JAM Paper A2 Strathmore Invitation Envelopes, 4.375 x 5.75, Natural White Linen, 25/Pack (99761)~#|#~m007159157_sc7JAM Paper A2 Strathmore Invitation Envelopes, 4.375 x 5.75, Natural White Linen, 25/Pack (99761)~#|#~m007159156_sc7
Item: 263987
Model: 99761
No reviews yet
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, May 04
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Pack, 60lb. White w/Peel & Press (4872-WPP-50)~#|#~sp14807639_sc7
Item: 24260946
Model: 4872-WPP-50
No reviews yet
Price is $19.29
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Limelight Green, 250/BX~#|#~m004940491_sc7LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Limelight Green, 250/BX~#|#~m005824012_sc7
Item: 388477
Model: LUX-4860-101-25
No reviews yet
Price is $96.19
Unit of measure 250/Box
Free delivery by Wed, May 06
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LUX 8 3/4 x 11 1/2 Booklet Window Envelopes 50/Pack, 28lb. White (811BW-28W-50)~#|#~FADB0EBA-9875-4051-B61BAAB8577D2D58_sc7LUX 8 3/4 x 11 1/2 Booklet Window Envelopes 50/Pack, 28lb. White (811BW-28W-50)~#|#~0FEA5490-2D82-458C-908F673B3EBBDF0A_sc7
Item: 24148612
Model: 811BW-28W-50
No reviews yet
Price is $47.19
Unit of measure 50/Pack
Free delivery by Wed, May 06
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Quality Park Clasp & Moistenable Glue Kraft Catalog Envelope, 12" x 15 1/2", Kraft, 100/Box (37810)~#|#~s0288241_sc7
Quality Park Clasp & Moistenable Glue Kraft Catalog Envelope, 12" x 15 1/2", Kraft, 100/Box (37810) is Backorder
Item: 510664
Model: QUA37810
Price is $90.09
Unit of measure 100/Box Price per unit $0.90/Envelope
Free delivery by Wed, Jun 10
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Quality Park Tyvek Open End Envelope, 12" x 16" x 2", White, 100/Carton (QUAR4290)~#|#~s0171536_sc7
Item: 827951
Model: QUAR4290
Price is $396.09
Unit of measure 100/Carton
Free delivery by Mon, May 04
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JAM Paper A7 Parchment Invitation Envelopes, 5.25 x 7.25, Natural Recycled, 25/Pack (35394)~#|#~sp136742284_sc7JAM Paper A7 Parchment Invitation Envelopes, 5.25 x 7.25, Natural Recycled, 25/Pack (35394)~#|#~sp136742279_sc7
Item: 263958
Model: 35394
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, May 04
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JAM Paper 9.5 x 12.625 Booklet Commercial Envelopes, White, 100/Pack (953454B)~#|#~m003904734_sc7JAM Paper 9.5 x 12.625 Booklet Commercial Envelopes, White, 100/Pack (953454B)~#|#~m003904508_sc7
Item: 263761
Model: 953454B
No reviews yet
Price is $43.09
Unit of measure 100/Box
Free delivery by Mon, May 04
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JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, Black Linen with Silver Foil, 25/Pack (3243688)~#|#~m002934337_sc7JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, Black Linen with Silver Foil, 25/Pack (3243688)~#|#~sp137085792_sc7
Item: 262743
Model: 3243688
Price is $18.99
Unit of measure 25/Pack
Delivery by Mon, May 04
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JAM Paper Self Seal #5 1/2 Coin Business Envelopes, 3 1/8" x 5 1/2", Brown Kraft Manila, 100/Pack (400238462D)~#|#~2A1BC6D9-6888-49C8-AF549089889D8F44_sc7
Item: 24557958
Model: 400238462D
Price is $17.09
Unit of measure 100/Pack
Delivery by Mon, May 04
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Seafoam (LUX-4872-113-50)~#|#~m000081873_sc7
Item: 282562
Model: LUX-4872-113-50
No reviews yet
Price is $13.69
Unit of measure 50/Pack
Delivery by Wed, May 06
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Over 30
LUX 5 3/4" x 8 3/4" 80lbs. A9 Invitation Envelopes W/Peel & Press, Aquamarine, 50/Pack~#|#~m000081684_sc7
Item: 282902
Model: 5395-02-50
No reviews yet
Price is $31.19
Unit of measure 50/Pack
Delivery by Wed, May 06
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Over 30
JAM Paper A6 Invitation Envelopes, 4.75 x 6.5, Baby Blue, 50/Pack (155626I)~#|#~m003904708_sc7JAM Paper A6 Invitation Envelopes, 4.75 x 6.5, Baby Blue, 50/Pack (155626I)~#|#~m003904707_sc7
Item: 1588921
Model: 155626I
No reviews yet
Price is $23.29
Unit of measure 50/Pack
Delivery by Mon, May 04
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Over 30
JAM PAPER Commercial Open End Catalog Envelopes, 6 1/2" x 9 1/2", White, 25/Pack (1623193)~#|#~sp105663282_sc7JAM PAPER Commercial Open End Catalog Envelopes, 6 1/2" x 9 1/2", White, 25/Pack (1623193)~#|#~sp105663280_sc7
Item: 366674
Model: 1623193
Price is $9.59
Unit of measure 25/Pack
Delivery by Mon, May 04
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LUX 5 3/4" x 8 3/4" 70lbs. A9 Invitation Envelopes W/Glue, Avocado Green, 50/Pack~#|#~m000082147_sc7
Item: 282903
Model: EX4895-27-50
No reviews yet
Price is $20.39
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Baby Blue (EX4875-13-50)~#|#~m000081896_sc7
Item: 282588
Model: EX4875-13-50
No reviews yet
Price is $14.29
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Pack, Natural Linen (4875-NLI-50)~#|#~sp14807729_sc7
Item: 24260813
Model: 4875-NLI-50
No reviews yet
Price is $17.59
Unit of measure 50/Pack
Delivery by Wed, May 06
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Over 30
LUX Self Seal #5 1/2 Coin Envelopes, 3 1/8" x 5 1/2", White, 50/Pack (512CO-28W-50)~#|#~48206F59-BFB5-4427-935A352B2F5791AC_sc7LUX Self Seal #5 1/2 Coin Envelopes, 3 1/8" x 5 1/2", White, 50/Pack (512CO-28W-50)~#|#~1DDF1FB2-0E3D-4E16-BCCBA7A7FCD85390_sc7
Item: 2146323
Model: 512CO-28W-50
No reviews yet
Price is $30.29
Unit of measure 50/Pack
Delivery by Wed, May 06
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Over 30
LUX 5 3/4" x 8 3/4" 80lbs. A9 Invitation Envelopes W/Peel & Press, Vintage Plum Purple, 50/Pack~#|#~m000082186_sc7
Item: 282952
Model: LUX-4895-104-50
No reviews yet
Price is $16.19
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper #6 Coin Business Envelopes, 3.375 x 6, White, Bulk 1000/Carton (01623184B)~#|#~sp137086855_sc7JAM Paper #6 Coin Business Envelopes, 3.375 x 6, White, Bulk 1000/Carton (01623184B)~#|#~sp137086233_sc7
Item: 362634
Model: 01623184B
No reviews yet
Price is $155.89
Unit of measure 1000/Carton
Free delivery by Mon, May 04
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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, May 04
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JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Red Recycled, 50/Pack (355228282I)~#|#~m002934588_sc7JAM Paper #7 Coin Business Colored Envelopes, 3.5 x 6.5, Red Recycled, 50/Pack (355228282I)~#|#~m002934587_sc7
Item: 2329345
Model: 355228282I
Price is $22.69
Unit of measure 50/Pack
Delivery by Mon, May 04
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JAM Paper® Plastic Envelopes with Hook & Loop Closure, Index Booklet, 5.5 x 7.5, Clear, 12/Pack (920V0CL)~#|#~m005223799_sc7JAM Paper® Plastic Envelopes with Hook & Loop Closure, Index Booklet, 5.5 x 7.5, Clear, 12/Pack (920V0CL)~#|#~m005223798_sc7
Item: 263522
Model: 920V0CL
Price is $41.19
Unit of measure 12/Pack Price per unit $3.43/Envelope
Free delivery by Mon, May 04
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JAM Paper 9 x 12 Booklet Envelopes, Baby Pink, 25/Pack (31512738)~#|#~m000068863_sc7
Item: 263703
Model: 31512738
No reviews yet
Price is $26.09
Unit of measure 25/Pack
Delivery by Mon, May 04
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Over 30
LUX 9" x 12" Open End Clasp Envelopes, Midnight Black, 100/Pack~#|#~m000081654_sc7
Item: 282310
Model: 73854-100
No reviews yet
Price is $85.09
Unit of measure 100/Pack
Free delivery by Wed, May 06
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JAM Paper A7 Strathmore Invitation Envelopes, 5.25 x 7.25, Natural White Wove, 50/Pack (44507I)~#|#~sp132864319_sc7JAM Paper A7 Strathmore Invitation Envelopes, 5.25 x 7.25, Natural White Wove, 50/Pack (44507I)~#|#~sp132864318_sc7
Item: 1589601
Model: 44507I
Price is $20.49
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX A7 Foil Lined Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Navy w/Gold LUX Lining (FLNV4880-04-50)~#|#~m000082057_sc7
Item: 282799
Model: FLNV4880-04-50
Price is $41.99
Unit of measure 50/Pack
Free delivery by Wed, May 06
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Over 30
JAM Paper Tear-Proof Tyvek Open End Catalog Envelopes, 9" x 12", White Airmail, 25/Pack (2131102)~#|#~m004542919_sc7JAM Paper Tear-Proof Tyvek Open End Catalog Envelopes, 9" x 12", White Airmail, 25/Pack (2131102)~#|#~m004542918_sc7
Item: 2329407
Model: 2131102
Price is $28.29
Unit of measure 25/Pack
Delivery by Mon, May 04
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Over 30
Quality Park Unsealed Booklet Envelope, 9 1/2" x 11 7/8", Beige, 100/Box (QUA89604)~#|#~s0055705_sc7Quality Park Unsealed Booklet Envelope, 9 1/2" x 11 7/8", Beige, 100/Box (QUA89604)~#|#~s0066917_sc7
Item: 508477
Model: QUA89604
No reviews yet
Price is $138.69
Unit of measure 100/Box
Free delivery by Tue, Apr 28
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Over 30
LUX 9 x 12 Kraft Open End Window Envelopes 50/Pack, 28lb. Brown Kraft (1590BK-50)~#|#~F894C9A5-24D4-4AA8-ABC61959107014A8_sc7
Item: 24260328
Model: 1590BK-50
No reviews yet
Price is $52.99
Unit of measure 50/Pack
Free delivery by Wed, May 06
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JAM Paper A6 Invitation Envelope 4 3/4" x 6 1/2", Presidential Blue, 25/Pack (563916906)~#|#~680C27C9-F04B-4C58-8F7DBBE11E110D00_sc7JAM Paper A6 Invitation Envelope 4 3/4" x 6 1/2", Presidential Blue, 25/Pack (563916906)~#|#~3A786636-C9A0-4FD4-8FC2E9CB4B60A0BF_sc7
Item: 261129
Model: 563916906
Price is $15.89
Unit of measure 25/Pack
Delivery by Mon, May 04
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Over 30
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 $39.89
Unit of measure 50/Pack
Free delivery by Wed, May 06
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Over 30
JAM Paper 6" x 9" Open End Catalog Colored Envelopes, Orange Recycled, 10/Pack (88129B)~#|#~m003904668_sc7JAM Paper 6" x 9" Open End Catalog Colored Envelopes, Orange Recycled, 10/Pack (88129B)~#|#~m003904667_sc7
Item: 38342
Model: 88129B
No reviews yet
Price is $14.09
Unit of measure 10/Pack
Delivery by Mon, May 04
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Over 30
LUX 6 1/2 x 9 1/2 Booklet Envelopes 50/Pack, 24lb. Bright White (12229-50)~#|#~sp14807384_sc7
Item: 24261365
Model: 12229-50
Price is $18.09
Unit of measure 50/Pack
Delivery by Wed, May 06
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Over 30
JAM Paper 9.5 x 12.625 Booklet Translucent Vellum Envelopes, Clear, 25/Pack (2851377)~#|#~m006965541_sc7JAM Paper 9.5 x 12.625 Booklet Translucent Vellum Envelopes, Clear, 25/Pack (2851377)~#|#~m006965540_sc7
Item: 262137
Model: 2851377
No reviews yet
Price is $33.99
Unit of measure 25/Pack
Delivery by Mon, May 04
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Over 30
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, May 04
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Over 30
JAM Paper Booklet Envelope, 6" x 9", White, 1000/Carton (04238B)~#|#~39093D30-8F6E-40D6-90A5DA75D1967EA9_sc7JAM Paper Booklet Envelope, 6" x 9", White, 1000/Carton (04238B)~#|#~sp137086234_sc7
Item: 366303
Model: 04238B
No reviews yet
Price is $206.59
Unit of measure 1000/Carton
Free delivery by Mon, May 04
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JAM Paper 9 x 12 Booklet Envelopes, Navy Blue, 100/Pack (263916011c)~#|#~sp121512574_sc7JAM Paper 9 x 12 Booklet Envelopes, Navy Blue, 100/Pack (263916011c)~#|#~sp121512573_sc7
Item: 2478161
Model: 263916011C
No reviews yet
Price is $76.89
Unit of measure 100/Pack
Free delivery by Mon, May 04
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JAM Paper Square Envelopes, Peel & Press, 6 1/4 x 6 1/4, 70lb, Avocado Green, 50 Pack (8530-102-50)~#|#~sp228873506_sc7
JAM Paper Square Envelopes, Peel & Press, 6 1/4 x 6 1/4, 70lb, Avocado Green, 50 Pack (8530-102-50) is Out of stock
Item: 24578451
Model: 8530-102-50
No reviews yet
Price is $17.99
Unit of measure 50/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.