Square Envelopes

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 Clasp Catalog Envelope, 9" x 12", White, 100/Box (38390)~#|#~s0055833_sc7Quality Park Clasp Catalog Envelope, 9" x 12", White, 100/Box (38390)~#|#~m000015892_sc7
Item: QUA38390
Model: QUA38390
Price is $61.65
Unit of measure Box
Free delivery by Thu, Apr 30
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JAM Paper #11 Policy Business Envelopes, 4.5 x 10.375, White, 25/Pack (1623187)~#|#~sp123308000_sc7JAM Paper #11 Policy Business Envelopes, 4.5 x 10.375, White, 25/Pack (1623187)~#|#~sp123307999_sc7
Item: 366524
Model: 1623187
No reviews yet
Price is $14.89
Unit of measure 25/Pack
Delivery by Mon, May 04
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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, May 04
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JAM Paper 10 x 13 Open End Catalog Envelopes, Black, 100/Pack (87733)~#|#~B1D4FB9C-0CB6-4AC4-A48115CC37369FA3_sc7JAM Paper 10 x 13 Open End Catalog Envelopes, Black, 100/Pack (87733)~#|#~BEF8D724-0DA6-4440-8ADC3B053171968F_sc7
Item: 261785
Model: 87733
Price is $63.49
Unit of measure 100/Box
Free delivery by Mon, May 04
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JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Red Recycled, 25/Pack (356730541)~#|#~m003757864_sc7JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Red Recycled, 25/Pack (356730541)~#|#~m003562843_sc7
Item: 2103489
Model: 356730541
No reviews yet
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, May 04
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JAM Paper Tear-Proof Tyvek Open End Catalog Envelopes, 9" x 12", White Airmail, 10/Pack (2131102A)~#|#~m004542919_sc7JAM Paper Tear-Proof Tyvek Open End Catalog Envelopes, 9" x 12", White Airmail, 10/Pack (2131102A)~#|#~m004542918_sc7
Item: 2329402
Model: 2131102A
No reviews yet
Price is $19.29
Unit of measure 10/Pack
Delivery by Mon, May 04
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Partners Brand Tyvek Self Seal Catalog Envelope 12" x 15 1/2", Red, 100/Carton (TYC1215R)~#|#~1461A7B1-6806-4B95-BEA67C806C3BEC9C_sc7
Item: 2301099
Model: TYC1215R
No reviews yet
Price is $195.19
Unit of measure 100/Carton
Free delivery by Mon, May 04
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JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Yellow Recycled, 25/Pack (96326)~#|#~m003904698_sc7JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Yellow Recycled, 25/Pack (96326)~#|#~m003904697_sc7
Item: 260983
Model: 96326
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, May 04
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JAM Paper A8 Invitation Envelopes, 5.5 x 8.125, White, 50/Pack (4023981I)~#|#~sp121512004_sc7JAM Paper A8 Invitation Envelopes, 5.5 x 8.125, White, 50/Pack (4023981I)~#|#~sp121512003_sc7
Item: 1589114
Model: 4023981I
Price is $14.89
Unit of measure 50/Pack
Delivery by Mon, May 04
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Quality Park Kraft #5 1/2 Envelope 3 1/8" x 5 1/2", Brown, 500/Box (QUA50562)~#|#~sp46039003_sc7
Item: 638561
Model: QUA50562
Price is $167.39
Unit of measure 500/Box
Free delivery by Tue, Apr 28
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 500/Box, Garnet (LUX-4872-26-500)~#|#~m000081858_sc7
Item: 513668
Model: LUX-4872-26-500
No reviews yet
Price is $108.49
Free delivery by Wed, May 06
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Quality Park Redi-Seal Catalog Envelope, 6" x 9", White, 100/Box (43117)~#|#~s0171342_sc7
Item: QUA43117
Model: QUA43117
Price is $33.79
Unit of measure Box
Delivery by Wed, Apr 29
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Quality Park Flap-Stick® Tyvek® FCB Open-Side Expansion Envelopes, 10" x 13" x 2", White, 100/Ct~#|#~s0462615_sc7
Item: QUAR4440
Model: QUAR4440
No reviews yet
Price is $158.19
Unit of measure Carton
Free delivery by Thu, Apr 30
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JAM Paper A8 Invitation Envelopes, 5.5 x 8.125, Baby Blue, 50/Pack (155630I)~#|#~m003904710_sc7JAM Paper A8 Invitation Envelopes, 5.5 x 8.125, Baby Blue, 50/Pack (155630I)~#|#~m003904709_sc7
Item: 1589138
Model: 155630I
No reviews yet
Price is $25.29
Unit of measure 50/Pack
Delivery by Mon, May 04
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JAM Paper Cellophane Envelope with Peel & Seal Closure, 10 x 13, Clear, 100/Pack (10X13CELLO)~#|#~m000068422_sc7
Item: 262916
Model: 10X13CELLO
Price is $76.89
Unit of measure 100/Pack
Free delivery by Mon, May 04
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JAM Paper Cellophane Envelope with Peel & Seal Closure, A7, 5.4375 x 7.375, Clear, 100/Pack (A7CELLO)~#|#~m000068417_sc7
Item: 262895
Model: A7CELLO
Price is $35.69
Unit of measure 100/Pack
Free delivery by Mon, May 04
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JAM Paper 7.5 x 10.5 Booklet Commercial Envelopes, White, 25/Pack (4246)~#|#~sp112110472_sc7JAM Paper 7.5 x 10.5 Booklet Commercial Envelopes, White, 25/Pack (4246)~#|#~sp112110461_sc7
Item: 366120
Model: 4246
Price is $9.59
Unit of measure 25/Pack
Delivery by Mon, May 04
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Baby Blue (EX4870-13-50)~#|#~m000081767_sc7
Item: 282433
Model: EX4870-13-50
Price is $13.29
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, Dark Green, 50/Pack (1512744i)~#|#~m006948615_sc7JAM Paper A2 Invitation Envelopes, 4.375 x 5.75, Dark Green, 50/Pack (1512744i)~#|#~m006948614_sc7
Item: 2478165
Model: 1512744I
No reviews yet
Price is $21.59
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Black Linen (4872-BLI-50)~#|#~m000081688_sc7
Item: 282538
Model: 4872-BLI-50
No reviews yet
Price is $13.69
Unit of measure 50/Pack
Delivery by Wed, May 06
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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, May 04
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Quality Park Tyvek Open End Flap-Stik Expansion Self Seal Catalog Envelope, 12" x 16" x 2", White, 100/Carton (R4650)~#|#~s0171555_sc7
Item: 427811
Model: QUAR4650
No reviews yet
Price is $403.89
Unit of measure 100/Carton
Free delivery by Thu, Apr 30
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LUX A2 (4 3/8 x 5 3/4) - 70lb. White Wove 50/Pack, 70lb. Bright White (20446-50)~#|#~sp14807858_sc7
Item: 24260337
Model: 20446-50
No reviews yet
Price is $13.29
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, 50/Pack (66670I)~#|#~sp132864423_sc7JAM Paper A2 Strathmore Invitation Envelopes, 4.375 x 5.75, Bright White Linen, 50/Pack (66670I)~#|#~sp132864422_sc7
Item: 1588956
Model: 66670I
No reviews yet
Price is $20.49
Unit of measure 50/Pack
Delivery by Mon, May 04
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Quality Park Button & String Inter-Departmental Envelope 10" x 13", Yellow, 100/Carton (QUA63576)~#|#~sp42126945_sc7Quality Park Button & String Inter-Departmental Envelope 10" x 13", Yellow, 100/Carton (QUA63576)~#|#~sp42126944_sc7
Item: 912032
Model: QUA63576
Price is $132.39
Unit of measure 100/Carton
Free delivery by Tue, Apr 28
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LUX 4 x 6 3/8 Kraft Open End - 32lb. Brown Kraft 250/Pack, 32lb. Brown Kraft (WS-5504-250)~#|#~sp5822112_sc7LUX 4 x 6 3/8 Kraft Open End - 32lb. Brown Kraft 250/Pack, 32lb. Brown Kraft (WS-5504-250)~#|#~sp5874368_sc7
Item: 23996372
Model: WS-5504-250
No reviews yet
Price is $73.19
Unit of measure 250/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 Green, 50/Pack (86555I)~#|#~6D72CF40-FFBC-49D2-943889305B5B19A6_sc7
Item: 1588698
Model: 86555I
Price is $17.09
Unit of measure 50/Pack
Delivery by Mon, May 04
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JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, White with Gold Foil, 25/Pack (3243663)~#|#~sp115352141_sc7JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, White with Gold Foil, 25/Pack (3243663)~#|#~sp115352140_sc7
Item: 262760
Model: 3243663
Price is $16.69
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, Quartz Metallic (4872-08-50)~#|#~250367C6-45DB-4F88-9177FAFC4B1AFD73_sc7LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Pack, Quartz Metallic (4872-08-50)~#|#~4D69F00C-F9F6-49E5-881FF0011E5F45B6_sc7
Item: 24260555
Model: 4872-08-50
No reviews yet
Price is $13.69
Unit of measure 50/Pack
Delivery by Wed, May 06
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70 lb 5 3/4" x 5 3/4" Peel & Press Square Envelopes, Bright White, 50/Pack~#|#~m001149702_sc7
Item: 1030023
Model: 8520-70W-50
Price is $29.89
Delivery by Wed, May 06
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LUX A7 Square Flap Invitation Envelopes with Peel & Press, 5.25" x 7.25", White, 50/Pack (4880-WPP-50)~#|#~m005902302_sc7LUX A7 Square Flap Invitation Envelopes with Peel & Press, 5.25" x 7.25", White, 50/Pack (4880-WPP-50)~#|#~m005823931_sc7
Item: 282722
Model: 4880-WPP-50
Price is $26.09
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Orange Recycled, Bulk 500/Box (356730558H)~#|#~m003757870_sc7JAM Paper #6 Coin Business Colored Envelopes, 3.375 x 6, Orange Recycled, Bulk 500/Box (356730558H)~#|#~m003750595_sc7
Item: 2103385
Model: 356730558H
No reviews yet
Price is $152.99
Unit of measure 500/Box
Free delivery by Mon, May 04
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JAM Paper Self Seal #7 Coin Business Envelopes, 3 1/2" x 6 1/2", White, 100/Pack (356838558D)~#|#~E333F153-05BB-4039-B4D2771F50F049A8_sc7
Item: 24557927
Model: 356838558D
No reviews yet
Price is $31.69
Unit of measure 100/Pack
Delivery by Mon, May 04
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Orange, 50/Pack (15860I)~#|#~sp112110495_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Orange, 50/Pack (15860I)~#|#~sp112110494_sc7
Item: 1588559
Model: 15860I
Price is $17.09
Unit of measure 50/Pack
Delivery by Mon, May 04
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JAM Paper #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Brown Kraft, 25/Pack (6314842)~#|#~sp74308924_sc7JAM Paper #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Brown Kraft, 25/Pack (6314842)~#|#~sp74308921_sc7
Item: 261536
Model: 6314842
Price is $20.49
Unit of measure 25/Pack
Delivery by Mon, May 04
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JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", White, 50/Pack (49856I)~#|#~sp115352044_sc7JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", White, 50/Pack (49856I)~#|#~sp115352043_sc7
Item: 1588599
Model: 49856I
Price is $17.09
Unit of measure 50/Pack
Delivery by Mon, May 04
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Smead Button & String Booklet Envelope, 9 3/4" x 11 5/8", Purple, 5/Pk (SMD89544)~#|#~s0174290_sc7Smead Button & String Booklet Envelope, 9 3/4" x 11 5/8", Purple, 5/Pk (SMD89544)~#|#~m002278887_sc7
Smead Ultracolor Top-Load Envelopes, Letter, 1" Expansion, Purple, 5/Pack (89544) is Out of stock
Item: SMD89544
Model: SMD89544
No reviews yet
Price is $12.49
Unit of measure 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.