LUX 6 1/2 x 6 1/2 Foil Lined Square Envelopes, 250/Box, White w/Red LUX Lining (FLWH8535-01-250)~#|#~m000081599_sc7
Item: 513766
Model: FLWH8535-01-250
No reviews yet
Price is $82.99
Free delivery by Fri, May 08
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LUX W-2 / 1099 Envelopes (5 3/4 x 8) 1000/Pack, White (7489-W2-1000)~#|#~sp5822112_sc7LUX W-2 / 1099 Envelopes (5 3/4 x 8) 1000/Pack, White (7489-W2-1000)~#|#~sp5875302_sc7
Item: 23995922
Model: 7489-W2-1000
No reviews yet
Price is $267.89
Unit of measure 1000/Pack
Free delivery by Fri, May 08
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Quality Park Survivor Self Seal Catalog Envelopes, 9"L x 12"H, White, 100/Box (QUAR1460)~#|#~sp44490052_sc7Quality Park Survivor Self Seal Catalog Envelopes, 9"L x 12"H, White, 100/Box (QUAR1460)~#|#~sp44490051_sc7
Item: QUAR1460
Model: QUAR1460
Price is $185.59
Unit of measure Box
Free delivery by Mon, May 04
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LUX 10 x 13 Open End Envelopes 250/Pack, Avocado (EX4897-27-250)~#|#~sp14807517_sc7
Item: 24260741
Model: EX4897-27-250
No reviews yet
Price is $120.79
Unit of measure 250/Pack
Free delivery by Fri, May 08
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LUX 5 1/4 x 5 1/4 Square 50/Pack, Gold Metallic (8510-07-50)~#|#~sp14807956_sc7
Item: 24260215
Model: 8510-07-50
No reviews yet
Price is $22.19
Unit of measure 50/Pack
Delivery by Fri, May 08
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JAM Paper 6.5 x 6.5 Square Metallic Invitation Envelopes, Stardream Gold, Bulk 250/Box (GCST508H)~#|#~m003905124_sc7JAM Paper 6.5 x 6.5 Square Metallic Invitation Envelopes, Stardream Gold, Bulk 250/Box (GCST508H)~#|#~m003905123_sc7
Item: 1589741
Model: GCST508H
No reviews yet
Price is $314.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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LUX 5 x 5 Square Envelopes, 500/Box, White Linen (8505-WLI-500)~#|#~m000081536_sc7
Item: 514823
Model: 8505-WLI-500
No reviews yet
Price is $124.49
Free delivery by Fri, May 08
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 5.75 x 5.75, Clear, 1000/Carton (5.75X5.75CELLOB)~#|#~m003548833_sc7
Item: 262932
Model: 5.75X5.75CELLOB
No reviews yet
Price is $364.99
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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JAM Paper 6.25 x 7.875 Open End Foil Envelopes with Self-Adhesive Closure, Red, 100/Pack (01323272B)~#|#~m000067470_sc7
Item: 260940
Model: 01323272B
No reviews yet
Price is $108.99
Unit of measure 100/Box
Free delivery by Wed, May 06
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 250/Box, Silver Metallic (5365-06-250)~#|#~m000081736_sc7
Item: 385059
Model: 5365-06-250
No reviews yet
Price is $60.19
Unit of measure 250/Box
Free delivery by Fri, May 08
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 250/Box, Taupe Metallic (5375-M09-250)~#|#~m004063752_sc7
Item: 2145962
Model: 5375-M09-250
No reviews yet
Price is $97.99
Unit of measure 250/Pack
Free delivery by Fri, May 08
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LUX 8 x 8 Square Envelopes, 50/Box, Grocery Bag (8565-GB-50)~#|#~m000081642_sc7
Item: 282297
Model: 8565-GB-50
Price is $46.79
Unit of measure 50/Pack
Free delivery by Fri, May 08
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LUX 6 1/2 x 6 1/2 Square Envelopes, 250/Box, Citrus (FE8535-20-250)~#|#~m000081565_sc7
Item: 387853
Model: FE8535-20-250
No reviews yet
Price is $49.09
Unit of measure 250/Box
Free delivery by Fri, May 08
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 250/Box, Jupiter Metallic (5375-20-250)~#|#~m000081921_sc7
Item: 385243
Model: 5375-20-250
No reviews yet
Price is $71.99
Unit of measure 250/Box
Free delivery by Fri, May 08
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JAM Paper A6 Colored Invitation Envelopes, 4.75 x 6.5, Green Recycled, Bulk 1000/Carton (67195B)~#|#~m003904610_sc7JAM Paper A6 Colored Invitation Envelopes, 4.75 x 6.5, Green Recycled, Bulk 1000/Carton (67195B)~#|#~m003904609_sc7
Item: 261281
Model: 67195B
No reviews yet
Price is $227.99
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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JAM Paper 8.5 x 8.5 Kraft Square Invitation Envelopes, Brown Kraft Paper Bag, Bulk 250/Box (LEKR505H)~#|#~m002168981_sc7
Item: 1589757
Model: LEKR505H
No reviews yet
Price is $236.99
Unit of measure 250/Box
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, Bulk 500/Box (356730548H)~#|#~m003757870_sc7JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Orange Recycled, Bulk 500/Box (356730548H)~#|#~m003750595_sc7
Item: 2103423
Model: 356730548H
No reviews yet
Price is $152.99
Unit of measure 500/Box
Free delivery by Wed, May 06
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JAM Paper 8.5 x 8.5 Square Colored Invitation Envelopes, Red Recycled, 50/Pack (2794374I)~#|#~m002934119_sc7JAM Paper 8.5 x 8.5 Square Colored Invitation Envelopes, Red Recycled, 50/Pack (2794374I)~#|#~m002934118_sc7
Item: 1588519
Model: 2794374I
No reviews yet
Price is $59.99
Unit of measure 50/Pack
Free delivery by Wed, May 06
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JAM Paper Square Envelopes, Peel & Press, Blush Pink, 6 1/4 x 6 1/4, 250 Pack, (8530-114-250)~#|#~sp228873557_sc7
Item: 24578547
Model: 8530-114-250
No reviews yet
Price is $46.59
Unit of measure 250/Pack
Free delivery by Wed, May 06
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LUX 70lbs. 5 3/4" x 8 3/4" A9 Invitation Envelopes W/Peel & Press, Ruby Red, 250/BX~#|#~m000082178_sc7
Item: 386794
Model: EX4895-18-250
No reviews yet
Price is $93.19
Unit of measure 250/Box
Free delivery by Fri, May 08
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 1000/Pack, Blush (LUX-4865-391000)~#|#~sp5822112_sc7LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 1000/Pack, Blush (LUX-4865-391000)~#|#~F88DF324-EA76-4780-89DDBA876EB8A008_sc7
Item: 23996533
Model: LUX-4865-391000
No reviews yet
Price is $144.49
Unit of measure 1000/Pack
Free delivery by Fri, May 08
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LUX 5 1/2 x 5 1/2 Square Envelopes, 250/Box, Midnight Black (F-8515-B-250)~#|#~m000081489_sc7
Item: 387527
Model: F-8515-B-250
No reviews yet
Price is $73.89
Unit of measure 250/Box
Free delivery by Fri, May 08
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JAM Paper #10 Booklet Foil Envelopes with Self-Adhesive Closure, 4.125 x 9.5, Blue, 100/Pack (01327705B)~#|#~1F47D90D-83F9-4485-A854C52E72972771_sc7
Item: 260951
Model: 01327705B
No reviews yet
Price is $127.99
Unit of measure 100/Box
Free delivery by Wed, May 06
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LUX 9 x 9 Square Envelopes, 50/Box, Clear Translucent (8585-50-50)~#|#~m000081665_sc7
Item: 282322
Model: 8585-50-50
No reviews yet
Price is $35.99
Unit of measure 50/Pack
Free delivery by Fri, May 08
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, Garnet (EX4865-26-500)~#|#~m000081704_sc7
Item: 386424
Model: EX4865-26-500
No reviews yet
Price is $98.29
Unit of measure 500/Box
Free delivery by Fri, May 08
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JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Primary Yellow, 50/Pack (PACV506I)~#|#~m003905174_sc7JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Primary Yellow, 50/Pack (PACV506I)~#|#~m003905173_sc7
Item: 1588524
Model: PACV506I
No reviews yet
Price is $58.99
Unit of measure 50/Pack
Free delivery by Wed, May 06
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LUX 6" x 9" Button & String Envelopes, 250/Box, 28lb. White (69BS-28W-250)~#|#~9C0937C6-20D2-42CE-9EC535B9A8DA2C4D_sc7LUX 6" x 9" Button & String Envelopes, 250/Box, 28lb. White (69BS-28W-250)~#|#~DB475B35-5E4C-4B00-A66FA32D774B448C_sc7
Item: 2444631
Model: 69BS-28W-250
No reviews yet
Price is $225.19
Unit of measure 250/Pack
Free delivery by Fri, May 08
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Pack, Blush (LUX-4865-39-50)~#|#~sp5822112_sc7LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Pack, Blush (LUX-4865-39-50)~#|#~F88DF324-EA76-4780-89DDBA876EB8A008_sc7
Item: 23996538
Model: LUX-4865-39-50
No reviews yet
Price is $28.19
Unit of measure 50/Pack
Delivery by Fri, May 08
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JAM Paper 6.5 x 6.5 Square Invitation Envelopes, White, Bulk 250/Box (28417H)~#|#~m007049353_sc7JAM Paper 6.5 x 6.5 Square Invitation Envelopes, White, Bulk 250/Box (28417H)~#|#~m007049352_sc7
Item: 1589843
Model: 28417H
No reviews yet
Price is $111.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Primary Blue, Bulk 250/Box (PACV507H)~#|#~m003905176_sc7JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Primary Blue, Bulk 250/Box (PACV507H)~#|#~m003905175_sc7
Item: 1589795
Model: PACV507H
No reviews yet
Price is $283.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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LUX 5 x 5 Square Envelopes, 50/Box, Black Linen (8505-BLI-50)~#|#~m000081520_sc7
Item: 282151
Model: 8505-BLI-50
No reviews yet
Price is $22.39
Unit of measure 50/Pack
Delivery by Fri, May 08
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LUX Moistenable Glue Envelope 3 1/8" x 6 1/4", Pastel Green, 250/Pack (WS-7613-250)~#|#~697A1C32-D1AB-4FE6-AB0A5AD00A375DCB_sc7LUX Moistenable Glue Envelope 3 1/8" x 6 1/4", Pastel Green, 250/Pack (WS-7613-250)~#|#~DF3B1E0A-B2AF-4A33-A5A5488DEF43AB46_sc7
Item: 23996722
Model: WS-7613-250
No reviews yet
Price is $54.29
Unit of measure 250/Pack
Free delivery by Fri, May 08
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Over 30
JAM Paper A8 Foil Lined Invitation Envelopes, 5.5 x 8.125, White with Red Foil, 50/Pack (3243657I)~#|#~m005223351_sc7JAM Paper A8 Foil Lined Invitation Envelopes, 5.5 x 8.125, White with Red Foil, 50/Pack (3243657I)~#|#~m005223350_sc7
Item: 1589168
Model: 3243657I
No reviews yet
Price is $24.29
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM PAPER 3 7/8 x 8 1/8 Foil Lined Invitation Envelopes, White with Silver Foil, 50/Pack (352231723I)~#|#~sp95008897_sc7JAM PAPER 3 7/8 x 8 1/8 Foil Lined Invitation Envelopes, White with Silver Foil, 50/Pack (352231723I)~#|#~sp95008896_sc7
Item: 2477987
Model: 352231723I
No reviews yet
Price is $22.79
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper 6 x 6 Square Invitation Envelopes, Presidential Blue, 25/Pack (563916914)~#|#~m003000921_sc7JAM Paper 6 x 6 Square Invitation Envelopes, Presidential Blue, 25/Pack (563916914)~#|#~m003000920_sc7
Item: 261136
Model: 563916914
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Wed, May 06
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Over 30
JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,Smoke, 500 Pack, Gray (EX8555-22-500)~#|#~sp228873558_sc7
Item: 24578548
Model: EX8555-22-500
No reviews yet
Price is $86.09
Unit of measure 500/Pack
Free delivery by Wed, May 06
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Over 30
JAM Paper Self Seal Invitation Envelope, 5 1/4 x 5 1/4, Ruby Red, 50/Pack (LUX-8510-18-50)~#|#~sp226423821_sc7
Item: 24578482
Model: LUX-8510-18-50
No reviews yet
Price is $12.29
Unit of measure 50/Pack
Delivery by Wed, May 06
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Over 30
JAM Paper A6 Colored Invitation Envelopes, 4.75 x 6.5, Red Recycled, Bulk 1000/Carton (67503B)~#|#~sp115352048_sc7JAM Paper A6 Colored Invitation Envelopes, 4.75 x 6.5, Red Recycled, Bulk 1000/Carton (67503B)~#|#~sp115352047_sc7
Item: 260841
Model: 67503B
No reviews yet
Price is $242.69
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 5.0625 x 7.1875, Purple, 100/Pack (2785510)~#|#~m000969560_sc7
Item: 235642
Model: 2785510
No reviews yet
Price is $48.99
Unit of measure 100/Pack
Free delivery by Wed, May 06
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Quality Park Redi-Seal Security Tinted Business Envelope, 4 1/8" x 9 1/2", White Wove, 500/Box (21418)~#|#~sp38165574_sc7Quality Park Redi-Seal Security Tinted Business Envelope, 4 1/8" x 9 1/2", White Wove, 500/Box (21418)~#|#~sp38165572_sc7
Item: QUA21418
Model: QUA21418
Price is $147.99
Unit of measure 500/Box
Free delivery by Tue, May 05
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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.