LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Mandarin (EX4865-11-50)~#|#~m000081719_sc7
Item: 282382
Model: EX4865-11-50
No reviews yet
Price is $13.29
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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LUX A2 (4 3/8 x 5 3/4) 250/Box, 70lb. Bright White (20446-250)~#|#~m000161389_sc7
Item: 384351
Model: 20446-250
No reviews yet
Price is $82.89
Unit of measure 250/Box
Free delivery by Tue, Dec 23
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JAM Paper 10" x 13" Open End Catalog Envelopes, Black, 10/Pack (87733B)~#|#~9445785A-A496-4D68-B040D430D0E0B5B2_sc7JAM Paper 10" x 13" Open End Catalog Envelopes, Black, 10/Pack (87733B)~#|#~0A03EAE2-8E19-4167-9147DE3E429D77D4_sc7
Item: 38275
Model: 87733B
No reviews yet
Price is $18.99
Unit of measure 10/Pack
Delivery by Fri, Dec 19
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JAM Paper Plastic Envelopes with Hook & Loop Closure, Index Booklet, 5.5 x 7.5, Blue, 12/Pack (920V0BU)~#|#~sp89840140_sc7JAM Paper Plastic Envelopes with Hook & Loop Closure, Index Booklet, 5.5 x 7.5, Blue, 12/Pack (920V0BU)~#|#~sp89839857_sc7
Item: 263523
Model: 920V0BU
No reviews yet
Price is $28.19
Unit of measure 12/Pack Price per unit $2.35/Envelope
Delivery by Fri, Dec 19
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Staples Tyvek EasyClose Catalog Envelopes, 13" x 10", White, 100/Box (ST19860-CC)~#|#~sp37069921_sc7Staples Tyvek EasyClose Catalog Envelopes, 13" x 10", White, 100/Box (ST19860-CC)~#|#~sp37069918_sc7
Item: 534610
Model: ST19860-CC
Price is $286.99
Unit of measure 100/Box
Free Next-Day eligible by Mon, Dec 15
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Quality Park Survivor First Class Tyvek Self Seal Catalog Envelope, 10" x 13", White/Green, 100/Carton (R4210)~#|#~m004079050_sc7
Item: 2301091
Model: TYE10131FC
Price is $246.19
Unit of measure 100/Carton
Free delivery by Fri, Dec 19
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JAM Paper Self Seal Catalog Envelope, 9" x 12", Blue, 50/Pack (188047509I)~#|#~990D3B59-2FC7-46DA-B29B5F7079C8BE80_sc7
Item: 24557978
Model: 188047509I
No reviews yet
Price is $45.19
Unit of measure 50/Pack
Free delivery by Fri, Dec 19
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Quartz Metallic (5375-08-50)~#|#~F3094FDC-37C4-46C4-82BCB3AE54403418_sc7LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Quartz Metallic (5375-08-50)~#|#~7A526A39-5EFE-4144-A82A99C52132DD96_sc7
Item: 282653
Model: 5375-08-50
No reviews yet
Price is $19.99
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 1000/Box, Copper Metallic (5365-11-1000)~#|#~m000081698_sc7
Item: 385079
Model: 5365-11-1000
No reviews yet
Price is $172.78
Unit of measure 1000/Box
Free delivery by Tue, Dec 23
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LUX 9 x 12 Open End Envelopes 50/Pack, Smoke (EX4894-22-50)~#|#~sp14807569_sc7
Item: 24261083
Model: EX4894-22-50
No reviews yet
Price is $25.19
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper Open End Catalog Envelope, 9" x 12", Red, 100/Box (80329)~#|#~m002934030_sc7JAM Paper Open End Catalog Envelope, 9" x 12", Red, 100/Box (80329)~#|#~m002934029_sc7
Item: 261757
Model: 80329
Price is $59.79
Unit of measure 100/Box
Free delivery by Fri, Dec 19
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JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Violet Purple Recycled, 25/Pack (80278)~#|#~m003904638_sc7JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Violet Purple Recycled, 25/Pack (80278)~#|#~m003904637_sc7
Item: 261110
Model: 80278
Price is $10.99
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Yellow Recycled, 25/Pack (356730557)~#|#~m003757860_sc7JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Yellow Recycled, 25/Pack (356730557)~#|#~m003562845_sc7
Item: 2103401
Model: 356730557
No reviews yet
Price is $16.39
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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JAM Paper Specialty Envelope 6 1/2" x 6 1/2", Brown Kraft, 100/Pack (63131150d)~#|#~A5F37896-C061-4121-AB4382150FB621DF_sc7JAM Paper Specialty Envelope 6 1/2" x 6 1/2", Brown Kraft, 100/Pack (63131150d)~#|#~859CCB3A-465C-411F-B202E2954334BD47_sc7
Item: 24604443
Model: 63131150d
No reviews yet
Price is $96.99
Unit of measure 100/Pack
Free delivery by Fri, Dec 19
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LUX Moistenable Glue A2 Invitation Envelope, 5 3/4" x 4 3/8", Bright White, 1000/Box (72924-1000)~#|#~sp95007241_sc7LUX Moistenable Glue A2 Invitation Envelope, 5 3/4" x 4 3/8", Bright White, 1000/Box (72924-1000)~#|#~m000161328_sc7
Item: 385634
Model: 72924-1000
Price is $118.09
Unit of measure 1000/Box
Free delivery by Tue, Dec 23
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Mandarin (EX4880-11-250)~#|#~m005902327_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Mandarin (EX4880-11-250)~#|#~m005823958_sc7
Item: 386604
Model: EX4880-11-250
No reviews yet
Price is $92.19
Unit of measure 250/Box
Free delivery by Tue, Dec 23
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Silver Metallic (5370-06-50)~#|#~m000081736_sc7
Item: 282504
Model: 5370-06-50
Price is $16.39
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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LUX A6 Foil Lined Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, White w/Black LUX Lining (FLWH4875-02-50)~#|#~m000081966_sc7
Item: 282678
Model: FLWH4875-02-50
Price is $36.79
Unit of measure 50/Pack
Free delivery by Tue, Dec 23
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LUX Double Window Invoice Envelopes (4 1/8 x 9 1/8) 50/Box, Mandarin (INVDW-11-50)~#|#~m004063892_sc7
Item: 2147444
Model: INVDW-11-50
No reviews yet
Price is $28.99
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Ultra Lime Green, 25/Pack (356730546)~#|#~sp131391258_sc7JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Ultra Lime Green, 25/Pack (356730546)~#|#~sp131391257_sc7
Item: 2103447
Model: 356730546
No reviews yet
Price is $11.49
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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JAM Paper #10 Booklet Foil Envelopes with Self-Adhesive Closure, 4.125 x 9.5, Blue, 25/Pack (1327705)~#|#~284E4566-35DF-4D5A-BBB003391DDD875E_sc7
Item: 260899
Model: 1327705
No reviews yet
Price is $46.99
Unit of measure 25/Pack
Free delivery by Fri, Dec 19
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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 $27.59
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Dark Gray, 50/Pack (36396445I)~#|#~m004671983_sc7JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Dark Gray, 50/Pack (36396445I)~#|#~m004671982_sc7
Item: 1588657
Model: 36396445I
No reviews yet
Price is $22.99
Unit of measure 50/Pack
Delivery by Fri, Dec 19
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JAM Paper A8 Metallic Invitation Envelopes, 5.5 x 8.125, Stardream Copper, 50/Pack (9844I)~#|#~m003904485_sc7JAM Paper A8 Metallic Invitation Envelopes, 5.5 x 8.125, Stardream Copper, 50/Pack (9844I)~#|#~m003904484_sc7
Item: 1589119
Model: 9844I
No reviews yet
Price is $46.59
Unit of measure 50/Pack
Free delivery by Fri, Dec 19
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, Avocado (EX4865-27-500)~#|#~m000081685_sc7
Item: 514462
Model: EX4865-27-500
No reviews yet
Price is $104.39
Free delivery by Tue, Dec 23
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LUX 6 1/2 x 6 1/2 Square Envelopes, 50/Box, White Linen (8535-WLI-50)
Item: 282239
Model: 8535-WLI-50
No reviews yet
Price is $32.49
Unit of measure 50/Pack
Delivery by Tue, Dec 23
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LUX 80lbs. 5 3/4" x 8 3/4" A9 Invitation Envelopes W/Glue, Jupiter Metallic Red Red, 1000/BX~#|#~m000082163_sc7
Item: 385387
Model: 5395-20-1000
No reviews yet
Price is $334.69
Unit of measure 1000/Box
Free delivery by Tue, Dec 23
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JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Dark Purple, 25/Pack (563912527)~#|#~m003905007_sc7JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Dark Purple, 25/Pack (563912527)~#|#~m003905006_sc7
Item: 261631
Model: 563912527
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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JAM Paper Cellophane Envelope with Peel & Seal Closure, 6.4375 x 8.25, Clear, 100/Pack (A8CELLO)~#|#~m000068418_sc7
Item: 262896
Model: A8CELLO
Price is $33.39
Unit of measure 100/Pack
Delivery by Fri, Dec 19
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JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Ultra Lime Green, 100/Pack (356730546B)~#|#~sp131391158_sc7JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Ultra Lime Green, 100/Pack (356730546B)~#|#~sp131391157_sc7
Item: 2103432
Model: 356730546B
Price is $35.49
Unit of measure 100/Pack
Free delivery by Fri, Dec 19
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JAM Paper 8.5 x 8.5 Square Translucent Vellum Invitation Envelopes, Gold, 25/Pack (PACV597)~#|#~m003905181_sc7JAM Paper 8.5 x 8.5 Square Translucent Vellum Invitation Envelopes, Gold, 25/Pack (PACV597)~#|#~m003904787_sc7
Item: 262257
Model: PACV597
No reviews yet
Price is $33.99
Unit of measure 25/Pack
Delivery by Fri, Dec 19
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 13.4375 x 19.25, Clear, 1000/Carton (13.519.25CELLOB)~#|#~m001367398_sc7
Item: 262937
Model: 13.519.25CELLOB
No reviews yet
Price is $934.99
Unit of measure 1000/Carton
Free delivery by Fri, Dec 19
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JAM Paper 10" x 13" Booklet Translucent Vellum Envelopes, Clear, 10/Pack (900840420D)~#|#~m006965529_sc7JAM Paper 10" x 13" Booklet Translucent Vellum Envelopes, Clear, 10/Pack (900840420D)~#|#~m006965528_sc7
Item: 38309
Model: 900840420D
Price is $22.79
Unit of measure 10/Pack
Delivery by Fri, Dec 19
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 8.9375 x 11.25, Aqua Blue, 100/Pack (811BL1)~#|#~m000969582_sc7
Item: 235499
Model: 811BL1
No reviews yet
Price is $93.89
Unit of measure 100/Pack
Free delivery by Fri, Dec 19
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, Natural (5880-01-500)~#|#~m000082050_sc7
Item: 515361
Model: 5880-01-500
Price is $93.05
Free delivery by Tue, Dec 23
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JAM Paper Cellophane Envelope with Peel & Seal Closure, A2, 4.625 x 5.875, Clear, 100/Pack (A2CELLO)~#|#~m003574763_sc7
Item: 262893
Model: A2CELLO
Price is $33.99
Unit of measure 100/Pack
Delivery by Fri, Dec 19
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LUX #10 Kraft Window Envelopes (4 1/8 x 9 1/2) 250/Pack, 24lb. Brown Kraft (97767-250)~#|#~sp14807341_sc7
Item: 24260664
Model: 97767-250
No reviews yet
Price is $40.85
Unit of measure 250/Pack
Free delivery by Tue, Dec 23
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LUX A2 (4 3/8 x 5 3/4) 1000/Box, Grocery Bag (4870-GB-1000)~#|#~m000081789_sc7
Item: 384698
Model: 4870-GB-1000
No reviews yet
Price is $116.64
Unit of measure 1000/Box
Free delivery by Tue, Dec 23
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, 24lb. White~#|#~m004064012_sc7
LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, 24lb. White is Out of stock
Item: 2146368
Model: 51867-MI-250
Price is $65.39
Unit of measure 250/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.