LUX 80lbs. 5 3/4" x 8 3/4" 100% Recycled Square Flap Envelopes W/Glue, Natural, 1000/BX~#|#~m000082170_sc7
Item: 384927
Model: 4895-NPC-1000
No reviews yet
Price is $165.29
Unit of measure 1000/Box
Free delivery by Mon, May 11
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JAM Paper 3.875 x 8.125 Foil Lined Invitation Envelopes, White with Red Foil, 25/Pack (32430261)~#|#~m004542971_sc7JAM Paper 3.875 x 8.125 Foil Lined Invitation Envelopes, White with Red Foil, 25/Pack (32430261)~#|#~m004542970_sc7
Item: 2329310
Model: 32430261
No reviews yet
Price is $11.19
Unit of measure 25/Pack
Delivery by Thu, May 07
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JAM Paper A10 Translucent Vellum Invitation Envelopes, 6 x 9.5, Leaf Green, 50/Pack (PACV853I)~#|#~m002169062_sc7
Item: 1588884
Model: PACV853I
No reviews yet
Price is $58.99
Unit of measure 50/Pack
Free delivery by Thu, May 07
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JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Primary Red, Bulk 250/Box (1592122H)~#|#~m002934319_sc7JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Primary Red, Bulk 250/Box (1592122H)~#|#~m002934318_sc7
Item: 1589785
Model: 1592122H
No reviews yet
Price is $283.99
Unit of measure 250/Box
Free delivery by Thu, May 07
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 500/Box, Holiday Green (67211-500)~#|#~m000081752_sc7
Item: 385627
Model: 67211-500
No reviews yet
Price is $83.39
Unit of measure 500/Box
Free delivery by Mon, May 11
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LUX 9 x 12 Open End Envelopes, 1000/Box, Black Linen (4894-BLI-1000)~#|#~m001149711_sc7
Item: 1028615
Model: 4894-BLI-1000
No reviews yet
Price is $287.99
Free delivery by Mon, May 11
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LUX 5 1/2 x 5 1/2 Square Envelopes 50/Pack, Gold Metallic (8515-07-50)~#|#~sp14807741_sc7
Item: 24260796
Model: 8515-07-50
No reviews yet
Price is $23.49
Unit of measure 50/Pack
Delivery by Mon, May 11
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JAM Paper 6.5 x 6.5 Square Invitation Envelopes, Chocolate Brown Recycled, 25/Pack (227912746)~#|#~sp4808528_sc7JAM Paper 6.5 x 6.5 Square Invitation Envelopes, Chocolate Brown Recycled, 25/Pack (227912746)~#|#~sp4808527_sc7
Item: 2632946
Model: 227912746
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX 5 1/2 x 5 1/2 Square Envelopes, 500/Box, Magenta (EX8515-10-500)~#|#~m000081487_sc7
Item: 387024
Model: EX8515-10-500
No reviews yet
Price is $153.69
Unit of measure 500/Box
Free delivery by Mon, May 11
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JAM Paper 7.5 x 7.5 Square Colored Invitation Envelopes, Red Recycled, 25/Pack (2792291)~#|#~m002934107_sc7JAM Paper 7.5 x 7.5 Square Colored Invitation Envelopes, Red Recycled, 25/Pack (2792291)~#|#~m002934106_sc7
Item: 235558
Model: 2792291
No reviews yet
Price is $26.69
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Azalea Metallic (5375-24-50)~#|#~m000081895_sc7
Item: 282587
Model: 5375-24-50
No reviews yet
Price is $20.79
Unit of measure 50/Pack
Delivery by Mon, May 11
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JAM Paper 9 x 12 Open End Catalog Foil Envelopes with Self-Adhesive Closure, Blue with White Snowflakes, 100/Pack (01323320B)~#|#~m000141500_sc7
Item: 363390
Model: 01323320B
No reviews yet
Price is $158.69
Unit of measure 100/Box
Free delivery by Thu, May 07
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Over 30
Quality Park A2 Self Seal Invitation Envelopes, 5 3/4" x 4 3/8", White, 100/Box (QUA10740)~#|#~sp43812739_sc7Quality Park A2 Self Seal Invitation Envelopes, 5 3/4" x 4 3/8", White, 100/Box (QUA10740)~#|#~sp43812738_sc7
Item: QUA10740
Model: QUA10740
Price is $64.09
Unit of measure Box
Free delivery by Tue, May 05
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Over 30
LUX 80lbs. 5 1/4" x 7 1/4" A7 Invitation Envelopes W/Peel & Press, Smoke Gray/Silver, 1000/BX~#|#~m000082081_sc7
Item: 388423
Model: FLSM4880-03-100
No reviews yet
Price is $272.19
Unit of measure 1000/Box
Free delivery by Mon, May 11
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JAM Paper A7 Metallic Invitation Envelopes, 5.25 x 7.25, Stardream Silver, Bulk 1000/Carton (GCST709B)~#|#~sp123307920_sc7JAM Paper A7 Metallic Invitation Envelopes, 5.25 x 7.25, Stardream Silver, Bulk 1000/Carton (GCST709B)~#|#~sp123307919_sc7
Item: 262065
Model: GCST709B
No reviews yet
Price is $692.09
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Gold, Bulk 250/Box (PACV617H)~#|#~m003905186_sc7JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Gold, Bulk 250/Box (PACV617H)~#|#~m003905185_sc7
Item: 1589321
Model: PACV617H
No reviews yet
Price is $189.99
Unit of measure 250/Box
Free delivery by Thu, May 07
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JAM Paper 6.5 x 6.5 Square Metallic Invitation Envelopes, Stardream Silver, 50/Pack (GCST509I)~#|#~m004672426_sc7JAM Paper 6.5 x 6.5 Square Metallic Invitation Envelopes, Stardream Silver, 50/Pack (GCST509I)~#|#~m004672425_sc7
Item: 1589240
Model: GCST509I
No reviews yet
Price is $64.99
Unit of measure 50/Pack
Free delivery by Thu, May 07
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LUX 6 1/2 x 6 1/2 Square Envelopes, 50/Box, Citrus (FE8535-20-50)~#|#~m000081565_sc7
Item: 282201
Model: FE8535-20-50
No reviews yet
Price is $14.59
Unit of measure 50/Pack
Delivery by Mon, May 11
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JAM Paper 8.5 x 8.5 Square Foil Invitation Envelopes with Zip Closure, Clear, 25/Pack (3008D8DG4906)~#|#~m004672196_sc7
Item: 1227797
Model: 3008D8DG4906
No reviews yet
Price is $49.99
Unit of measure 25/Pack
Free delivery by Thu, May 07
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JAM Paper #10 Business Foil Envelopes with Peel & Seal Closure, 4 1/8" x 9 1/2", Silver, 25/Pack (1323306)~#|#~m004671920_sc7JAM Paper #10 Business Foil Envelopes with Peel & Seal Closure, 4 1/8" x 9 1/2", Silver, 25/Pack (1323306)~#|#~m004671919_sc7
Item: 260896
Model: 1323306
No reviews yet
Price is $41.89
Unit of measure 25/Pack
Free delivery by Thu, May 07
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JAM Paper 6 x 6 Square Foil Lined Invitation Envelopes, White with Gold Foil, 50/Pack (3244689i)~#|#~sp132864644_sc7JAM Paper 6 x 6 Square Foil Lined Invitation Envelopes, White with Gold Foil, 50/Pack (3244689i)~#|#~sp132864643_sc7
Item: 24141731
Model: 3244689I
No reviews yet
Price is $33.09
Unit of measure 50/Pack
Delivery by Thu, May 07
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LUX 5 1/2 x 5 1/2 Square Envelopes, 250/Box, Natural - 100% Recycled (8515-NPC-250)~#|#~m000081490_sc7
Item: 514811
Model: 8515-NPC-250
No reviews yet
Price is $72.79
Free delivery by Mon, May 11
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JAM Paper #1 Coin Business Colored Envelopes, 2.25 x 3.5, Violet Purple Recycled, Bulk 1000/Carton (353027837C)~#|#~m003758028_sc7JAM Paper #1 Coin Business Colored Envelopes, 2.25 x 3.5, Violet Purple Recycled, Bulk 1000/Carton (353027837C)~#|#~m003750607_sc7
Item: 2103493
Model: 353027837C
No reviews yet
Price is $252.99
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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JAM Paper A7 Metallic Invitation Envelopes, 5.25 x 7.25, Stardream Malachite Deep Green, 25/Pack (GCST703)~#|#~m000068030_sc7
Item: 262009
Model: GCST703
No reviews yet
Price is $28.39
Unit of measure 25/Pack
Delivery by Thu, May 07
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LUX 7 x 7 Square Envelopes, 50/Box, Ruby Red (LUX-8545-18-50)~#|#~m003307880_sc7
Item: 1985257
Model: LUX-8545-18-50
Price is $46.89
Unit of measure 50/Box
Free delivery by Mon, May 11
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JAM Paper 6 x 6 Square Strathmore Invitation Envelopes, Natural White Wove, Bulk 1000/Carton (191278B)~#|#~m007159191_sc7JAM Paper 6 x 6 Square Strathmore Invitation Envelopes, Natural White Wove, Bulk 1000/Carton (191278B)~#|#~m007159190_sc7
Item: 262656
Model: 191278B
No reviews yet
Price is $564.99
Unit of measure 1000/Carton
Free delivery by Thu, May 07
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LUX 70lbs. 4 1/8" x 9 1/2" #10 Open End Envelopes, Avocado Green, 500/BX~#|#~m000081265_sc7
Item: 386994
Model: EX7716-27-500
No reviews yet
Price is $201.99
Unit of measure 500/Box
Free delivery by Mon, May 11
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, Mandarin (EX4880-11-500)~#|#~m005902327_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, Mandarin (EX4880-11-500)~#|#~m000082046_sc7
Item: 514281
Model: EX4880-11-500
No reviews yet
Price is $186.19
Free delivery by Mon, May 11
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LUX Square Envelopes, 8-1/2" x 8-1/2", Ruby Red, 50 Sheets (LUX-8575-18-50)~#|#~m003307877_sc7
Item: 1985309
Model: LUX-8575-18-50
No reviews yet
Price is $30.89
Unit of measure 50/Box
Delivery by Mon, May 11
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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 $71.89
Unit of measure 250/Box
Free delivery by Mon, May 11
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LUX Moistenable Glue Envelope 3 1/8" x 6 1/4", Electric Orange, 50/Pack (WS-7611-50)~#|#~C0DD9361-90DC-4FA4-A730C81F3BC1CB1E_sc7LUX Moistenable Glue Envelope 3 1/8" x 6 1/4", Electric Orange, 50/Pack (WS-7611-50)~#|#~D3890C5D-3ABC-4A2C-886B3441FB59D59B_sc7
Item: 23996706
Model: WS-7611-50
No reviews yet
Price is $16.19
Unit of measure 50/Pack
Delivery by Mon, May 11
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Over 30
JAM Paper 5 x 6.125 Booklet Foil Envelopes with Self-Adhesive Closure, Red Holly, 100/Pack (21326676B)~#|#~m000067466_sc7
Item: 260932
Model: 21326676B
No reviews yet
Price is $108.99
Unit of measure 100/Box
Free delivery by Thu, May 07
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Over 30
LUX #1 Coin Envelopes (2-1/4 x 3-1/2) 1000/Pack, 80lb. Bright White (1CO-80W-1000)~#|#~sp14807624_sc7
Item: 24261276
Model: 1CO-80W-1000
No reviews yet
Price is $132.59
Unit of measure 1000/Pack
Free delivery by Mon, May 11
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LUX 80lb 5 3/4"x8 3/4" A9 Invitation Envelopes W/Peel&Press, Seafoam Blue, 500/BX~#|#~m000082179_sc7
Item: 516857
Model: LUX-4895-113500
No reviews yet
Price is $163.29
Free delivery by Mon, May 11
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Over 30
LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 250/Pack, Blonde Metallic (4872-M07-250)~#|#~sp14807620_sc7
Item: 24260656
Model: 4872-M07-250
No reviews yet
Price is $64.89
Unit of measure 250/Pack
Free delivery by Mon, May 11
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Over 30
JAM Paper 6 x 6 Square Metallic Invitation Envelopes, Stardream Opal, 50/Pack (GCST500I)~#|#~m002168940_sc7
Item: 1589236
Model: GCST500I
No reviews yet
Price is $64.99
Unit of measure 50/Pack
Free delivery by Thu, May 07
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Over 30
JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, 50/Pack (PACV504I)~#|#~m006948420_sc7JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, 50/Pack (PACV504I)~#|#~m006948419_sc7
Item: 1588459
Model: PACV504I
No reviews yet
Price is $58.99
Unit of measure 50/Pack
Free delivery by Thu, May 07
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Fairway Metallic (5380-25-250)~#|#~m005902316_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Fairway Metallic (5380-25-250)~#|#~m000082022_sc7
Item: 515480
Model: 5380-25-250
No reviews yet
Price is $123.39
Free delivery by Mon, May 11
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Over 30
Quality Park Self Seal Catalog Envelopes, 10"L x 13"H, Brown, 25/Pack (QUA93336)~#|#~sp43815465_sc7Quality Park Self Seal Catalog Envelopes, 10"L x 13"H, Brown, 25/Pack (QUA93336)~#|#~sp43815464_sc7
Item: QUA93336
Model: QUA93336
Price is $187.59
Unit of measure Pack
Free delivery by Mon, May 04
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JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Gold, 25/Pack (PACV617)~#|#~m003905186_sc7JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Gold, 25/Pack (PACV617)~#|#~m003905185_sc7
Item: 262249
Model: PACV617
No reviews yet
Price is $21.99
Unit of measure 25/Pack
Delivery by Thu, May 07
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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.