LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 250/Box, Natural - 100% Recycled (4865-NPC-250)~#|#~m000081723_sc7
Item: 384667
Model: 4865-NPC-250
No reviews yet
Price is $46.69
Unit of measure 250/Box
Free delivery by Tue, Dec 23
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LUX 4 3/4" x 6 1/2" A6 Invitation Envelopes W/Peel & Press, White/Silver LUX, 1000/BX~#|#~m000081969_sc7
Item: 388447
Model: FLWH4875-03-100
No reviews yet
Price is $266.79
Unit of measure 1000/Box
Free delivery by Tue, Dec 23
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LUX A2 (4 3/8 x 5 3/4) 500/Box, 70lb. Bright White (20446-500)~#|#~m000161389_sc7
Item: 516529
Model: 20446-500
Price is $107.59
Free delivery by Tue, Dec 23
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JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Primary Yellow, Bulk 250/Box (PACV606H)~#|#~m003905183_sc7JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Primary Yellow, Bulk 250/Box (PACV606H)~#|#~m003905182_sc7
Item: 1589319
Model: PACV606H
No reviews yet
Price is $189.99
Unit of measure 250/Box
Free delivery by Fri, Dec 19
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LUX 5 x 5 Square Envelopes, 50/Box, Citrus (8505-20-50)~#|#~m000081523_sc7
Item: 282154
Model: 8505-20-50
No reviews yet
Price is $19.59
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper Cellophane Envelope with Peel & Seal Closure, 7.75 x 7.75, Clear, 100/Pack (7.75X7.75CELLO)~#|#~m000068414_sc7
Item: 262902
Model: 7.75X7.75CELLO
No reviews yet
Price is $58.99
Unit of measure 100/Pack
Free delivery by Fri, Dec 19
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LUX 5 1/2 x 5 1/2 Square Envelopes 50/Pack, Taupe Metallic (8515-M09-50)~#|#~sp14807609_sc7
Item: 24260976
Model: 8515-M09-50
No reviews yet
Price is $23.29
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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LUX 60lb 4 3/8"x8 1/4" Square Flap Photo Greeting Envelopes, White W/Black LUX, 1000/BX~#|#~m000082204_sc7
Item: 517229
Model: FLWHPHGC-021000
No reviews yet
Price is $190.12
Free delivery by Tue, Dec 23
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JAM Paper 5 x 6.125 Booklet Foil Envelopes with Self-Adhesive Closure, Silver Film Design, 100/Pack (01323265B)~#|#~sp137084268_sc7
Item: 260931
Model: 01323265B
No reviews yet
Price is $108.99
Unit of measure 100/Box
Free delivery by Fri, Dec 19
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LUX 4 x 4 Square Envelopes, 250/Box, 70lb. Bright White (8504-AO-250)~#|#~m000081468_sc7
Item: 515036
Model: 8504-AO-250
No reviews yet
Price is $66.44
Free delivery by Tue, Dec 23
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JAM Paper 6 x 6 Square Invitation Envelopes, Dark Purple, 50/Pack (563912522I)~#|#~m003905005_sc7JAM Paper 6 x 6 Square Invitation Envelopes, Dark Purple, 50/Pack (563912522I)~#|#~m003905004_sc7
Item: 1588390
Model: 563912522I
Price is $58.99
Unit of measure 50/Pack
Free delivery by Fri, Dec 19
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LUX #1 Coin Envelopes (2 1/4 x 3 1/2) 250/Box, Holiday Green (LUX-1CO-L17-250)~#|#~m001149688_sc7
Item: 1028522
Model: LUX-1CO-L17-250
No reviews yet
Price is $83.79
Free delivery by Tue, Dec 23
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JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Teal, Bulk 250/Box (157463H)~#|#~m003904716_sc7JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Teal, Bulk 250/Box (157463H)~#|#~m003904715_sc7
Item: 1590101
Model: 157463H
No reviews yet
Price is $128.89
Unit of measure 250/Box
Free delivery by Fri, Dec 19
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JAM Paper 6.125 x 9.5 Booklet Foil Envelopes with Self-Adhesive Closure, Gold, 25/Pack (1323285)~#|#~m000067480_sc7
Item: 260902
Model: 1323285
No reviews yet
Price is $41.89
Unit of measure 25/Pack
Free delivery by Fri, Dec 19
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JAM Paper 6 x 6 Square Invitation Envelopes, Dark Purple, Bulk 250/Box (563912522H)~#|#~m003905005_sc7JAM Paper 6 x 6 Square Invitation Envelopes, Dark Purple, Bulk 250/Box (563912522H)~#|#~m003905004_sc7
Item: 1589748
Model: 563912522H
No reviews yet
Price is $283.99
Unit of measure 250/Box
Free delivery by Fri, Dec 19
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JAM PAPER 7.5 x 7.5 Square Invitation Envelopes, Ivory, 100/Pack (23131971)~#|#~sp20131965_sc7JAM PAPER 7.5 x 7.5 Square Invitation Envelopes, Ivory, 100/Pack (23131971)~#|#~sp20131964_sc7
Item: 24295249
Model: 23131971
No reviews yet
Price is $73.29
Unit of measure 100/Pack
Free delivery by Fri, Dec 19
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Magenta (EX4865-10-50)~#|#~m000081718_sc7
Item: 282381
Model: EX4865-10-50
No reviews yet
Price is $20.19
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper 6.25 x 7.875 Open End Catalog Foil Envelopes with Self-Adhesive Closure, Blue, 25/Pack (1323271)~#|#~sp137086441_sc7JAM Paper 6.25 x 7.875 Open End Catalog Foil Envelopes with Self-Adhesive Closure, Blue, 25/Pack (1323271)~#|#~sp137085831_sc7
Item: 260891
Model: 1323271
No reviews yet
Price is $33.99
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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Over 30
LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 50/Pack, Natural Linen (LUX-4885-NLI-50)~#|#~sp12274947_sc7LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 50/Pack, Natural Linen (LUX-4885-NLI-50)~#|#~sp12275071_sc7
Item: 24161783
Model: LUX-4885-NLI-50
No reviews yet
Price is $15.59
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Natural w/Gold LUX Lining (FLNT4872-04-50)~#|#~m004940481_sc7LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Natural w/Gold LUX Lining (FLNT4872-04-50)~#|#~m005823921_sc7
Item: 282554
Model: FLNT4872-04-50
Price is $44.39
Unit of measure 50/Pack
Free delivery by Tue, Dec 23
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 250/Box, Holiday Green (67211-250)~#|#~m000081752_sc7
Item: 385626
Model: 67211-250
No reviews yet
Price is $60.89
Unit of measure 250/Box
Free delivery by Tue, Dec 23
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JAM Paper 8.5 x 8.5 Square Colored Invitation Envelopes, Green Recycled, Bulk 250/Box (2792295H)~#|#~m003904799_sc7JAM Paper 8.5 x 8.5 Square Colored Invitation Envelopes, Green Recycled, Bulk 250/Box (2792295H)~#|#~m003904798_sc7
Item: 1589778
Model: 2792295H
No reviews yet
Price is $236.99
Unit of measure 250/Box
Free delivery by Fri, Dec 19
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Black Linen (4872-BLI-50)~#|#~m000081688_sc7
Item: 282538
Model: 4872-BLI-50
No reviews yet
Price is $13.29
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Black, 50/Pack (900921796I)~#|#~sp121511957_sc7JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Black, 50/Pack (900921796I)~#|#~sp121511956_sc7
Item: 1588605
Model: 900921796I
No reviews yet
Price is $23.99
Unit of measure 50/Pack
Delivery by Fri, Dec 19
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LUX #1 Coin Envelopes (2 1/4 x 3 1/2) 250/Box, Blonde Metallic (1COBLON-250)~#|#~m003307889_sc7
Item: 1985181
Model: 1COBLON-250
No reviews yet
Price is $80.69
Unit of measure 250/Box
Free delivery by Tue, Dec 23
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JAM Paper A9 Metallic Invitation Envelopes, 5.75 x 8.75, Stardream Opal, 25/Pack (211817116)~#|#~sp137086209_sc7
Item: 261360
Model: 211817116
No reviews yet
Price is $41.09
Unit of measure 25/Pack
Free delivery by Fri, Dec 19
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LUX A7 Full Face Window Envelopes, Grocery Bag Brown, 500/PK (A7FFW-GB-500)~#|#~m003307941_sc7
Item: 1984835
Model: A7FFW-GB-500
No reviews yet
Price is $128.69
Unit of measure 500/Box
Free delivery by Tue, Dec 23
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Lilac (SH4265-05-50)~#|#~m000081716_sc7
Item: 282379
Model: 910003121/06827
No reviews yet
Price is $21.49
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Taupe Metallic (5375-M09-50)~#|#~m004063752_sc7
Item: 2146007
Model: 5375-M09-50
No reviews yet
Price is $27.49
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper A7 Colored Invitation Envelopes, 5 1/4" x 7 1/4", Violet Purple Recycled, Bulk 1000/Carton (80278B)~#|#~m003904638_sc7JAM Paper A7 Colored Invitation Envelopes, 5 1/4" x 7 1/4", Violet Purple Recycled, Bulk 1000/Carton (80278B)~#|#~m003904637_sc7
Item: 261119
Model: 80278B
No reviews yet
Price is $238.79
Unit of measure 1000/Carton
Free delivery by Fri, Dec 19
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 500/Box, Sunflower (EX4875-12-500)~#|#~m000081956_sc7
Item: 386528
Model: EX4875-12-500
No reviews yet
Price is $93.09
Unit of measure 500/Box
Free delivery by Tue, Dec 23
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JAM Paper 6.5 x 6.5 Square Colored Invitation Envelopes, Green Recycled, 100/Pack (02792279B)~#|#~m003904797_sc7JAM Paper 6.5 x 6.5 Square Colored Invitation Envelopes, Green Recycled, 100/Pack (02792279B)~#|#~m003904796_sc7
Item: 235630
Model: 02792279B
No reviews yet
Price is $64.99
Unit of measure 100/Box
Free delivery by Fri, Dec 19
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JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Ultra Fuchsia Pink, 100/Pack (356730545B)~#|#~sp115352069_sc7JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Ultra Fuchsia Pink, 100/Pack (356730545B)~#|#~sp115352067_sc7
Item: 2103429
Model: 356730545B
No reviews yet
Price is $37.19
Unit of measure 100/Pack
Free delivery by Fri, Dec 19
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JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Spring Ochre Ivory, 50/Pack (PACV520I)~#|#~m006965553_sc7JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Spring Ochre Ivory, 50/Pack (PACV520I)~#|#~m006965552_sc7
Item: 1588400
Model: PACV520I
No reviews yet
Price is $63.99
Unit of measure 50/Pack
Free delivery by Fri, Dec 19
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Over 30
LUX 7 x 7 Square Envelopes, 50/Box, Pool (LUX-8545-102-50)~#|#~m000081637_sc7
Item: 282286
Model: LUX-8545-102-50
Price is $42.79
Unit of measure 50/Pack
Free delivery by Tue, Dec 23
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Over 30
LUX 9 x 12 Booklet Envelopes 50/Pack, Crystal Clear (CC9X12-50)~#|#~sp14807543_sc7
Item: 24261196
Model: CC9X12-50
No reviews yet
Price is $44.39
Unit of measure 50/Pack
Free delivery by Tue, Dec 23
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Over 30
JAM PAPER Gummed A7 Square Invitation Envelopes, 5 1/4" x 7 1/4", Black, 25/Pack (95125I)~#|#~m003905207_sc7JAM PAPER Gummed A7 Square Invitation Envelopes, 5 1/4" x 7 1/4", Black, 25/Pack (95125I)~#|#~m003905206_sc7
Item: 261570
Model: V01205
Price is $18.19
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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Over 30
LUX A8 Foil Lined Invitation Envelopes (5 1/2 x 8 1/8) 50/Box, Natural w/Gold LUX Lining (FLNT4885-04-50)~#|#~m000082131_sc7
Item: 282885
Model: FLNT4885-04-50
No reviews yet
Price is $46.49
Unit of measure 50/Pack
Free delivery by Tue, Dec 23
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Over 30
LUX 7 1/2 x 10 1/2 Booklet Envelopes 500/Pack, 24lb. Bright White (12252-500)~#|#~sp14807339_sc7
Item: 24261203
Model: 12252-500
No reviews yet
Price is $93.09
Unit of measure 500/Pack
Free delivery by Tue, Dec 23
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JAM Paper Open End Catalog Envelopes, 9" x 12", White, 100/Pack (212816044f)~#|#~sp95009160_sc7JAM Paper Open End Catalog Envelopes, 9" x 12", White, 100/Pack (212816044f)~#|#~sp95008983_sc7
Item: 2633005
Model: 212816044F
No reviews yet
Price is $101.49
Unit of measure 100/Pack
Free delivery by Fri, Dec 19
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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.