Square Envelopes

JAM Paper Cellophane Envelope with Peel & Seal Closure, 5.9375 x 8.875, Clear, 1000/Carton (A9CELLOB)~#|#~sp74203868_sc7JAM Paper Cellophane Envelope with Peel & Seal Closure, 5.9375 x 8.875, Clear, 1000/Carton (A9CELLOB)~#|#~sp74203921_sc7
Item: 262947
Model: A9CELLOB
No reviews yet
Price is $450.99
Unit of measure 1000/Carton
Free delivery by Tue, May 05
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LUX A7 Foil Lined Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Navy w/Gold LUX Lining (FLNV4880-04-250)~#|#~m000082057_sc7
Item: 387896
Model: FLNV4880-04-250
No reviews yet
Price is $111.49
Unit of measure 250/Box
Free delivery by Thu, May 07
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LUX A7 Gatefold Invitation (5 x 7) 100/Pack, Midnight Black (LUXA7GF-B-100)~#|#~sp14807892_sc7
Item: 24260639
Model: LUXA7GF-B-100
No reviews yet
Price is $64.29
Unit of measure 100/Pack
Free delivery by Thu, May 07
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JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Clear, 50/Pack (74354I)~#|#~sp137084242_sc7
Item: 1589077
Model: 74354I
No reviews yet
Price is $51.79
Unit of measure 50/Pack
Free delivery by Tue, May 05
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JAM Paper A8 Translucent Vellum Invitation Envelopes, 5.5 x 8.125, Clear, 25/Pack (79462)~#|#~sp137085617_sc7
Item: 262116
Model: 79462
No reviews yet
Price is $30.79
Unit of measure 25/Pack
Delivery by Tue, May 05
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LUX #14 Open End Envelopes (5 x 11 1/2) 500/Box, 28lb. White (WS-5200-500)~#|#~m004063926_sc7
Item: 2146549
Model: WS-5200-500
No reviews yet
Price is $116.89
Unit of measure 500/Pack
Free delivery by Thu, May 07
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JAM Paper Self Seal #1 Coin Business Envelopes, 2 1/4" x 3 1/2", White, 100/Pack (356838552D)~#|#~6E6034D0-FFF9-43C6-805BFA77B6CDA080_sc7
Item: 24557931
Model: 356838552D
No reviews yet
Price is $31.69
Unit of measure 100/Pack
Delivery by Tue, May 05
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JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Red Recycled, 25/Pack (356730551)~#|#~m003757873_sc7JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Red Recycled, 25/Pack (356730551)~#|#~m003562853_sc7
Item: 2103449
Model: 356730551
No reviews yet
Price is $11.49
Unit of measure 25/Pack
Delivery by Tue, May 05
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JAM Paper A2 Colored Invitation Envelopes, 4.375 x 5.75, Orange Recycled, 50/Pack (WDBH602I)~#|#~m003905270_sc7JAM Paper A2 Colored Invitation Envelopes, 4.375 x 5.75, Orange Recycled, 50/Pack (WDBH602I)~#|#~m003905269_sc7
Item: 1589478
Model: WDBH602I
No reviews yet
Price is $20.49
Unit of measure 50/Pack
Delivery by Tue, May 05
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JAM Paper Currency Envelope, 3" x 6 11/16", White, 250/Box (216313691I)~#|#~sp137086240_sc7
Item: 2633147
Model: 216313691I
Price is $65.39
Unit of measure 250/Box
Free delivery by Tue, May 05
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JAM Paper Self Seal #3 Coin Business Envelopes, 2 1/2" x 4 1/4", White, 100/Pack (356838553D)~#|#~47C34D63-055A-4A93-A9B9AEE16D5D2414_sc7
Item: 24557995
Model: 356838553D
Price is $31.69
Unit of measure 100/Pack
Delivery by Tue, May 05
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LUX 5 1/2 x 5 1/2 Square Envelopes, 50/Box, Baby Blue (EX8515-13-50)~#|#~m000081471_sc7
Item: 282102
Model: EX8515-13-50
No reviews yet
Price is $42.89
Unit of measure 50/Pack
Free delivery by Thu, May 07
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Pack, Silver Metallic (4872-06-50)~#|#~sp14807603_sc7
Item: 24260983
Model: 4872-06-50
Price is $16.59
Unit of measure 50/Pack
Delivery by Thu, May 07
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JAM Paper Booklet Envelope, 9" x 12", Navy Blue, 250/Box (263916011H)~#|#~sp121512595_sc7JAM Paper Booklet Envelope, 9" x 12", Navy Blue, 250/Box (263916011H)~#|#~sp121512594_sc7
Item: 24006095
Model: 263916011H
No reviews yet
Price is $231.39
Unit of measure 250/Box
Free delivery by Tue, May 05
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LUX Open End Business Envelopes, 9" x 12", White, 500/Box (1590-WLI-500)~#|#~9F5F056D-43CF-4271-A01396184D25E5B7_sc7
Item: 1277785
Model: 1590-WLI-500
No reviews yet
Price is $293.19
Unit of measure 500/Box
Free delivery by Thu, May 07
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JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Blue Recycled, 25/Pack (1526764)~#|#~m003757920_sc7JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Blue Recycled, 25/Pack (1526764)~#|#~m003750601_sc7
Item: 1227745
Model: 1526764
Price is $16.39
Unit of measure 25/Pack
Delivery by Tue, May 05
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JAM Paper Plastic Envelopes with Button and String Tie Closure, Index Booklet, 5.5 x 7.5, Purple, 12/Pack (920B1PU)~#|#~sp73451318_sc7JAM Paper Plastic Envelopes with Button and String Tie Closure, Index Booklet, 5.5 x 7.5, Purple, 12/Pack (920B1PU)~#|#~sp73451324_sc7
Item: 1589498
Model: 920B1PU
No reviews yet
Price is $28.19
Unit of measure 12/Pack
Delivery by Tue, May 05
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, 70lb. Bright White (20677-250)~#|#~m000081998_sc7
Item: 515446
Model: 20677-250
No reviews yet
Price is $100.19
Free delivery by Thu, May 07
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JAM Paper 13 1/2 Square Invitation Envelope, 13 1/2" x 13 1/2", White, 25/Pack (3992323)~#|#~sp118566188_sc7JAM Paper 13 1/2 Square Invitation Envelope, 13 1/2" x 13 1/2", White, 25/Pack (3992323)~#|#~sp118566187_sc7
Item: 261312
Model: 3992323
Price is $43.59
Unit of measure 25/Pack
Free delivery by Tue, May 05
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LUX 5 x 5 Square Envelopes, 50/Box, Navy (LUX-8505-103-50)~#|#~m000081531_sc7
Item: 282165
Model: LUX-8505-103-50
No reviews yet
Price is $13.95
Unit of measure 50/Pack
Delivery by Thu, May 07
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Seafoam (LUX-4880-113-50)~#|#~m005902348_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Seafoam (LUX-4880-113-50)~#|#~m005823969_sc7
Item: 282822
Model: LUX-4880-113-50
Price is $26.09
Unit of measure 50/Pack
Delivery by Thu, May 07
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JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Purple, 12/Pack (921B1PU)~#|#~m004858138_sc7JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Purple, 12/Pack (921B1PU)~#|#~m004857981_sc7
Item: 1227723
Model: 921B1PU
No reviews yet
Price is $33.19
Unit of measure 12/Pack Price per unit $2.77/Envelope
Delivery by Tue, May 05
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Partners Tyvek Envelopes, 10" x 13", Green, 100/Case (TYC1013G)~#|#~m004079055_sc7
Item: 2301086
Model: TYC1013G
No reviews yet
Price is $137.39
Unit of measure 100/Carton
Free delivery by Tue, May 05
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JAM Paper #14 Kraft Policy Business Envelopes, 5 x 11.5, Brown Kraft Paper Bag, 25/Pack (36317569)~#|#~m004671962_sc7JAM Paper #14 Kraft Policy Business Envelopes, 5 x 11.5, Brown Kraft Paper Bag, 25/Pack (36317569)~#|#~m004671961_sc7
Item: 261541
Model: 36317569
Price is $17.09
Unit of measure 25/Pack
Delivery by Tue, May 05
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LUX 10" x 13" 80lbs. Square Flap Open End Envelopes, Midnight Black, 50/Pack~#|#~F94C1052-DA12-4FBB-978D87122F6FC095_sc7LUX 10" x 13" 80lbs. Square Flap Open End Envelopes, Midnight Black, 50/Pack~#|#~F05F8AD4-5D23-47C8-B506EA029BB78E2E_sc7
Item: 282045
Model: 87733-50
No reviews yet
Price is $48.69
Unit of measure 50/Pack
Free delivery by Thu, May 07
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JAM Paper® Plastic Envelopes with Button and String Tie Closure, Letter Booklet, 9.75 x 13, Lime Green, 12/Pack (1221566)~#|#~m004858019_sc7JAM Paper® Plastic Envelopes with Button and String Tie Closure, Letter Booklet, 9.75 x 13, Lime Green, 12/Pack (1221566)~#|#~m004857853_sc7
Item: 263045
Model: 1221566
Price is $38.39
Unit of measure 12/Pack Price per unit $3.20/Envelope
Free delivery by Tue, May 05
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 250/Box, Holiday Red (FE4275-15-250)~#|#~m000081919_sc7
Item: 387832
Model: FE4275-15-250
Price is $42.49
Unit of measure 250/Box
Free delivery by Thu, May 07
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LUX 70lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Grocery Bag Brown, 1000/BX~#|#~m004940396_sc7LUX 70lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Grocery Bag Brown, 1000/BX~#|#~m005823987_sc7
Item: 384582
Model: 4860-GB-1000
No reviews yet
Price is $214.69
Unit of measure 1000/Box
Free delivery by Thu, May 07
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Pack, Brilliant White - 100% Cotton (4865-SBW-50)~#|#~sp14807719_sc7
Item: 24260309
Model: 4865-SBW-50
No reviews yet
Price is $16.19
Unit of measure 50/Pack
Delivery by Thu, May 07
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LUX Self Seal A7 Invitation Envelope 5 1/4" x 7 1/4", Avocado Green, 50/Pack (EX4880-27-50)~#|#~F9C42045-9B12-49F2-B3303E6C11ADB6CB_sc7LUX Self Seal A7 Invitation Envelope 5 1/4" x 7 1/4", Avocado Green, 50/Pack (EX4880-27-50)~#|#~799990B4-4014-4F33-A54AB2EC77B40009_sc7
Item: 282729
Model: EX4880-27-50
No reviews yet
Price is $31.29
Unit of measure 50/Pack
Delivery by Thu, May 07
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LUX 5 3/4" x 8 3/4" 80lbs. A9 Invitation Envelopes W/Peel & Press, Quartz Metallic, 50/Pack~#|#~m000081730_sc7
Item: 282941
Model: 5395-08-50
Price is $34.79
Unit of measure 50/Pack
Delivery by Thu, May 07
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JAM Paper 9 x 9 Square Invitation Envelopes, White, 25/Pack (4232)~#|#~sp115352016_sc7JAM Paper 9 x 9 Square Invitation Envelopes, White, 25/Pack (4232)~#|#~sp115352015_sc7
Item: 263923
Model: 4232
Price is $25.89
Unit of measure 25/Pack
Delivery by Tue, May 05
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JAM Paper Monarch Strathmore Invitation Envelopes, 3.875 x 7.5, Bright White Wove, 25/Pack (196556)~#|#~m007159199_sc7JAM Paper Monarch Strathmore Invitation Envelopes, 3.875 x 7.5, Bright White Wove, 25/Pack (196556)~#|#~m007159198_sc7
Item: 260858
Model: 196556
No reviews yet
Price is $12.69
Unit of measure 25/Pack
Delivery by Tue, May 05
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JAM Paper A7 Invitation Envelopes, 5.25 x 7.25, Aqua Blue, 50/Pack (1523985I)~#|#~m002934475_sc7JAM Paper A7 Invitation Envelopes, 5.25 x 7.25, Aqua Blue, 50/Pack (1523985I)~#|#~m002934474_sc7
Item: 1589570
Model: 1523985I
No reviews yet
Price is $24.49
Unit of measure 50/Pack
Delivery by Tue, May 05
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Navy (LUX-4875-103-50)~#|#~m000081934_sc7
Item: 282637
Model: LUX-4875-103-50
No reviews yet
Price is $26.09
Unit of measure 50/Pack
Delivery by Thu, May 07
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JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Red, 12/Pack (921B1RE)~#|#~m004858099_sc7JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Red, 12/Pack (921B1RE)~#|#~m004857952_sc7
Item: 262959
Model: 921B1RE
Price is $41.59
Unit of measure 12/Pack Price per unit $3.47/Envelope
Free delivery by Tue, May 05
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JAM Paper 9 x 12 Booklet Colored Envelopes, Blue Recycled, 50/pack (5156774i)~#|#~sp129636841_sc7JAM Paper 9 x 12 Booklet Colored Envelopes, Blue Recycled, 50/pack (5156774i)~#|#~sp129636840_sc7
Item: 2478147
Model: 5156774I
Price is $38.49
Unit of measure 50/Pack
Free delivery by Tue, May 05
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LUX A10 Invitation Envelopes (6 x 9 1/2) 50/Pack, Gold Metallic (4590-07-50)~#|#~sp12274947_sc7LUX A10 Invitation Envelopes (6 x 9 1/2) 50/Pack, Gold Metallic (4590-07-50)~#|#~sp14081682_sc7
Item: 24216252
Model: 4590-07-50
No reviews yet
Price is $29.49
Unit of measure 50/Pack
Delivery by Thu, May 07
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Quality Park Survivor First Class Tyvek Self Seal Catalog Envelope, 10" x 13", White, 100/Carton (R4210)~#|#~F0D498F2-EB33-48DE-A7CD730F72E5162B_sc7Quality Park Survivor First Class Tyvek Self Seal Catalog Envelope, 10" x 13", White, 100/Carton (R4210)~#|#~EBA3A9BF-4599-4064-9B3642237A56F812_sc7
Quality Park Survivor First Class Tyvek Self Seal Catalog Envelope, 10" x 13", White, 100/Carton (R4210) is Out of stock
Item: 2623493
Model: QUAR4210
No reviews yet
Price is $268.99
Unit of measure 100/Carton
Quality Park Fashion Clasp & Moistenable Glue Catalog Envelope, 9" x 12", Blue, 10/Pack (38737)~#|#~s0171297_sc7
Quality Park Fashion Clasp & Moistenable Glue Catalog Envelope, 9" x 12", Blue, 10/Pack (38737) is Out of stock
Item: 507885
Model: QUA38737
Price is $17.89
Unit of measure 10/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.