Square Envelopes

LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, 24lb. Bright White (4865-W-500)~#|#~m000211232_sc7
Item: 515392
Model: 4865-W-500
No reviews yet
Price is $89.69
Free delivery by Mon, May 04
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LUX 6 1/2 x 6 1/2 Square Envelopes, 250/Box, 70lb. Bright White (10928-250)~#|#~m000081546_sc7
Item: 383913
Model: 10928-250
No reviews yet
Price is $99.39
Unit of measure 250/Box
Free delivery by Mon, May 04
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JAM Paper Plastic Envelopes with Button and String Tie Closure, Index Booklet, 5.5 x 7.5, Orange, 12/Pack (920B1OR)~#|#~sp89840029_sc7JAM Paper Plastic Envelopes with Button and String Tie Closure, Index Booklet, 5.5 x 7.5, Orange, 12/Pack (920B1OR)~#|#~sp89840102_sc7
Item: 1227729
Model: 920B1OR
No reviews yet
Price is $26.59
Unit of measure 12/Pack Price per unit $2.22/Envelope
Delivery by Wed, Apr 29
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JAM Paper 6 x 9 Open End Catalog Colored Envelopes, Red Recycled, 100/Pack (V0128139)~#|#~m002934044_sc7JAM Paper 6 x 9 Open End Catalog Colored Envelopes, Red Recycled, 100/Pack (V0128139)~#|#~m002934043_sc7
Item: 261680
Model: V0128139
Price is $45.19
Unit of measure 100/Box
Free delivery by Wed, Apr 29
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LUX 9" x 12" Open End Window Envelopes, Sunflower Yellow (LUX-1590-12-250)~#|#~m001406670_sc7
Item: 1277759
Model: LUX-1590-12-250
No reviews yet
Price is $169.79
Unit of measure 250/Box
Free delivery by Mon, May 04
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Green, 25/Pack (15862)~#|#~sp111772450_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Green, 25/Pack (15862)~#|#~sp111772449_sc7
Item: 261274
Model: 15862
Price is $10.29
Unit of measure 25/Pack
Delivery by Wed, Apr 29
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LUX #1 Coin Envelopes (2 1/4 x 3 1/2) 50/Box, Holiday Green (LUX-1CO-L17-50)~#|#~m001149688_sc7
Item: 1030043
Model: LUX-1CO-L17-50
Price is $23.89
Delivery by Mon, May 04
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JAM Paper Self Seal Catalog Envelope, 9" x 12", Black, 50/Pack (260147509I)~#|#~9DF9A953-E7E8-4594-8B94E2966DC5825E_sc7
Item: 24557987
Model: 260147509I
No reviews yet
Price is $45.19
Unit of measure 50/Pack
Free delivery by Wed, Apr 29
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JAM Paper Kraft A6 Invitation Envelopes, 4.75 x 6.5, Brown Kraft Paper Bag, Bulk 250/Box (LEKR650H)~#|#~sp115352003_sc7JAM Paper Kraft A6 Invitation Envelopes, 4.75 x 6.5, Brown Kraft Paper Bag, Bulk 250/Box (LEKR650H)~#|#~sp115352002_sc7
Item: 1589019
Model: LEKR650H
Price is $89.49
Unit of measure 250/Box
Free delivery by Wed, Apr 29
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Pack, White Linen (4875-WLI-50)~#|#~sp14807777_sc7
Item: 24261356
Model: 4875-WLI-50
No reviews yet
Price is $15.59
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX #10 Square Flap Invitation Envelopes (4 1/8 x 9 1/2) 50/Pack, Pool (LUX-4860-102-50)~#|#~sp14807463_sc7
Item: 24260625
Model: LUX-4860-102-50
No reviews yet
Price is $25.19
Unit of measure 50/Pack
Delivery by Mon, May 04
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JAM Paper A2 Colored Invitation Envelopes, 4.375 x 5.75, Ultra Lime Green, 50/Pack (WDBH610I)~#|#~m003905272_sc7JAM Paper A2 Colored Invitation Envelopes, 4.375 x 5.75, Ultra Lime Green, 50/Pack (WDBH610I)~#|#~m003905271_sc7
Item: 1589064
Model: WDBH610I
No reviews yet
Price is $20.49
Unit of measure 50/Pack
Delivery by Wed, Apr 29
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JAM Paper 9 x 12 Booklet Translucent Vellum Envelopes, Gold, 25/Pack (1592176)~#|#~m003904786_sc7JAM Paper 9 x 12 Booklet Translucent Vellum Envelopes, Gold, 25/Pack (1592176)~#|#~m003904785_sc7
Item: 262259
Model: 1592176
No reviews yet
Price is $57.99
Unit of measure 25/Pack
Free delivery by Wed, Apr 29
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JAM Paper #10 Business Envelopes, 4.125 x 9.5, Navy Blue, Bulk 1000/Carton (LEBA367B)~#|#~m003905150_sc7JAM Paper #10 Business Envelopes, 4.125 x 9.5, Navy Blue, Bulk 1000/Carton (LEBA367B)~#|#~m003905149_sc7
Item: 261728
Model: LEBA367B
No reviews yet
Price is $226.69
Unit of measure 1000/Carton
Free delivery by Wed, Apr 29
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JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Violet Purple Recycled, Bulk 1000/Carton (356730560C)~#|#~m003757872_sc7JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Violet Purple Recycled, Bulk 1000/Carton (356730560C)~#|#~m003562852_sc7
Item: 2103369
Model: 356730560C
No reviews yet
Price is $272.99
Unit of measure 1000/Carton
Free delivery by Wed, Apr 29
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JAM Paper Peel & Seal Kraft Open End Catalog Envelope, 9" x 12", Brown, 500/Pack (13034231C)~#|#~sp20131895_sc7JAM Paper Peel & Seal Kraft Open End Catalog Envelope, 9" x 12", Brown, 500/Pack (13034231C)~#|#~sp20131894_sc7
Item: 24295083
Model: 13034231C
Price is $202.99
Unit of measure 500/Pack
Free delivery by Wed, Apr 29
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JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, Black Linen, 25/Pack (64345)~#|#~m003904604_sc7JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, Black Linen, 25/Pack (64345)~#|#~m003904603_sc7
Item: 261568
Model: 64345
Price is $14.29
Unit of measure 25/Pack
Delivery by Wed, Apr 29
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JAM Paper 10 x 13 Open End Catalog Envelopes, Dark Purple, 100/Pack (1287032f)~#|#~sp4800483_sc7JAM Paper 10 x 13 Open End Catalog Envelopes, Dark Purple, 100/Pack (1287032f)~#|#~sp4800482_sc7
Item: 2633140
Model: 1287032F
No reviews yet
Price is $127.89
Unit of measure 100/Pack
Free delivery by Wed, Apr 29
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JAM Paper Peel & Seal #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Christmas Red, 1000/Carton (11789B)~#|#~sp36388124_sc7JAM Paper Peel & Seal #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Christmas Red, 1000/Carton (11789B)~#|#~sp36388044_sc7
Item: 260851
Model: 11789B
Price is $261.29
Unit of measure 1000/Carton
Free delivery by Wed, Apr 29
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LUX 9 x 12 Open End Envelopes, 250/Box, Black Linen (4894-BLI-250)~#|#~m001149711_sc7
Item: 1028614
Model: 4894-BLI-250
No reviews yet
Price is $154.19
Free delivery by Mon, May 04
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JAM Paper A9 Foil Lined Invitation Envelopes, 5.75 x 8.75, White with Red Foil, 25/Pack (76798)~#|#~m003904630_sc7JAM Paper A9 Foil Lined Invitation Envelopes, 5.75 x 8.75, White with Red Foil, 25/Pack (76798)~#|#~m003904629_sc7
Item: 262767
Model: 76798
Price is $20.49
Unit of measure 25/Pack
Delivery by Wed, Apr 29
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JAM Paper #16 Policy Business Envelopes, 5.875 x 12, White, 25/Pack (416211891)~#|#~m000141631_sc7
Item: 366666
Model: 416211891
Price is $17.29
Unit of measure 25/Pack
Delivery by Wed, Apr 29
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LUX 6 1/2 x 9 1/2 Open End Envelopes 50/Pack, 24lb. Bright White (1941-50)~#|#~sp14807489_sc7
Item: 24260831
Model: 1941-50
Price is $50.79
Unit of measure 50/Pack
Free delivery by Mon, May 04
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LUX 6 x 6 Square Envelopes 50/Pack, Citrus (8525-20-50)~#|#~sp14807811_sc7
Item: 24260419
Model: 8525-20-50
No reviews yet
Price is $7.59
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 250/Box, Seafoam (LUX-4872-113250)~#|#~m000081873_sc7
Item: 517555
Model: LUX-4872-113250
Price is $64.79
Free delivery by Mon, May 04
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LUX 5 1/2 x 5 1/2 Square Envelopes, 500/Box, 70lb. Bright White (10902-500)~#|#~m000081469_sc7
Item: 516532
Model: 10902-500
No reviews yet
Price is $77.79
Free delivery by Mon, May 04
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 500/Box, Natural (5875-01-500)~#|#~m000161341_sc7
Item: 385420
Model: 5875-01-500
No reviews yet
Price is $105.99
Unit of measure 500/Box
Free delivery by Mon, May 04
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LUX Security Tinted #10 Window Envelope, 4 1/2" x 9 1/2", White, 1000/Pack (WS-3133-1M)~#|#~m004064002_sc7
Item: 2146617
Model: WS-3133-1M
No reviews yet
Price is $173.99
Unit of measure 1000/Pack
Free delivery by Mon, May 04
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Smoke (LUX-4872-22-50)~#|#~m000081875_sc7
Item: 282564
Model: LUX-4872-22-50
No reviews yet
Price is $14.95
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX 5 1/2 x 5 1/2 Square Envelopes, 500/Box, Grocery Bag (8515-GB-500)~#|#~m001623016_sc7
Item: 514816
Model: 8515-GB-500
No reviews yet
Price is $99.29
Free delivery by Mon, May 04
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LUX 4 3/8" x 5 3/4" 80lbs. Vellum A2 Invitation Envelopes W/Peel & Press, Citrus Yellow~#|#~m000081776_sc7
Item: 282444
Model: FE4270-20-50
Price is $13.69
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX #10 Square Flap Invitation Envelopes (4 1/8 x 9 1/2) 50/Pack, Limelight (LUX-4860-101-50)~#|#~sp14807404_sc7
Item: 24260863
Model: LUX-4860-101-50
No reviews yet
Price is $19.69
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX 9" x 12" Open End Window Envelopes, Ruby Red (LUX-1590-18-250)~#|#~DE36A25C-3E90-4567-AE19006800DE7F95_sc7LUX 9" x 12" Open End Window Envelopes, Ruby Red (LUX-1590-18-250)~#|#~734C7B95-99B6-4A28-945AA7547DB0ACA5_sc7
Item: 1277756
Model: LUX-1590-18-250
No reviews yet
Price is $124.69
Unit of measure 250/Box
Free delivery by Mon, May 04
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JAM Paper 11.5" x 11.5" Large Square Invitation Envelopes, White, 50/Pack (3992321I)~#|#~sp118566184_sc7JAM Paper 11.5" x 11.5" Large Square Invitation Envelopes, White, 50/Pack (3992321I)~#|#~sp118566189_sc7
Item: 1588470
Model: 3992321I
No reviews yet
Price is $72.39
Unit of measure 50/Pack
Free delivery by Wed, Apr 29
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JAM Paper #3 Coin Business Envelopes, 2.5 x 4.25, Black, 100/Pack (356730544B)~#|#~m003757867_sc7JAM Paper #3 Coin Business Envelopes, 2.5 x 4.25, Black, 100/Pack (356730544B)~#|#~m003562849_sc7
Item: 2103473
Model: 356730544B
No reviews yet
Price is $39.29
Unit of measure 100/Pack
Free delivery by Wed, Apr 29
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JAM Paper A6 Parchment Invitation Envelopes, 4.75 x 6.5, Blue Recycled, 25/Pack (10296)~#|#~m003904489_sc7JAM Paper A6 Parchment Invitation Envelopes, 4.75 x 6.5, Blue Recycled, 25/Pack (10296)~#|#~m003904488_sc7
JAM Paper A6 Parchment Invitation Envelopes, 4.75 x 6.5, Blue Recycled, 25/Pack (10296) is Out of stock
Item: 263944
Model: 10296
No reviews yet
Price is $10.89
Unit of measure 25/Pack
LUX 5.5" x 8.5" Kraft Open End - 24lb. Brown Kraft 50/Pack, 24lb. Brown Kraft (WS-4584-50)~#|#~B448E156-2AB9-42D4-B27E023CED6F0F50_sc7LUX 5.5" x 8.5" Kraft Open End - 24lb. Brown Kraft 50/Pack, 24lb. Brown Kraft (WS-4584-50)~#|#~80C58C37-45E6-467E-A9AF313EC314AE4A_sc7
LUX 5.5" x 8.5" Kraft Open End - 24lb. Brown Kraft 50/Pack, 24lb. Brown Kraft (WS-4584-50) is Out of stock
Item: 23995479
Model: WS-4584-50
No reviews yet
Price is $19.19
Unit of measure 50/Pack
JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Green, 500/Pack (15862H)~#|#~sp111772450_sc7JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Green, 500/Pack (15862H)~#|#~sp111772449_sc7
JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Green, 500/Pack (15862H) is Out of stock
Item: 1589640
Model: 15862H
No reviews yet
Price is $155.59
Unit of measure 500/Box
JAM Paper A6 Translucent Vellum Invitation Envelopes, 4.75 x 6.5, Clear, 50/Pack (13756I)~#|#~sp123308053_sc7JAM Paper A6 Translucent Vellum Invitation Envelopes, 4.75 x 6.5, Clear, 50/Pack (13756I)~#|#~sp123308052_sc7
JAM Paper A6 Translucent Vellum Invitation Envelopes, 4.75 x 6.5, Clear, 50/Pack (13756I) is Out of stock
Item: 1588873
Model: 13756I
No reviews yet
Price is $34.29
Unit of measure 50/Pack
JAM Paper A8 Parchment Invitation Envelopes, 5.5 x 8.125, Natural Recycled, 50/Pack (5029I)~#|#~m002168693_sc7
JAM Paper A8 Parchment Invitation Envelopes, 5.5 x 8.125, Natural Recycled, 50/Pack (5029I) is Out of stock
Item: 1589124
Model: 5029I
No reviews yet
Price is $18.49
Unit of measure 50/Pack

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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.