Square Envelopes

LUX 3.5 Mil 5 1/4"x7 1/4" A7 Invitation Envelopes W/Peel&Seal, Crystal Clear, 1000/BX~#|#~m000081564_sc7
Item: 514683
Model: CCA7-1000
No reviews yet
Price is $215.69
Free delivery by Mon, Oct 05
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LUX 5 1/2 x 5 1/2 Square Envelopes, 500/Box, Sunflower (EX8515-12-500)~#|#~m000081501_sc7
Item: 387034
Model: EX8515-12-500
No reviews yet
Price is $163.79
Unit of measure 500/Box
Free delivery by Mon, Oct 05
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LUX Square Envelopes, 9" x 9", Silver Metallic, 250ct (8585-06-250)~#|#~m003307876_sc7
Item: 1985051
Model: 8585-06-250
No reviews yet
Price is $137.29
Unit of measure 250/Box
Free delivery by Mon, Oct 05
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 5.4375 x 8.625, Peach, 100/Pack (2783142)~#|#~m000969571_sc7
Item: 235428
Model: 2783142
No reviews yet
Price is $59.99
Unit of measure 100/Pack
Free delivery by Wed, Sep 30
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 1000/Box, Smoke (EX4865-22-1000)~#|#~m000081738_sc7
Item: 386408
Model: EX4865-22-1000
No reviews yet
Price is $149.99
Unit of measure 1000/Box
Free delivery by Mon, Oct 05
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LUX 6 1/2 x 6 1/2 Square Envelopes, 500/Box, Holiday Red (8535-15-500)~#|#~m000081572_sc7
Item: 385804
Model: 8535-15-500
No reviews yet
Price is $91.19
Unit of measure 500/Box
Free delivery by Mon, Oct 05
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JAM Paper A6 Invitation Envelope 4 3/4" x 6 1/2", Presidential Blue, 1000/Carton (563916906B)~#|#~B8041849-AF9D-49AA-BB5013A1FC62123E_sc7JAM Paper A6 Invitation Envelope 4 3/4" x 6 1/2", Presidential Blue, 1000/Carton (563916906B)~#|#~CDE667CC-3177-4E82-9D17BFE4CB125B4E_sc7
Item: 261142
Model: 563916906B
No reviews yet
Price is $350.16
Unit of measure 1000/Carton
Free delivery by Wed, Sep 30
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LUX 5 1/2 x 5 1/2 Square Envelopes, 50/Box, Garnet (EX8515-26-50)~#|#~m000081481_sc7
Item: 282112
Model: EX8515-26-50
No reviews yet
Price is $21.99
Unit of measure 50/Pack
Delivery by Mon, Oct 05
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 250/Box, Gold Metallic (5375-07-250)~#|#~m000081706_sc7
Item: 385202
Model: 5375-07-250
No reviews yet
Price is $80.19
Unit of measure 250/Box
Free delivery by Mon, Oct 05
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Quality Park Self Seal Catalog Envelopes, 9"L x 12"H, Kraft, 25/Box (QUA93334)~#|#~sp44343614_sc7Quality Park Self Seal Catalog Envelopes, 9"L x 12"H, Kraft, 25/Box (QUA93334)~#|#~sp44343613_sc7
Item: QUA93334
Model: QUA93334
Price is $68.09
Unit of measure Pack
Free delivery by Tue, Sep 29
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JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, 25/Pack (1592113)~#|#~m006965559_sc7JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, 25/Pack (1592113)~#|#~m006965558_sc7
Item: 262291
Model: 1592113
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Wed, Sep 30
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JAM Paper Square Envelopes, Peel & Press, Candy Pink, 6 1/4 x 6 1/4, 500 Pack, (8530-23-500)~#|#~sp228873556_sc7
Item: 24578546
Model: 8530-23-500
No reviews yet
Price is $91.39
Unit of measure 500/Pack
Free delivery by Wed, Sep 30
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JAM Paper Square Envelopes, Peel & Press, Citrus Yellow, 6 1/4 x 6 1/4, 500/Pack (8530-L20-500)~#|#~sp228873543_sc7
Item: 24578524
Model: 8530-L20-500
No reviews yet
Price is $86.09
Unit of measure 500/Pack
Free delivery by Wed, Sep 30
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LUX 6 1/2 x 6 1/2 Foil Lined Square Envelopes, 500/Box, White w/Gold LUX Lining (FLWH8535-04-500)~#|#~m000081598_sc7
Item: 513760
Model: FLWH8535-04-500
No reviews yet
Price is $117.39
Free delivery by Mon, Oct 05
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LUX 5 x 5 Square Envelopes, 500/Box, Natural - 100% Recycled (8505-NPC-500)~#|#~m000081528_sc7
Item: 514837
Model: 8505-NPC-500
No reviews yet
Price is $114.09
Free delivery by Mon, Oct 05
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Pack, Blonde Metallic (4872-M07-50)~#|#~sp14807620_sc7
Item: 24260702
Model: 4872-M07-50
Price is $13.69
Unit of measure 50/Pack
Delivery by Mon, Oct 05
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JAM Paper Self Seal Business Envelope, 5 1/4 x 5 1/4 Square, Ruby Red, 250/Pack (LUX-8510-18-250)~#|#~sp226423824_sc7
Item: 24578488
Model: LUX-8510-18-250
No reviews yet
Price is $43.09
Unit of measure 250/Pack
Free delivery by Wed, Sep 30
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LUX 8" x 8" Square Envelopes, Ruby Red, 500/PK (LUX-8565-18-500)~#|#~m003307875_sc7
Item: 1985049
Model: LUX-8565-18-500
No reviews yet
Price is $257.39
Unit of measure 500/Box
Free delivery by Mon, Oct 05
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LUX Double Window Invoice Envelopes (4 1/8 x 9 1/8) 1000/Box, Grocery Bag (INVDW-GB-1M)~#|#~m004063728_sc7
Item: 2147434
Model: INVDW-GB-1M
No reviews yet
Price is $207.19
Unit of measure 1000/Pack
Free delivery by Mon, Oct 05
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JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Orange Recycled, Bulk 1000/Carton (356730548C)~#|#~m003757870_sc7JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Orange Recycled, Bulk 1000/Carton (356730548C)~#|#~m003562854_sc7
Item: 2103413
Model: 356730548C
Price is $271.99
Unit of measure 1000/Carton
Free delivery by Wed, Sep 30
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LUX 5 1/2 x 5 1/2 Square Envelopes, 500/Box, Mandarin (EX8515-11-500)~#|#~m000081488_sc7
Item: 387031
Model: EX8515-11-500
No reviews yet
Price is $163.79
Unit of measure 500/Box
Free delivery by Mon, Oct 05
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JAM Paper 6 x 6 Square Translucent Vellum Invitation Envelopes, Heavy Metal, 25/Pack (1591924)~#|#~m000068890_sc7
Item: 263779
Model: 1591924
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Wed, Sep 30
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LUX 6 1/2 x 6 1/2 Square Envelopes, 250/Box, Baby Blue (EX8535-13-250)~#|#~m000081552_sc7
Item: 387322
Model: EX8535-13-250
No reviews yet
Price is $108.59
Unit of measure 250/Box
Free delivery by Mon, Oct 05
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 250/Box, Azalea Metallic (5375-24-250)~#|#~m000081895_sc7
Item: 385247
Model: 5375-24-250
No reviews yet
Price is $110.79
Unit of measure 250/Box
Free delivery by Mon, Oct 05
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LUX 80lbs. 3 5/8" x 5 1/8" A1 RSVP, Invitation Envelopes W/Peel & Press, Vintage Plum Purple, 250BX~#|#~m000081744_sc7
Item: 388529
Model: LUX-4865-104-25
No reviews yet
Price is $60.19
Unit of measure 250/Box
Free delivery by Mon, Oct 05
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LUX A2 (4 3/8 x 5 3/4) 1000/Box, Limelight (LUX-4870-101-10)~#|#~m000081798_sc7
Item: 388542
Model: LUX-4870-101-10
No reviews yet
Price is $128.99
Unit of measure 1000/Box
Free delivery by Mon, Oct 05
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JAM Paper 5.5 x 5.5 Square Invitation Envelopes, Black Linen, Bulk 1000/Carton (V01210B)~#|#~m003905211_sc7JAM Paper 5.5 x 5.5 Square Invitation Envelopes, Black Linen, Bulk 1000/Carton (V01210B)~#|#~m003905210_sc7
Item: 261607
Model: V01210B
No reviews yet
Price is $564.99
Unit of measure 1000/Carton
Free delivery by Wed, Sep 30
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LUX 4 3/4" x 6 1/2" A6 Invitation Envelopes W/Peel & Press, White/Black LUX, 1000/BX~#|#~m000081966_sc7
Item: 388445
Model: FLWH4875-02-100
No reviews yet
Price is $172.49
Unit of measure 1000/Box
Free delivery by Mon, Oct 05
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JAM Paper 6 x 6 Square Translucent Vellum Invitation Envelopes, Platinum Silver, 25/Pack (PACV576)~#|#~m000068123_sc7
Item: 262268
Model: PACV576
No reviews yet
Price is $33.99
Unit of measure 25/Pack
Delivery by Wed, Sep 30
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JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Clear, Bulk 250/Box (74354H)~#|#~m002168462_sc7
Item: 1589814
Model: 74354H
No reviews yet
Price is $236.99
Unit of measure 250/Box
Free delivery by Wed, Sep 30
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JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Teal, Bulk 1000/Carton (3157507B)~#|#~m003904838_sc7JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Teal, Bulk 1000/Carton (3157507B)~#|#~m003904837_sc7
Item: 364155
Model: 3157507B
No reviews yet
Price is $846.99
Unit of measure 1000/Carton
Free delivery by Wed, Sep 30
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JAM Paper 8.5 x 8.5 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, 25/Pack (1592157)~#|#~m006948424_sc7JAM Paper 8.5 x 8.5 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, 25/Pack (1592157)~#|#~m006948423_sc7
Item: 262292
Model: 1592157
No reviews yet
Price is $33.99
Unit of measure 25/Pack
Delivery by Wed, Sep 30
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JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, Black Linen with Silver Foil, Bulk 1000/Carton (03243688B)~#|#~sp137086436_sc7JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, Black Linen with Silver Foil, Bulk 1000/Carton (03243688B)~#|#~sp137085792_sc7
Item: 262750
Model: 03243688B
No reviews yet
Price is $452.99
Unit of measure 1000/Carton
Free delivery by Wed, Sep 30
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, Midnight Black (F-4565-B-500)~#|#~m000081720_sc7
Item: 514108
Model: F-4565-B-500
No reviews yet
Price is $69.79
Free delivery by Mon, Oct 05
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LUX A6 Foil Lined Invitation Envelopes (4 3/4 x 6 1/2) 500/Box, White w/Black LUX Lining (FLWH4875-02-500)~#|#~m000081966_sc7
Item: 513816
Model: FLWH4875-02-500
No reviews yet
Price is $108.99
Free delivery by Mon, Oct 05
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LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 500/Box, White w/Black LUX Lining (FLWH4872-02-500)~#|#~m000081881_sc7
Item: 513836
Model: FLWH4872-02-500
No reviews yet
Price is $88.69
Free delivery by Mon, Oct 05
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JAM Paper A8 Metallic Invitation Envelopes, 5.5 x 8.125, Stardream Silver, Bulk 1000/Carton (V018294B)~#|#~m004672487_sc7JAM Paper A8 Metallic Invitation Envelopes, 5.5 x 8.125, Stardream Silver, Bulk 1000/Carton (V018294B)~#|#~m004672486_sc7
Item: 262066
Model: V018294B
No reviews yet
Price is $1,015.99
Unit of measure 1000/Carton
Free delivery by Wed, Sep 30
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JAM Paper 6.5 x 6.5 Square Metallic Invitation Envelopes, Stardream Silver, Bulk 250/Box (GCST509H)~#|#~m004672426_sc7JAM Paper 6.5 x 6.5 Square Metallic Invitation Envelopes, Stardream Silver, Bulk 250/Box (GCST509H)~#|#~m004672425_sc7
Item: 1589820
Model: GCST509H
No reviews yet
Price is $314.99
Unit of measure 250/Box
Free delivery by Wed, Sep 30
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JAM Paper Self Seal Invitation Envelope, 7 1/2 x 7 1/2, Midnight Black, 250 Pack, Black (F-8555-B-250)~#|#~sp226423831_sc7JAM Paper Self Seal Invitation Envelope, 7 1/2 x 7 1/2, Midnight Black, 250 Pack, Black (F-8555-B-250)~#|#~sp226423830_sc7
Item: 24578520
Model: F-8555-B-250
No reviews yet
Price is $59.79
Unit of measure 250/Pack
Free delivery by Wed, Sep 30
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Green, 1000/Carton (15862B)~#|#~sp111772450_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Green, 1000/Carton (15862B)~#|#~sp111772449_sc7
Item: 261287
Model: 15862B
No reviews yet
Price is $249.29
Unit of measure 1000/Carton
Free delivery by Wed, Sep 30
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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.