Square Envelopes

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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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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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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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 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 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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Staples Tyvek EasyClose Catalog Envelopes, 13" x 10", White, 100/Box (ST19860-CC)~#|#~sp37069921_sc7Staples Tyvek EasyClose Catalog Envelopes, 13" x 10", White, 100/Box (ST19860-CC)~#|#~sp37069918_sc7
Item: 534610
Model: ST19860-CC
Price is $294.19
Unit of measure 100/Box
Free delivery by Tue, Apr 28
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Quality Park Kraft Self Seal Document Envelopes, 9 3/4" x 12 1/2", White, 25/Box (64015)~#|#~sp44852729_sc7Quality Park Kraft Self Seal Document Envelopes, 9 3/4" x 12 1/2", White, 25/Box (64015)~#|#~sp44852727_sc7
Item: 2598542
Model: QUA64015
Price is $54.99
Unit of measure 25/Box
Free delivery by Tue, Apr 28
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LUX 9 x 12 Booklet Envelopes 50/Pack, Wisteria (LUX-4899-106-50)~#|#~sp14807512_sc7
Item: 24260230
Model: LUX-4899-106-50
No reviews yet
Price is $24.69
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 50/Pack, Natural Linen (LUX-4885-NLI-50)~#|#~sp12274947_sc7LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 50/Pack, Natural Linen (LUX-4885-NLI-50)~#|#~sp12275071_sc7
Item: 24161783
Model: LUX-4885-NLI-50
No reviews yet
Price is $15.99
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) 100% Cotton 50/Pack, Natural White - 100% Cotton (4875-SN-50)~#|#~sp14807769_sc7
Item: 24260467
Model: 4875-SN-50
No reviews yet
Price is $24.79
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Rose Quartz Metallic (5370-04-50)~#|#~m000081732_sc7
Item: 282500
Model: 5370-04-50
No reviews yet
Price is $16.19
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Baby Blue, 50/Pack (2155778I)~#|#~sp121511965_sc7JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Baby Blue, 50/Pack (2155778I)~#|#~sp121511964_sc7
Item: 1588693
Model: 2155778I
Price is $20.49
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX 10 x 10 Square Envelopes, 50/Box, 28lb. White (WS-5221-50)~#|#~m004063850_sc7
Item: 2146654
Model: WS-5221-50
No reviews yet
Price is $32.19
Unit of measure 50/Pack
Delivery by Wed, May 06
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Quality Park Self Seal Kraft Catalog Envelope, 9" x 12", Brown, 100/Box (QUA43563)~#|#~m002277550_sc7
Item: 2708508
Model: QUA43563
Price is $48.19
Unit of measure 100/Box
Free delivery by Tue, Apr 28
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LUX Self Seal #10 Window Envelope, 4 1/2" x 9 1/2", White Wove, 500/Pack (10APW-WW-500)~#|#~sp5822112_sc7LUX Self Seal #10 Window Envelope, 4 1/2" x 9 1/2", White Wove, 500/Pack (10APW-WW-500)~#|#~sp5875295_sc7
Item: 23996358
Model: 10APW-WW-500
No reviews yet
Price is $196.99
Unit of measure 500/Pack
Free delivery by Wed, May 06
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LUX 28lbs. 11" x 17" Kraft Open End Flap Jumbo Envelopes, Brown Kraft, 500/BX~#|#~m000081444_sc7
Item: 385694
Model: 83478-500
No reviews yet
Price is $273.99
Unit of measure 500/Box
Free delivery by Wed, May 06
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JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Yellow Recycled, 25/Pack (356730537)~#|#~m003757860_sc7JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Yellow Recycled, 25/Pack (356730537)~#|#~m003562845_sc7
Item: 2103487
Model: 356730537
No reviews yet
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, May 04
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LUX 4 1/8" x 9 1/2" #10 70lbs. Open End Envelopes; Candy Pink, 50/Pack~#|#~m000081270_sc7
Item: 281881
Model: EX7716-14-50
No reviews yet
Price is $23.89
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", White, 25/Pack (49856)~#|#~sp115352044_sc7JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", White, 25/Pack (49856)~#|#~sp115352043_sc7
Item: 366523
Model: 49856
No reviews yet
Price is $9.59
Unit of measure 25/Pack
Delivery by Mon, May 04
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JAM Paper A6 Invitation Envelope, 4 3/4" x 6 1/2", White, 100/Pack (31820C)~#|#~m003904578_sc7JAM Paper A6 Invitation Envelope, 4 3/4" x 6 1/2", White, 100/Pack (31820C)~#|#~m003904577_sc7
Item: 2103325
Model: 31820C
Price is $26.19
Unit of measure 100/Pack
Delivery by Mon, May 04
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, Magenta (EX4880-10-500)~#|#~m005902326_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, Magenta (EX4880-10-500)~#|#~m001371870_sc7
Item: 514288
Model: EX4880-10-500
No reviews yet
Price is $127.49
Free delivery by Wed, May 06
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JAM Paper 6" x 9" Open End Catalog Envelopes, Baby Blue, 10/Pack (1285578B)~#|#~m003904741_sc7JAM Paper 6" x 9" Open End Catalog Envelopes, Baby Blue, 10/Pack (1285578B)~#|#~m003904740_sc7
Item: 38299
Model: 1285578B
No reviews yet
Price is $12.59
Unit of measure 10/Pack
Delivery by Mon, May 04
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JAM Paper 7.5 x 10.5 Open End Catalog Envelopes, White, 25/Pack (4120)~#|#~sp111772311_sc7JAM Paper 7.5 x 10.5 Open End Catalog Envelopes, White, 25/Pack (4120)~#|#~sp111772310_sc7
Item: 366685
Model: 4120
Price is $9.59
Unit of measure 25/Pack
Delivery by Mon, May 04
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Quality Park Clasp & Moistenable Glue Kraft Catalog Envelopes, 4" x 6.38", Brown Kraft, 100/Box (QUA37815)~#|#~sp42116464_sc7Quality Park Clasp & Moistenable Glue Kraft Catalog Envelopes, 4" x 6.38", Brown Kraft, 100/Box (QUA37815)~#|#~sp42116463_sc7
Item: 513229
Model: QUA37815
Price is $65.29
Unit of measure 100/Box
Free delivery by Tue, Apr 28
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JAM Paper A7 Invitation Envelopes, 5.25 x 7.25, Baby Pink, 50/Pack (155627I)~#|#~sp137085709_sc7
Item: 1589166
Model: 155627I
Price is $24.49
Unit of measure 50/Pack
Delivery by Mon, May 04
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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, May 04
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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, May 04
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LUX 5 1/2" x 8 1/8" 60lbs. Square Flap Envelopes W/Glue, Holiday Red, 50/pack~#|#~m000082128_sc7
Item: 282881
Model: 67146-50
No reviews yet
Price is $11.09
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Pack, Champagne Metallic (5365-M08-50)~#|#~sp14807905_sc7
Item: 24261149
Model: 5365-M08-50
Price is $14.69
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Amethyst Metallic (5365-17-50)~#|#~m000081682_sc7
Item: 282343
Model: 5365-17-50
No reviews yet
Price is $16.09
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper A8 Strathmore Invitation Envelopes, 5.5 x 8.125, Natural White Wove, 50/Pack (191205I)~#|#~m007159177_sc7JAM Paper A8 Strathmore Invitation Envelopes, 5.5 x 8.125, Natural White Wove, 50/Pack (191205I)~#|#~m007159176_sc7
Item: 1589179
Model: 191205I
Price is $18.49
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX 5 3/4" x 8 3/4" 70lbs. A9 Invitation Envelopes W/Peel & Press, Ruby Red, 50/Pack~#|#~m000082178_sc7
Item: 282943
Model: EX4895-18-50
No reviews yet
Price is $18.09
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX 6" x 9" Kraft Open End Envelopes, 250/Box, 80lb. White (1644-32IJ-250)~#|#~658FDA5E-4EBC-4E26-B67084E83D864E2B_sc7LUX 6" x 9" Kraft Open End Envelopes, 250/Box, 80lb. White (1644-32IJ-250)~#|#~B41393B8-5B55-4641-AD3734DA6368AFC6_sc7
Item: 2146231
Model: 1644-32IJ-250
No reviews yet
Price is $88.09
Unit of measure 250/Pack
Free delivery by Wed, May 06
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Quality Park Gummed Currency Envelopes, 2 1/2" x 4 1/4", Brown, 500/Box (QUA50262)~#|#~sp46039004_sc7
Item: QUA50262
Model: QUA50262
Price is $47.59
Unit of measure Box
Free delivery by Wed, Apr 29
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LUX Slimline Invitation Envelopes (3 7/8 x 8 7/8) 50/Pack, 24lb. Bright White (72973-50)~#|#~sp14807860_sc7
Item: 24260338
Model: 72973-50
Price is $12.69
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper 5.5 x 5.5 Square Invitation Envelopes, Presidential Blue, 25/Pack (263917212)~#|#~sp4808476_sc7JAM Paper 5.5 x 5.5 Square Invitation Envelopes, Presidential Blue, 25/Pack (263917212)~#|#~sp4808475_sc7
Item: 2633101
Model: 263917212
No reviews yet
Price is $35.59
Unit of measure 25/Pack
Free delivery by Mon, May 04
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LUX A2 (4 3/8 x 5 3/4) - Metallics - Champagne 50/Pack, Champagne Metallic (5370-M08-50)~#|#~sp14807665_sc7
Item: 24260595
Model: 5370-M08-50
No reviews yet
Price is $13.59
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper #10 Business Translucent Vellum Envelopes, 4.125 x 9.5, Primary Yellow, 25/Pack (PACV356)~#|#~m002169008_sc7
JAM Paper #10 Business Translucent Vellum Envelopes, 4.125 x 9.5, Primary Yellow, 25/Pack (PACV356) is Out of stock
Item: 262275
Model: PACV356
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Price is $25.49
Unit of measure 25/Pack
JAM Paper Tyvek Open End Clasp Catalog Envelope, 11 1/2" x 14 1/2", Red, 10/Pack (V021388B)~#|#~sp61031269_sc7JAM Paper Tyvek Open End Clasp Catalog Envelope, 11 1/2" x 14 1/2", Red, 10/Pack (V021388B)~#|#~sp61031267_sc7
JAM Paper Tyvek Open End Clasp Catalog Envelope, 11 1/2" x 14 1/2", Red, 10/Pack (V021388B) is Out of stock
Item: 1912861
Model: V021388B
Price is $22.69
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.