Square Envelopes

JAM Paper Expandable Open End Catalog Envelopes with Peel & Seal Closure, 4.5 x 9.5 x 2, White, 250/Box (376634173b)~#|#~sp74203689_sc7JAM Paper Expandable Open End Catalog Envelopes with Peel & Seal Closure, 4.5 x 9.5 x 2, White, 250/Box (376634173b)~#|#~sp74203981_sc7
Item: 24295260
Model: 376634173B
No reviews yet
Price is $383.59
Unit of measure 250/Pack
Free delivery by Mon, May 04
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JAM Paper Currency Envelope, 3" x 6 11/16", White, 25/Pack (216313691)~#|#~sp137086240_sc7
Item: 2633148
Model: 216313691
Price is $9.89
Unit of measure 25/Pack
Delivery by Mon, May 04
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, 24lb. White~#|#~m004064012_sc7
Item: 2146365
Model: 51867-MI-500
Price is $50.79
Unit of measure 500/Pack
Free delivery by Wed, May 06
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Staples EasyClose Kraft Catalog Envelopes, 10"L x 13"H, Brown, 250/Box (479889/14238)~#|#~39DE7F1F-13EC-4261-9CA9D656EB65A184_sc7Staples EasyClose Kraft Catalog Envelopes, 10"L x 13"H, Brown, 250/Box (479889/14238)~#|#~2D53154E-9824-42CF-8F9FDB58D2FEF62F_sc7
Item: 479889
Model: ST479889-CC
Price is $71.09
Unit of measure 250/Box
Free delivery by Tue, Apr 28
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LUX Double Window Envelope, 3 5/8" x 8 7/8", Bright White, 250/Pack (57633-250)~#|#~sp14807327_sc7
Item: 24261333
Model: 57633-250
Price is $92.49
Unit of measure 250/Pack
Free delivery by Wed, May 06
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Quality Park Survivor Tyvek Self Seal Document Envelope 10" x 13", White, 100/Box (QUAR2420)~#|#~sp42114217_sc7Quality Park Survivor Tyvek Self Seal Document Envelope 10" x 13", White, 100/Box (QUAR2420)~#|#~sp42114216_sc7
Item: 70505
Model: QUAR2420
No reviews yet
Price is $225.09
Unit of measure 100/Box
Free delivery by Thu, Apr 30
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JAM Paper Peel & Seal Kraft Open End Catalog Envelope, 6 1/2" x 9 1/2", Brown, 500/Pack (13034229C)~#|#~sp20131829_sc7JAM Paper Peel & Seal Kraft Open End Catalog Envelope, 6 1/2" x 9 1/2", Brown, 500/Pack (13034229C)~#|#~sp20131827_sc7
Item: 24295087
Model: 13034229C
Price is $191.79
Unit of measure 500/Pack
Free delivery by Mon, May 04
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LUX 5 1/2 x 8 1/2 Booklet Envelopes 50/Pack, 24lb. Bright White (49420-50)~#|#~sp14807389_sc7
Item: 24261177
Model: 49420-50
Price is $16.19
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper A2 Strathmore Invitation Envelopes, 4.375 x 5.75, Bright White Linen, 25/Pack (66670)~#|#~m007159143_sc7JAM Paper A2 Strathmore Invitation Envelopes, 4.375 x 5.75, Bright White Linen, 25/Pack (66670)~#|#~m007159142_sc7
Item: 262488
Model: 66670
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, May 04
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Quality Park Survivor Self Seal Catalog Envelopes, 12"L x 16"H, White, 25/Box (QUAR4292)~#|#~sp44490036_sc7Quality Park Survivor Self Seal Catalog Envelopes, 12"L x 16"H, White, 25/Box (QUAR4292)~#|#~sp44490035_sc7
Item: QUAR4292
Model: QUAR4292
Price is $80.79
Unit of measure Box
Free delivery by Thu, Apr 30
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Quality Park Gummed Open Side Booklet Envelopes, 10" x 13", White, 100/Bx~#|#~s0511676_sc7
Item: QUA37613
Model: QUA37613
No reviews yet
Price is $61.45
Unit of measure Box
Free delivery by Wed, Apr 29
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Quality Park Gummed #6 1/2 Booklet Envelope, 6" x 9", White, 500/Box (37181)~#|#~s0511674_sc7
Item: QUA37181
Model: QUA37181
No reviews yet
Price is $146.79
Unit of measure Box
Free delivery by Thu, Apr 30
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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 $20.89
Unit of measure 50/Pack
Delivery by Wed, May 06
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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 $165.39
Unit of measure 250/Box
Free delivery by Wed, May 06
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LUX A7 Foil Lined Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Black w/Gold LUX Lining (FLBK4880-04-50)~#|#~m000082007_sc7
Item: 282736
Model: FLBK4880-04-50
Price is $42.19
Unit of measure 50/Pack
Free delivery by Wed, May 06
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JAM Paper A6 Invitation Envelopes, 4.75 x 6.5, Aqua Blue, 25/Pack (157460)~#|#~m002934473_sc7JAM Paper A6 Invitation Envelopes, 4.75 x 6.5, Aqua Blue, 25/Pack (157460)~#|#~m002934472_sc7
Item: 363598
Model: 157460
No reviews yet
Price is $13.49
Unit of measure 25/Pack
Delivery by Mon, May 04
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LUX Square Flap Self Seal #10 Invitation Envelope, 4 1/2" x 9 1/2", Sunflower, 50/Pack (EX4860-12-50)~#|#~sp14807340_sc7
Item: 24261325
Model: EX4860-12-50
No reviews yet
Price is $22.69
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, Ultra Fuchsia Pink, Bulk 500/Box (1526767H)~#|#~m003184166_sc7
Item: 2103178
Model: 1526767H
No reviews yet
Price is $172.79
Unit of measure 500/Box
Free delivery by Mon, May 04
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Lux Jumbo Kraft Envelope 13 x 19 inch Brown Kraft 50/Pack (22663-50)~#|#~82990767-D37C-4AFE-BFECAB3DBD5670A8_sc7
Item: 1559118
Model: 22663-50
Price is $147.79
Free delivery by Wed, May 06
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JAM Paper Kraft A7 Invitation Envelopes, 5.25 x 7.25, Brown Kraft Paper Bag, 25/Pack (LEKR700)~#|#~m004672451_sc7JAM Paper Kraft A7 Invitation Envelopes, 5.25 x 7.25, Brown Kraft Paper Bag, 25/Pack (LEKR700)~#|#~m004672450_sc7
Item: 261529
Model: LEKR700
Price is $14.29
Unit of measure 25/Pack
Delivery by Mon, May 04
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Quality Park Survivor Self Seal Catalog Envelopes, 10"L x 13"H, White, 25/Box (QUAR4202)~#|#~sp44490032_sc7Quality Park Survivor Self Seal Catalog Envelopes, 10"L x 13"H, White, 25/Box (QUAR4202)~#|#~sp44490031_sc7
Item: QUAR4202
Model: QUAR4202
Price is $78.69
Unit of measure 25/Box
Free delivery by Wed, Apr 29
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LUX A7 Gatefold Invitation (5 x 7) 100/Pack, Black Linen (A7GF-BLI-100)~#|#~sp14807752_sc7
Item: 24260784
Model: A7GF-BLI-100
No reviews yet
Price is $64.29
Unit of measure 100/Pack
Free delivery by Wed, May 06
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Quality Park Redi-Strip Security Tinted #10 Treated Business Envelopes, 4 1/8" x 9 1/2", White Wove, 500/Box ~#|#~s1154906_sc7Quality Park Redi-Strip Security Tinted #10 Treated Business Envelopes, 4 1/8" x 9 1/2", White Wove, 500/Box ~#|#~s1172750_sc7
Item: 683586
Model: QUA90019R
Price is $95.99
Unit of measure 500/Box
Free delivery by Tue, Apr 28
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LUX 6" x 9" Kraft Open End Envelopes, 50/Box, 80lb. White (1644-32IJ-50)~#|#~A8680A48-70B0-491A-B4948FDAB7C9F17F_sc7LUX 6" x 9" Kraft Open End Envelopes, 50/Box, 80lb. White (1644-32IJ-50)~#|#~1ACF01AF-CC54-4E8A-98438F82A75F2248_sc7
Item: 2146232
Model: 1644-32IJ-50
No reviews yet
Price is $18.59
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper 5.5 x 7.5 Open End Catalog Envelopes, White, 50/Pack (4100H)~#|#~sp115352012_sc7JAM Paper 5.5 x 7.5 Open End Catalog Envelopes, White, 50/Pack (4100H)~#|#~sp115352011_sc7
Item: 2329385
Model: 4100H
Price is $14.89
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX #3 Coin Envelopes (2 1/2 x 4 1/4) 250/Pack, 24lb. Bright White (94714-250)~#|#~sp14807644_sc7
Item: 24260188
Model: 94714-250
No reviews yet
Price is $24.29
Unit of measure 250/Pack
Delivery by Wed, May 06
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LUX 8 1/2 x 10 1/2 Open End Envelopes 50/Pack, 70lb. Bright White (4892-W-50)~#|#~sp14807532_sc7
Item: 24260530
Model: 4892-W-50
No reviews yet
Price is $35.69
Unit of measure 50/Pack
Free delivery by Wed, May 06
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JAM Paper Peel & Seal #10 Business Envelope, 4 1/8" x 9 1/2", Christmas Red, 50/Pack (11789I)~#|#~sp36388124_sc7JAM Paper Peel & Seal #10 Business Envelope, 4 1/8" x 9 1/2", Christmas Red, 50/Pack (11789I)~#|#~sp36388044_sc7
Item: 1588623
Model: 11789I
Price is $16.99
Unit of measure 50/Pack
Delivery by Mon, May 04
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JAM Paper A6 Strathmore Invitation Envelopes, 4.75 x 6.5, Natural White Wove, 25/Pack (30243)~#|#~m007159123_sc7JAM Paper A6 Strathmore Invitation Envelopes, 4.75 x 6.5, Natural White Wove, 25/Pack (30243)~#|#~m007159122_sc7
Item: 263993
Model: 30243
No reviews yet
Price is $10.89
Unit of measure 25/Pack
Delivery by Mon, May 04
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Quality Park Clasp & Moistenable Glue Catalog Envelopes, 4" x 6.38", Brown Kraft, 100/Box (QUA37815)~#|#~sp42116464_sc7Quality Park Clasp & Moistenable Glue Catalog Envelopes, 4" x 6.38", Brown Kraft, 100/Box (QUA37815)~#|#~sp42116463_sc7
Item: QUA37815
Model: QUA37815
No reviews yet
Price is $32.39
Unit of measure Box
Delivery by Wed, Apr 29
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Universal Gummed Kraft Catalog Envelope, 10" x 13", Light Brown, 250/Box (UNV44105)~#|#~sp4614075_sc7
Item: 2598456
Model: 44105
No reviews yet
Price is $84.99
Free delivery by Thu, Apr 30
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LUX 28lbs. 11" x 17" Kraft Open End Flap Jumbo Envelopes, Brown Kraft, 250/BX~#|#~m000081444_sc7
Item: 385689
Model: 83478-250
Price is $197.79
Unit of measure 250/Box
Free delivery by Wed, May 06
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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, May 04
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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 delivery by Tue, Apr 28
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Quality Park Gummed Kraft Catalog Envelope, 9 1/2" x 12 1/2", Kraft, 250/Box (41565)~#|#~s0171318_sc7
Item: 377336
Model: QUA41565
Price is $78.59
Unit of measure 250/Box
Free delivery by Wed, Apr 29
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JAM Paper Gummed A7 Invitation Envelopes, 5 1/4" x 7 1/4", White, 250/Box (73767H)~#|#~sp70241006_sc7JAM Paper Gummed A7 Invitation Envelopes, 5 1/4" x 7 1/4", White, 250/Box (73767H)~#|#~sp70241005_sc7
Item: 1590181
Model: 73767H
Price is $50.49
Unit of measure 250/Box
Free delivery by Mon, May 04
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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, May 04
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Quality Park Survivor Tyvek Self Seal Catalog Envelopes, 13" x 10", White, 100/Box (QUAR1580)~#|#~sp40316063_sc7Quality Park Survivor Tyvek Self Seal Catalog Envelopes, 13" x 10", White, 100/Box (QUAR1580)~#|#~sp40316062_sc7
Item: 641878
Model: QUAR1580
Price is $134.99
Unit of measure 100/Box
Free delivery by Thu, Apr 30
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JAM Paper Open End Open End Catalog Envelope, 9" x 12", White, 50/Pack (1623197I)~#|#~sp111772495_sc7JAM Paper Open End Open End Catalog Envelope, 9" x 12", White, 50/Pack (1623197I)~#|#~sp111772494_sc7
Item: 24006023
Model: 1623197I
Price is $26.19
Unit of measure 50/Pack
Delivery by Mon, May 04
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Quality Park Self Seal Kraft Catalog Envelopes, 10"L x 13"H, Brown, 25/Pack (QUA93336)~#|#~sp43815465_sc7Quality Park Self Seal Kraft Catalog Envelopes, 10"L x 13"H, Brown, 25/Pack (QUA93336)~#|#~sp43815464_sc7
Item: 445596
Model: QUA93336
Price is $67.49
Unit of measure 25/Pack
Free delivery by Tue, Apr 28
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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.