JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, White with Gold Foil, 50/Pack (3243663I)~#|#~sp115352141_sc7JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, White with Gold Foil, 50/Pack (3243663I)~#|#~sp115352140_sc7
Item: 1589215
Model: 3243663I
Price is $27.19
Unit of measure 50/Pack
Delivery by Mon, Dec 15
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JAM Paper Open End #12 Kraft Currency Envelope, 4 3/4" x 11", Brown Kraft Paper Bag, 50/Pack (2119018862I)~#|#~m004672048_sc7JAM Paper Open End #12 Kraft Currency Envelope, 4 3/4" x 11", Brown Kraft Paper Bag, 50/Pack (2119018862I)~#|#~m004672047_sc7
Item: 1588410
Model: 2119018862I
No reviews yet
Price is $28.19
Unit of measure 50/Pack
Delivery by Mon, Dec 15
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Quality Park Redi-Seal Self Seal #10 Double Window Envelope, 4 1/2" x 9 1/2", White Wove, 500/Pack (24559-QP-500)~#|#~sp5822112_sc7Quality Park Redi-Seal Self Seal #10 Double Window Envelope, 4 1/2" x 9 1/2", White Wove, 500/Pack (24559-QP-500)~#|#~sp79645420_sc7
Item: 23995432
Model: 24559-QP-500
Price is $135.29
Unit of measure 500/Pack
Free delivery by Wed, Dec 17
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LUX 70lb 4 1/8"x9 1/2" Sqaure Flap #10 Envelopes, Magenta Pink, 500/BX~#|#~m004940454_sc7LUX 70lb 4 1/8"x9 1/2" Sqaure Flap #10 Envelopes, Magenta Pink, 500/BX~#|#~m005823998_sc7
Item: 516416
Model: EX4860-10-500
Price is $137.99
Free delivery by Wed, Dec 17
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JAM Paper 9 x 12 Booklet Envelopes, Navy Blue, 25/Pack (263916011)~#|#~sp121512037_sc7JAM Paper 9 x 12 Booklet Envelopes, Navy Blue, 25/Pack (263916011)~#|#~sp121512036_sc7
Item: 261714
Model: 263916011
No reviews yet
Price is $31.19
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Gold Metallic (5365-07-50)~#|#~m000081706_sc7
Item: 282368
Model: 5365-07-50
Price is $24.39
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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JAM Paper 9 x 12 Booklet Colored Envelopes, Ultra Lime Green, 25/Pack (5156771)~#|#~m003904883_sc7JAM Paper 9 x 12 Booklet Colored Envelopes, Ultra Lime Green, 25/Pack (5156771)~#|#~m003904882_sc7
Item: 261162
Model: 5156771
Price is $21.59
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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LUX 9 x 12 Booklet Envelopes 50/Pack, Silver Metallic (5350-06-50)~#|#~sp14807553_sc7
Item: 24261154
Model: 5350-06-50
No reviews yet
Price is $38.91
Unit of measure 50/Pack
Free delivery by Wed, Dec 17
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LUX Moistenable Glue Document Envelope, 9" x 12", Bright White, 500/Pack (8193-TAX-500)~#|#~sp20150752_sc7
Item: 24294204
Model: 8193-TAX-500
Price is $113.89
Unit of measure 500/Pack
Free delivery by Wed, Dec 17
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 500/Box, 24lb. White~#|#~m004064012_sc7
Item: 2146364
Model: 39892-MI-500
No reviews yet
Price is $106.89
Unit of measure 500/Pack
Free delivery by Wed, Dec 17
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Pack, Gray - 100% Cotton (4880-SG-250)~#|#~sp14807898_sc7
Item: 24261130
Model: 4880-SG-250
No reviews yet
Price is $89.09
Unit of measure 250/Pack
Free delivery by Wed, Dec 17
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JAM Paper #12 Kraft Policy Business Envelopes, 4.75 x 11, Brown Kraft Paper Bag, 25/Pack (2119018862)~#|#~m004672048_sc7JAM Paper #12 Kraft Policy Business Envelopes, 4.75 x 11, Brown Kraft Paper Bag, 25/Pack (2119018862)~#|#~m004672047_sc7
Item: 261563
Model: 2119018862
No reviews yet
Price is $15.89
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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JAM Paper A2 Strathmore Invitation Envelopes, 4.375 x 5.75, Natural White Linen, 50/Pack (99761I)~#|#~m007159157_sc7JAM Paper A2 Strathmore Invitation Envelopes, 4.375 x 5.75, Natural White Linen, 50/Pack (99761I)~#|#~m007159156_sc7
Item: 1588915
Model: 99761I
No reviews yet
Price is $20.49
Unit of measure 50/Pack
Delivery by Mon, Dec 15
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Navy (LUX-4865-103-50)~#|#~m000081724_sc7
Item: 282387
Model: LUX-4865-103-50
Price is $12.79
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Red, 50/Pack (25048I)~#|#~m002934135_sc7JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Red, 50/Pack (25048I)~#|#~m002934134_sc7
Item: 1588622
Model: 25048I
No reviews yet
Price is $22.99
Unit of measure 50/Pack
Delivery by Mon, Dec 15
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 1000/Box, 24lb. Bright White (4865-W-1000)~#|#~m000211232_sc7
Item: 515394
Model: 4865-W-1000
Price is $119.59
Free delivery by Wed, Dec 17
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LUX 7 1/4" x 5 1/4" 70lbs Square Flap Vertical Envelopes W/Peel & Press, Bright White~#|#~96B1A5D7-B1FB-479F-A86CCE11028BC25D_sc7
Item: 282861
Model: 4880V-W-50
No reviews yet
Price is $16.09
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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JAM Paper A10 Invitation Envelopes, 6 x 9.5, White, 50/Pack (12039I)~#|#~sp115352023_sc7JAM Paper A10 Invitation Envelopes, 6 x 9.5, White, 50/Pack (12039I)~#|#~sp115352019_sc7
Item: 1588816
Model: 12039I
Price is $16.29
Unit of measure 50/Pack
Delivery by Mon, Dec 15
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Quality Park Gummed Booklet Envelopes, 6" x 9", White Wove, 100/Box (QUA37113)~#|#~sp42718489_sc7Quality Park Gummed Booklet Envelopes, 6" x 9", White Wove, 100/Box (QUA37113)~#|#~sp42718488_sc7
Item: 813372
Model: QUA37113
Price is $58.49
Unit of measure 100/Box
Free Next-Day eligible by tomorrow
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Copper Metallic (5380-11-50)~#|#~m000081698_sc7
Item: 282750
Model: 5380-11-50
No reviews yet
Price is $20.39
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, White, 25/Pack (MOOP6250LD)~#|#~sp111772291_sc7JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, White, 25/Pack (MOOP6250LD)~#|#~sp111772290_sc7
Item: 365868
Model: MOOP6250LD
Price is $10.49
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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JAM Paper A8 Invitation Envelope, 5 1/2" x 8 1/8", White, 100/Pack (4023981C)~#|#~sp121512431_sc7JAM Paper A8 Invitation Envelope, 5 1/2" x 8 1/8", White, 100/Pack (4023981C)~#|#~sp121512398_sc7
Item: 2103270
Model: 4023981C
Price is $28.99
Unit of measure 100/Pack
Delivery by Mon, Dec 15
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Quality Park Open End Kraft Catalog Envelopes, 15" x 20", Brown Kraft, 25/Box (QUA42355)~#|#~sp42804966_sc7Quality Park Open End Kraft Catalog Envelopes, 15" x 20", Brown Kraft, 25/Box (QUA42355)~#|#~sp42804965_sc7
Item: 507902
Model: QUA42355
Price is $65.59
Unit of measure 25/Box
Free delivery by Fri, Dec 12
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LUX 4 x 4 Square Envelopes, 50/Box, 70lb. Bright White (8504-AO-50)~#|#~m000081468_sc7
Item: 282099
Model: 8504-AO-50
Price is $12.69
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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LUX Open End Open End Window Envelope, 9" x 12", White Linen, 250/Pack (1590-WLI-250)~#|#~0951B3CF-B968-40F6-A6BD04D75E60B5AA_sc7
Item: 1277765
Model: 1590-WLI-250
No reviews yet
Price is $161.29
Unit of measure 250/Box
Free delivery by Wed, Dec 17
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Jupiter Metallic (5375-20-50)~#|#~m000081921_sc7
Item: 282622
Model: 5375-20-50
No reviews yet
Price is $22.95
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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JAM Paper 6" x 9" Open End Catalog Envelopes with Clasp Closure, Black, 10/Pack (87915B)~#|#~sp61031308_sc7JAM Paper 6" x 9" Open End Catalog Envelopes with Clasp Closure, Black, 10/Pack (87915B)~#|#~sp61031136_sc7
Item: 38323
Model: 87915B
No reviews yet
Price is $13.69
Unit of measure 10/Pack
Delivery by Mon, Dec 15
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LUX 5 1/4 x 5 1/4 Square Envelopes 50/Pack, Natural (8510-01-50)~#|#~sp14807815_sc7
Item: 24260745
Model: 8510-01-50
Price is $13.29
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", White, 50/Pack (49856I)~#|#~sp115352044_sc7JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", White, 50/Pack (49856I)~#|#~sp115352043_sc7
Item: 1588599
Model: 49856I
Price is $17.09
Unit of measure 50/Pack
Delivery by Mon, Dec 15
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JAM Paper 4Bar A1 Strathmore Invitation Envelopes, 3.625 x 5.125, Natural White Wove, 25/Pack (194891)~#|#~m007159197_sc7JAM Paper 4Bar A1 Strathmore Invitation Envelopes, 3.625 x 5.125, Natural White Wove, 25/Pack (194891)~#|#~m007159196_sc7
Item: 262541
Model: 194891
No reviews yet
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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Over 30
Ship-Lite Self Seal Catalog Envelopes, 10" x 13", White, 100/Carton (SLE10132WS)~#|#~sp48967650_sc7
Item: 947671
Model: SLE10132WS
Price is $199.09
Unit of measure 100/Carton
Free delivery by Mon, Dec 15
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Over 30
LUX 9 x 12 Kraft Open End Envelopes w/Security Tint, 28lb. White, 50/Box (WS-4894-ST-50)~#|#~m004063773_sc7
Item: 2146105
Model: WS-4894-ST-50
No reviews yet
Price is $40.89
Unit of measure 50/Pack
Free delivery by Wed, Dec 17
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JAM Paper Kraft A6 Invitation Envelopes, 4.75 x 6.5, Brown Kraft Paper Bag, 50/Pack (LEKR650I)~#|#~sp115352003_sc7JAM Paper Kraft A6 Invitation Envelopes, 4.75 x 6.5, Brown Kraft Paper Bag, 50/Pack (LEKR650I)~#|#~sp115352002_sc7
Item: 1588909
Model: LEKR650I
No reviews yet
Price is $24.49
Unit of measure 50/Pack
Delivery by Mon, Dec 15
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Pack, Quartz Metallic (4872-08-50)~#|#~250367C6-45DB-4F88-9177FAFC4B1AFD73_sc7LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Pack, Quartz Metallic (4872-08-50)~#|#~4D69F00C-F9F6-49E5-881FF0011E5F45B6_sc7
Item: 24260555
Model: 4872-08-50
No reviews yet
Price is $15.19
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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JAM Paper Self Seal Catalog Envelope, 12" x 15 1/2", Brown Kraft, 100/Pack (13034236D)~#|#~9F09E492-EDDD-41BD-B49DC74CD5F28DFC_sc7
Item: 24557950
Model: 13034236D
No reviews yet
Price is $56.59
Unit of measure 100/Pack
Free delivery by Mon, Dec 15
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Quality Park Redi-Seal Self Seal Security Tinted #8 Double Window Envelope, 3 5/8" x 8 5/8", White Wove, 1000/Pack (24539-1000)~#|#~sp5822112_sc7Quality Park Redi-Seal Self Seal Security Tinted #8 Double Window Envelope, 3 5/8" x 8 5/8", White Wove, 1000/Pack (24539-1000)~#|#~sp5875517_sc7
Item: 23996467
Model: 24539-1000
Price is $229.89
Unit of measure 1000/Pack
Free delivery by Wed, Dec 17
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JAM Paper Self Seal Catalog Envelope, 9" x 12", Blue, 100/Pack (188047509D)~#|#~4D0B8291-0669-4FF8-B52AC22780649FCC_sc7
Item: 24557917
Model: 188047509D
No reviews yet
Price is $73.39
Unit of measure 100/Pack
Free delivery by Mon, Dec 15
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Over 30
JAM Paper® Plastic Envelopes with Button and String Tie Closure, Index Booklet, 5.5 x 7.5, Pink, 12/Pack (920B1PI)~#|#~m003551775_sc7
Item: 262989
Model: 920B1PI
No reviews yet
Price is $26.19
Unit of measure 12/Pack Price per unit $2.18/Envelope
Delivery by Mon, Dec 15
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Over 30
Medical Arts Press Double Window Gummed Envelopes, 3-7/8" x 8-7/8", Security Tint, 500/Box~#|#~m002401312_sc7
Medical Arts Press Double Window Gummed Envelopes, 3-7/8" x 8-7/8", Security Tint, 500/Box is Out of stock
Item: 541592
Model: 32082
Unit of measure 500/Box
JAM Paper Tyvek Open End Clasp #13 Catalog Envelope, 10" x 13", Gold, 10/Pack (V021378B)~#|#~m003905264_sc7JAM Paper Tyvek Open End Clasp #13 Catalog Envelope, 10" x 13", Gold, 10/Pack (V021378B)~#|#~m003905263_sc7
JAM Paper Tyvek Open End Clasp #13 Catalog Envelope, 10" x 13", Gold, 10/Pack (V021378B) is Out of stock
Item: 1912870
Model: V021378B
Price is $24.79
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.