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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LUX A2 (4 3/8 x 5 3/4) 500/Box, White Linen (4870-WLI-500)~#|#~m000161359_sc7
Item: 516335
Model: 4870-WLI-500
Price is $81.69
Unit of measure 500/Box
Free delivery by Mon, May 11
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 5.0625 x 7.1875, Peach, 100/Pack (2785508)~#|#~m000969558_sc7
Item: 235574
Model: 2785508
No reviews yet
Price is $48.99
Unit of measure 100/Pack
Free delivery by Thu, May 07
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JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Orange, 25/Pack (PACV619)~#|#~m000068160_sc7
Item: 262314
Model: PACV619
No reviews yet
Price is $26.29
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX A8 Foil Lined Invitation Envelopes (5 1/2 x 8 1/8) 1000/Box, White w/Silver LUX Lining (FLWH4885-031000)~#|#~m000082136_sc7
Item: 517325
Model: FLWH4885-031000
No reviews yet
Price is $272.69
Free delivery by Mon, May 11
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LUX 5 x 5 Square Envelopes, 1000/Box, Ruby Red (8505-18-1000)~#|#~m000081533_sc7
Item: 515023
Model: 8505-18-1000
No reviews yet
Price is $238.29
Free delivery by Mon, May 11
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 1000/Box, Citrus (FE4280-20-1000)~#|#~m005902340_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 1000/Box, Citrus (FE4280-20-1000)~#|#~m005823944_sc7
Item: 387847
Model: FE4280-20-1000
No reviews yet
Price is $165.29
Unit of measure 1000/Box
Free delivery by Mon, May 11
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JAM Paper 6.5 x 6.5 Square Translucent Vellum Envelopes, Leaf Green, 25/Pack (1592115)~#|#~m000068069_sc7
Item: 262184
Model: 1592115
No reviews yet
Price is $35.59
Unit of measure 25/Pack
Free delivery by Thu, May 07
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LUX 6 1/2 x 6 1/2 Square Envelopes, 500/Box, Seafoam (LUX-8535-113500)~#|#~m000081498_sc7
Item: 517570
Model: LUX-8535-113500
No reviews yet
Price is $182.59
Free delivery by Mon, May 11
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Smoke (EX4870-22-50)~#|#~m000081825_sc7
Item: 282507
Model: EX4870-22-50
Price is $13.29
Unit of measure 50/Pack
Delivery by Mon, May 11
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Vista Metallic (5365-29-50)~#|#~m000081745_sc7
Item: 282409
Model: 5365-29-50
Price is $18.19
Unit of measure 50/Pack
Delivery by Mon, May 11
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JAM Paper #10 Business Foil Envelopes with Self-Adhesive Closure, 4.125 x 9.5, Silver, 100/Pack (01323306B)~#|#~m004671920_sc7JAM Paper #10 Business Foil Envelopes with Self-Adhesive Closure, 4.125 x 9.5, Silver, 100/Pack (01323306B)~#|#~m004671919_sc7
Item: 260947
Model: 01323306B
No reviews yet
Price is $127.99
Unit of measure 100/Box
Free delivery by Thu, May 07
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JAM Paper 6.25 x 7.875 Open End Catalog Foil Envelopes with Self-Adhesive Closure, Blue Santa, 25/Pack (1333327)~#|#~m000141498_sc7
Item: 362865
Model: 1333327
No reviews yet
Price is $33.99
Unit of measure 25/Pack
Delivery by Thu, May 07
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JAM Paper® #1 Coin Business Colored Envelopes, 2.25 x 3.5, Orange Recycled, 100/Pack (352627815F)~#|#~sp29740560_sc7JAM Paper® #1 Coin Business Colored Envelopes, 2.25 x 3.5, Orange Recycled, 100/Pack (352627815F)~#|#~sp29740559_sc7
Item: 24364807
Model: 352627815F
No reviews yet
Price is $38.49
Unit of measure 100/Pack
Free delivery by Thu, May 07
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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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JAM Paper 8.5 x 8.5 Square Translucent Vellum Invitation Envelopes, Gold, Bulk 250/Box (PACV597H)~#|#~m003905181_sc7JAM Paper 8.5 x 8.5 Square Translucent Vellum Invitation Envelopes, Gold, Bulk 250/Box (PACV597H)~#|#~m003904787_sc7
Item: 1589737
Model: PACV597H
No reviews yet
Price is $314.99
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) 1000/Box, Holiday Green (FE4280-12-1000)~#|#~m005902339_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 1000/Box, Holiday Green (FE4280-12-1000)~#|#~m005823952_sc7
Item: 387841
Model: FE4280-12-1000
Price is $99.79
Unit of measure 1000/Box
Free delivery by Mon, May 11
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 250/Box, Avocado (EX4875-27-250)~#|#~m000081894_sc7
Item: 386598
Model: EX4875-27-250
No reviews yet
Price is $70.39
Unit of measure 250/Box
Free delivery by Mon, May 11
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LUX 80lbs. 5 3/4" x 8 3/4" A9 Invitation Envelopes W/Glue, Rose Metallic, 250/BX~#|#~m000081732_sc7
Item: 385326
Model: 5395-04-250
No reviews yet
Price is $100.49
Unit of measure 250/Box
Free delivery by Mon, May 11
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 250/Pack, 80lb. White (4872-80W-250)~#|#~sp12274947_sc7LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 250/Pack, 80lb. White (4872-80W-250)~#|#~sp12275067_sc7
Item: 24161649
Model: 4872-80W-250
Price is $100.99
Unit of measure 250/Pack
Free delivery by Mon, May 11
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LUX W-2 / 1099 Envelopes (5 3/4 x 8) 250/Pack, White (7489-W2-250)~#|#~sp5822112_sc7LUX W-2 / 1099 Envelopes (5 3/4 x 8) 250/Pack, White (7489-W2-250)~#|#~sp5875302_sc7
Item: 23996254
Model: 7489-W2-250
Price is $85.69
Unit of measure 250/Pack
Free delivery by Mon, May 11
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LUX Double Window Invoice Envelopes (4 1/8 x 9 1/8) 50/Box, Grocery Bag (INVDW-GB-50)~#|#~m004063728_sc7
Item: 2147472
Model: INVDW-GB-50
No reviews yet
Price is $28.49
Unit of measure 50/Pack
Delivery by Mon, May 11
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JAM Paper 6.5" x 6.5" Square Translucent Vellum Invitation Envelopes, Racing Green, 100/Pack (1592125B)~#|#~m000068865_sc7
Item: 38051
Model: 1592125B
No reviews yet
Price is $64.99
Unit of measure 100/Pack
Free delivery by Thu, May 07
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LUX A7 Foil Lined Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, Black w/Red LUX Lining (FLBK4880-01-500)~#|#~m000082008_sc7
Item: 513935
Model: FLBK4880-01-500
No reviews yet
Price is $203.59
Free delivery by Mon, May 11
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LUX 6 1/2 x 6 1/2 Square Envelopes, 50/Box, Garnet (EX8535-26-50)~#|#~m000081569_sc7
Item: 282205
Model: EX8535-26-50
No reviews yet
Price is $24.59
Unit of measure 50/Pack
Delivery by Mon, May 11
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LUX 6 1/2 x 6 1/2 Square Envelopes, 50/Box, Gold Metallic (8535-07-50)~#|#~m000081570_sc7
Item: 282206
Model: 8535-07-50
No reviews yet
Price is $35.79
Unit of measure 50/Pack
Free delivery by Mon, May 11
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JAM Paper A8 Invitation Envelopes, 5.5 x 8.125, Navy Blue, Bulk 250/Box (LEBA767H)~#|#~sp132864562_sc7JAM Paper A8 Invitation Envelopes, 5.5 x 8.125, Navy Blue, Bulk 250/Box (LEBA767H)~#|#~sp132864561_sc7
Item: 1589941
Model: LEBA767H
No reviews yet
Price is $102.99
Unit of measure 250/Box
Free delivery by Thu, May 07
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JAM Paper 7.5 x 7.5 Square Invitation Envelopes, Baby Pink, 25/Pack (327912961)~#|#~sp4808474_sc7
Item: 2632937
Model: 327912961
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Thu, May 07
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JAM Paper Self Seal Business Envelope, 5 1/4 x 5 1/4 Square, Ruby Red, 250/Pack (LUX-8510-18-250)~#|#~sp226423824_sc7
Item: 24578488
Model: LUX-8510-18-250
No reviews yet
Price is $43.09
Unit of measure 250/Pack
Free delivery by Thu, May 07
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JAM Paper 6.25 x 7.875 Open End Foil Envelopes with Self-Adhesive Closure, Red, 25/Pack (1323272)~#|#~m000067470_sc7
Item: 260889
Model: 1323272
No reviews yet
Price is $37.39
Unit of measure 25/Pack
Free delivery by Thu, May 07
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LUX 5 x 5 Square Envelopes, 500/Box, Grocery Bag (8505-GB-500)
Item: 514951
Model: 8505-GB-500
No reviews yet
Price is $119.89
Free delivery by Mon, May 11
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JAM Paper A8 Colored Invitation Envelopes, 5.5 x 8.125, Red Recycled, Bulk 1000/Carton (27799B)~#|#~sp132864678_sc7JAM Paper A8 Colored Invitation Envelopes, 5.5 x 8.125, Red Recycled, Bulk 1000/Carton (27799B)~#|#~sp132864677_sc7
Item: 260843
Model: 27799B
No reviews yet
Price is $272.99
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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LUX 5 x 5 Square Envelopes, 250/Box, Citrus (8505-20-250)~#|#~m000081523_sc7
Item: 385709
Model: 8505-20-250
No reviews yet
Price is $71.99
Unit of measure 250/Box
Free delivery by Mon, May 11
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LUX 6 1/2 x 6 1/2 Square Envelopes, 1000/Box, Gold Metallic (8535-07-1000)~#|#~m000081570_sc7
Item: 385776
Model: 8535-07-1000
No reviews yet
Price is $337.59
Unit of measure 1000/Box
Free delivery by Mon, May 11
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JAM Paper 4Bar A1 Metallic Invitation Envelopes, 3.625 x 5.125, Stardream Silver, 25/Pack (V018243)~#|#~m004672478_sc7JAM Paper 4Bar A1 Metallic Invitation Envelopes, 3.625 x 5.125, Stardream Silver, 25/Pack (V018243)~#|#~m004672477_sc7
Item: 261985
Model: V018243
No reviews yet
Price is $26.29
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Garnet (LUX-4872-26-50)~#|#~m000081858_sc7
Item: 282546
Model: LUX-4872-26-50
No reviews yet
Price is $16.19
Unit of measure 50/Pack
Delivery by Mon, May 11
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 3.6875 x 2.375, Clear, 1000/Carton (BUSCARDCELLOB)~#|#~m000068423_sc7
Item: 262942
Model: BUSCARDCELLOB
No reviews yet
Price is $209.99
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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JAM Paper® 6 x 9 Open End Catalog Colored Envelopes, Red Recycled, 250/Pack (V0128139D)~#|#~sp4800494_sc7JAM Paper® 6 x 9 Open End Catalog Colored Envelopes, Red Recycled, 250/Pack (V0128139D)~#|#~sp4800493_sc7
Item: 24365053
Model: V0128139D
No reviews yet
Price is $179.49
Unit of measure 250/Pack
Free delivery by Thu, May 07
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JAM Paper A6 Invitation Envelopes, 4.75 x 6.5, Teal, 50/Pack (157462I)~#|#~m003904714_sc7JAM Paper A6 Invitation Envelopes, 4.75 x 6.5, Teal, 50/Pack (157462I)~#|#~m003904713_sc7
Item: 1588844
Model: 157462I
No reviews yet
Price is $22.19
Unit of measure 50/Pack
Delivery by Thu, May 07
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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.