50/Pack
JAM Paper 4Bar A1 Parchment Invitation Envelopes, 3.625 x 5.125, Antique Gold Recycled, 25/Pack (90090522)~#|#~m004671992_sc7JAM Paper 4Bar A1 Parchment Invitation Envelopes, 3.625 x 5.125, Antique Gold Recycled, 25/Pack (90090522)~#|#~m004671991_sc7
JAM Paper 4Bar A1 Parchment Invitation Envelopes, 3.625 x 5.125, Antique Gold Recycled, 25/Pack (90090522) is Out of stock
Item: 261860
Model: 90090522
No reviews yet
Price is $10.89
Unit of measure 25/Pack
LUX 80lb 4 1/8"x9 1/2" Square Flap #10 Envelopes, Natural, 500/BX~#|#~m000161374_sc7
LUX 80lb 4 1/8"x9 1/2" Square Flap #10 Envelopes, Natural, 500/BX is Out of stock
Item: 513623
Model: 4860-NPC-500
No reviews yet
Price is $89.59
Unit of measure 500/Box
JAM Paper #10 Business Translucent Vellum Envelopes, 4.125 x 9.5, Primary Yellow, 50/Pack (PACV356I)~#|#~m002169008_sc7
JAM Paper #10 Business Translucent Vellum Envelopes, 4.125 x 9.5, Primary Yellow, 50/Pack (PACV356I) is Out of stock
Item: 1588554
Model: PACV356I
No reviews yet
Price is $50.89
Unit of measure 50/Pack
JAM Paper Self Seal #6 Coin Business Envelopes, 3 3/8" x 6", White, 50/Pack (356838557I)~#|#~15A7B429-AAAF-46EC-84149C411E76B846_sc7
JAM Paper Self Seal #6 Coin Business Envelopes, 3 3/8" x 6", White, 50/Pack (356838557I) is Out of stock
Item: 24557865
Model: 356838557I
No reviews yet
Price is $15.39
Unit of measure 50/Pack
LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Flame Metallic Orange, 500/BX~#|#~m004940426_sc7LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Flame Metallic Orange, 500/BX~#|#~m005823908_sc7
LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Flame Metallic Orange, 500/BX is Out of stock
Item: 385039
Model: 5360-26-500
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Price is $146.09
Unit of measure 500/Box

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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.