Sponsored Products
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JAM Paper #6 Coin Business Envelopes, 3.375 x 6, White, 25/Pack (1623184)~#|#~sp115352133_sc7JAM Paper #6 Coin Business Envelopes, 3.375 x 6, White, 25/Pack (1623184)~#|#~sp115352132_sc7
Item: 362543
Model: 1623184
Price is $6.99
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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LUX #6 3/4 Window Envelopes (3 5/8 x 6 1/2) 50/Pack, 24lb. Bright White w/ Sec. Tint (634W-W-50)~#|#~sp5822112_sc7LUX #6 3/4 Window Envelopes (3 5/8 x 6 1/2) 50/Pack, 24lb. Bright White w/ Sec. Tint (634W-W-50)~#|#~sp5875296_sc7
Item: 23995915
Model: 634W-W-50
Price is $26.19
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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LUX #10 Full Face Window Envelopes (4 1/8 x 9 1/2) 500/Pack, 80lb. White (FFW-10-80W-500)~#|#~sp12274947_sc7LUX #10 Full Face Window Envelopes (4 1/8 x 9 1/2) 500/Pack, 80lb. White (FFW-10-80W-500)~#|#~sp12275015_sc7
Item: 24161925
Model: FFW-10-80W-500
No reviews yet
Price is $215.09
Unit of measure 500/Pack
Free delivery by Wed, Dec 17
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JAM Paper A2 Strathmore Invitation Envelopes, 4.375 x 5.75, Bright White Wove, 50/Pack (191151I)~#|#~sp112110294_sc7JAM Paper A2 Strathmore Invitation Envelopes, 4.375 x 5.75, Bright White Wove, 50/Pack (191151I)~#|#~sp112110293_sc7
Item: 1588952
Model: 191151I
No reviews yet
Price is $20.49
Unit of measure 50/Pack
Delivery by Mon, Dec 15
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Mandarin (EX4875-11-50)~#|#~m000081929_sc7
Item: 282631
Model: EX4875-11-50
No reviews yet
Price is $18.39
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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JAM Paper A7 Invitation Envelopes, 5.25 x 7.25, Navy Blue, 25/Pack (LEBA717)~#|#~sp115351999_sc7JAM Paper A7 Invitation Envelopes, 5.25 x 7.25, Navy Blue, 25/Pack (LEBA717)~#|#~sp115351997_sc7
Item: 261700
Model: LEBA717
Price is $17.09
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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LUX A7 Foil Lined Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, White w/Red LUX Lining (FLWH4880-01-50)~#|#~m000082099_sc7
Item: 282846
Model: FLWH4880-01-50
No reviews yet
Price is $34.09
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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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 Wed, Dec 17
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LUX A2 Envelope - 24lb. White) 50/Box, Machine Insertable 50/Box~#|#~m004064012_sc7
Item: 2146369
Model: 80132-MI-50
No reviews yet
Price is $25.89
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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JAM Paper 7 x 10 Booklet Commercial Envelopes, White, 25/Pack (5528)~#|#~sp111772352_sc7JAM Paper 7 x 10 Booklet Commercial Envelopes, White, 25/Pack (5528)~#|#~sp111772351_sc7
Item: 366115
Model: 5528
Price is $9.59
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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JAM Paper A2 Colored Invitation Envelopes, 4.375 x 5.75, Green Recycled, 50/Pack (15843I)~#|#~sp121512328_sc7JAM Paper A2 Colored Invitation Envelopes, 4.375 x 5.75, Green Recycled, 50/Pack (15843I)~#|#~sp121512327_sc7
Item: 1589476
Model: 15843I
Price is $20.49
Unit of measure 50/Pack
Delivery by Mon, Dec 15
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LUX Open End Envelope 6" x 11.5", Bright White~#|#~m001406660_sc7
Item: 1277751
Model: 61112-70W-50
Price is $76.89
Unit of measure 50/Pack
Free delivery by Wed, Dec 17
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JAM Paper Kraft A9 Invitation Envelopes, 5.75 x 8.75, Brown Kraft Paper Bag, 25/Pack (LEKR875)~#|#~sp121511773_sc7JAM Paper Kraft A9 Invitation Envelopes, 5.75 x 8.75, Brown Kraft Paper Bag, 25/Pack (LEKR875)~#|#~sp121511711_sc7
Item: 261531
Model: LEKR875
Price is $20.49
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Aquamarine Metallic (5380-02-50)~#|#~m005902306_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Aquamarine Metallic (5380-02-50)~#|#~m005823934_sc7
Item: 282728
Model: 5380-02-50
No reviews yet
Price is $30.79
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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LUX 9 x 12 Open End Envelopes 50/Pack, Midnight Black (80428-50)~#|#~sp14807538_sc7
Item: 24261232
Model: 80428-50
No reviews yet
Price is $39.29
Unit of measure 50/Pack
Free delivery by Wed, Dec 17
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Quality Park Survivor Tyvek Expansion Flap-Stik Catalog Envelopes, 12" x 16", 50/Carton (QUAR4497)~#|#~sp44490038_sc7Quality Park Survivor Tyvek Expansion Flap-Stik Catalog Envelopes, 12" x 16", 50/Carton (QUAR4497)~#|#~sp44490037_sc7
Item: 827877
Model: QUAR4497
Price is $300.89
Unit of measure 50/Carton
Free delivery by Wed, Dec 10
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JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, Black Linen with Silver Foil, 50/Pack (3243688I)~#|#~m002934260_sc7JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, Black Linen with Silver Foil, 50/Pack (3243688I)~#|#~m002934253_sc7
Item: 1589218
Model: 3243688I
No reviews yet
Price is $39.09
Unit of measure 50/Pack
Free delivery by Mon, Dec 15
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JAM Paper A7 Invitation Envelopes, 5.25 x 7.25, Navy Blue, 50/Pack (LEBA717I)~#|#~sp115351999_sc7JAM Paper A7 Invitation Envelopes, 5.25 x 7.25, Navy Blue, 50/Pack (LEBA717I)~#|#~sp115351997_sc7
Item: 1589235
Model: LEBA717I
Price is $27.19
Unit of measure 50/Pack
Delivery by Mon, Dec 15
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JAM Paper #12 Policy Business Envelopes, 4.75 x 11, White, 25/Pack (1623188)~#|#~sp116347490_sc7JAM Paper #12 Policy Business Envelopes, 4.75 x 11, White, 25/Pack (1623188)~#|#~sp116347483_sc7
Item: 366593
Model: 1623188
Price is $13.59
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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LUX 60lb 4 3/8"x8 1/4" Square Flap Photo Greeting Envelopes, White W/Black LUX, 250/BX~#|#~m000082204_sc7
Item: 513752
Model: FLWHPHGC-02-250
No reviews yet
Price is $76.89
Free delivery by Wed, Dec 17
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JAM Paper A8 Strathmore Invitation Envelopes, 5.5 x 8.125, Bright White Linen, 25/Pack (40934)~#|#~m007159129_sc7JAM Paper A8 Strathmore Invitation Envelopes, 5.5 x 8.125, Bright White Linen, 25/Pack (40934)~#|#~m007159128_sc7
Item: 262490
Model: 40934
Price is $13.49
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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LUX 5 3/4" x 8 3/4" 60lbs. Square Flap Envelopes W/Peel & Press, White/Red LUX Lining~#|#~m000082191_sc7
Item: 282957
Model: FLWH4895-01-50
No reviews yet
Price is $34.79
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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LUX 9" x 12" Open End Envelopes 50/Pack, Holiday Red (FE-7280-15-50)~#|#~1545E97C-9626-4699-B4BD104AFB483B6F_sc7
Item: 24261137
Model: FE-7280-15-50
No reviews yet
Price is $36.79
Unit of measure 50/Pack
Free delivery by Wed, Dec 17
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LUX A10 Envelope - 24lb. White, Machine Insertable 50/Pack, 24lb. White (A10-24WMI-50)~#|#~sp12274947_sc7LUX A10 Envelope - 24lb. White, Machine Insertable 50/Pack, 24lb. White (A10-24WMI-50)~#|#~sp12275039_sc7
Item: 24161885
Model: A10-24WMI-50
No reviews yet
Price is $15.19
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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LUX 60lbs. 5 3/4" x 8 3/4" A9 Invitation Envelopes W/Peel & Press, White/Red LUX, 250/BX~#|#~m000082191_sc7
Item: 387929
Model: FLWH4895-01-250
No reviews yet
Price is $104.91
Unit of measure 250/Box
Free delivery by Wed, Dec 17
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LUX 70lbs. 4 1/8" x 9 1/2" #10 Open End Envelopes W/Glue, Garnet Red, 250/BX~#|#~m000081272_sc7
Item: 386983
Model: EX7716-26-250
No reviews yet
Price is $114.44
Unit of measure 250/Box
Free delivery by Wed, Dec 17
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, Natural - 100% Recycled (4865-NPC-500)~#|#~m000081723_sc7
Item: 515397
Model: 4865-NPC-500
No reviews yet
Price is $76.59
Free delivery by Wed, Dec 17
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 500/Box, 70lb. Bright White (20743-500)~#|#~m000082124_sc7
Item: 515434
Model: 20743-500
Price is $110.99
Free delivery by Wed, Dec 17
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Azalea Metallic (5370-24-50)~#|#~m000081766_sc7
Item: 282432
Model: 5370-24-50
No reviews yet
Price is $18.59
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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JAM Paper 7.5 x 7.5 Square Invitation Envelopes, White, 25/Pack (28210)~#|#~sp126919092_sc7JAM Paper 7.5 x 7.5 Square Invitation Envelopes, White, 25/Pack (28210)~#|#~sp126919091_sc7
Item: 261305
Model: 28210
Price is $25.89
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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JAM Paper A8 Colored Invitation Envelopes, 5.5 x 8.125, Green Recycled, 25/Pack (95625)~#|#~m003904687_sc7JAM Paper A8 Colored Invitation Envelopes, 5.5 x 8.125, Green Recycled, 25/Pack (95625)~#|#~m003904688_sc7
Item: 261272
Model: 95625
No reviews yet
Price is $13.19
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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LUX, 6 x 11 1/2 Open End Envelopes, Bright White~#|#~m001406660_sc7
Item: 1277789
Model: 61112-70W-500
No reviews yet
Price is $294.39
Unit of measure 500/Box
Free delivery by Wed, Dec 17
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Pack, Gray - 100% Cotton (4880-SG-50)~#|#~sp14807898_sc7
Item: 24261155
Model: 4880-SG-50
No reviews yet
Price is $27.79
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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JAM Paper A8 Colored Invitation Envelopes, 5.5 x 8.125, Red Recycled, 25/Pack (27799)~#|#~m002934129_sc7JAM Paper A8 Colored Invitation Envelopes, 5.5 x 8.125, Red Recycled, 25/Pack (27799)~#|#~m002934128_sc7
Item: 263859
Model: 27799
Price is $13.89
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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JAM PAPER Premium Invitation Envelopes, 6 1/2" x 6 1/2", Olive Green, 25/Pack (187021)~#|#~sp95009113_sc7JAM PAPER Premium Invitation Envelopes, 6 1/2" x 6 1/2", Olive Green, 25/Pack (187021)~#|#~sp95008959_sc7
Item: 263969
Model: 187021
No reviews yet
Price is $33.59
Unit of measure 25/Pack
Delivery by Mon, Dec 15
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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 A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Pack, 80lb. White (4872-80W-50)~#|#~sp12274947_sc7LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Pack, 80lb. White (4872-80W-50)~#|#~sp12275067_sc7
LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Pack, 80lb. White (4872-80W-50) is Out of stock
Item: 24161656
Model: 4872-80W-50
Price is $24.39
Unit of measure 50/Pack
Quality Park Booklet Envelope 6" x 9", White, 500/Box (QUA37181)~#|#~s0511674_sc7
Quality Park Booklet Envelope 6" x 9", White, 500/Box (QUA37181) is Out of stock
Item: 901454
Model: QUA37181
No reviews yet
Price is $151.19
Unit of measure 500/Box
Quality Park Clasp Kraft Catalog Envelope, 10" x 13", Kraft, 250/Box (37597)~#|#~s0293058_sc7Quality Park Clasp Kraft Catalog Envelope, 10" x 13", Kraft, 250/Box (37597)~#|#~s0171250_sc7
Quality Park Clasp Kraft Catalog Envelope, 10" x 13", Kraft, 250/Box (37597) is Out of stock
Item: 813389
Model: QUA37597
Price is $84.69
Unit of measure 250/Box
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.