Square Envelopes

LUX A6 Foil Lined Invitation Envelopes (4 3/4 x 6 1/2) 500/Box, White w/Silver LUX Lining (FLWH4875-03-500)~#|#~m000081969_sc7
Item: 513815
Model: FLWH4875-03-500
No reviews yet
Price is $97.89
Free delivery by Fri, May 08
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LUX 6 1/2 x 6 1/2 Foil Lined Square Envelopes, 500/Box, White w/Silver LUX Lining (FLWH8535-03-500)~#|#~m000081600_sc7
Item: 513763
Model: FLWH8535-03-500
No reviews yet
Price is $124.99
Free delivery by Fri, May 08
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JAM Paper A6 Colored Invitation Envelopes, 4.75 x 6.5, Red Recycled, Bulk 250/Box (67503H)~#|#~sp115352048_sc7JAM Paper A6 Colored Invitation Envelopes, 4.75 x 6.5, Red Recycled, Bulk 250/Box (67503H)~#|#~sp115352047_sc7
Item: 1589098
Model: 67503H
No reviews yet
Price is $81.29
Unit of measure 250/Box
Free delivery by Wed, May 06
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JAM Paper A10 Translucent Vellum Invitation Envelopes, 6 x 9.5, Gold, Bulk 250/Box (PACV867H)~#|#~m003905199_sc7JAM Paper A10 Translucent Vellum Invitation Envelopes, 6 x 9.5, Gold, Bulk 250/Box (PACV867H)~#|#~m003905198_sc7
Item: 1590070
Model: PACV867H
No reviews yet
Price is $283.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Garnet (EX4865-26-50)~#|#~m000081704_sc7
Item: 282366
Model: EX4865-26-50
No reviews yet
Price is $16.89
Unit of measure 50/Pack
Delivery by Fri, May 08
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LUX 5 3/4" x 8 3/4" 60lbs. Square Flap Envelopes W/Peel & Press, White/Red LUX Lining~#|#~m000082191_sc7
Item: 282957
Model: FLWH4895-01-50
No reviews yet
Price is $25.39
Unit of measure 50/Pack
Delivery by Fri, May 08
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LUX 5 1/2 x 5 1/2 Square Envelopes, 50/Box, Sunflower (EX8515-12-50)~#|#~m000081501_sc7
Item: 282132
Model: EX8515-12-50
No reviews yet
Price is $33.19
Unit of measure 50/Pack
Delivery by Fri, May 08
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80 lb 5 3/4" x 5 3/4" Peel & Press Square Envelopes, Navy Blue, 50/Pack~#|#~m001149720_sc7
Item: 1029931
Model: LUX-8520-103-50
Price is $21.99
Delivery by Fri, May 08
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JAM Paper 6 x 6 Square Invitation Envelopes, Dark Red, Bulk 250/Box (31511296H)~#|#~m002934224_sc7JAM Paper 6 x 6 Square Invitation Envelopes, Dark Red, Bulk 250/Box (31511296H)~#|#~m002934223_sc7
Item: 1589826
Model: 31511296H
No reviews yet
Price is $283.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Copper, 50/Pack (V018251I)~#|#~m003905245_sc7JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Copper, 50/Pack (V018251I)~#|#~m003905244_sc7
Item: 1589061
Model: V018251I
No reviews yet
Price is $39.99
Unit of measure 50/Pack
Free delivery by Wed, May 06
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Quality Park Redi-Seal Kraft Catalog Envelope, 9 1/2" x 12 1/2", Kraft, 100/Bx (43667)~#|#~s0293005_sc7Quality Park Redi-Seal Kraft Catalog Envelope, 9 1/2" x 12 1/2", Kraft, 100/Bx (43667)~#|#~s0171353_sc7
Item: QUA43667
Model: QUA43667
Price is $61.99
Unit of measure Box
Free delivery by Mon, May 04
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, Jupiter Metallic (5365-20-500)~#|#~m000081712_sc7
Item: 515811
Model: 5365-20-500
No reviews yet
Price is $113.69
Free delivery by Fri, May 08
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JAM Paper 6 x 6 Square Invitation Envelopes, Dark Grey, 50/Pack (36396439I)~#|#~m004671979_sc7JAM Paper 6 x 6 Square Invitation Envelopes, Dark Grey, 50/Pack (36396439I)~#|#~m004671978_sc7
Item: 1588463
Model: 36396439I
No reviews yet
Price is $58.99
Unit of measure 50/Pack
Free delivery by Wed, May 06
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JAM Paper 6 x 6 Square Foil Lined Invitation Envelopes, White with Silver Foil, 25/Pack (3244688)~#|#~m004671941_sc7JAM Paper 6 x 6 Square Foil Lined Invitation Envelopes, White with Silver Foil, 25/Pack (3244688)~#|#~m004671940_sc7
Item: 262778
Model: 3244688
No reviews yet
Price is $18.99
Unit of measure 25/Pack
Delivery by Wed, May 06
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Bronze Metallic (5365-12-50)~#|#~m000081692_sc7
Item: 282354
Model: 5365-12-50
No reviews yet
Price is $14.19
Unit of measure 50/Pack
Delivery by Fri, May 08
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JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Gold, 25/Pack (GCST608)~#|#~m003905132_sc7JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Gold, 25/Pack (GCST608)~#|#~m003905131_sc7
Item: 261966
Model: GCST608
Price is $24.99
Unit of measure 25/Pack
Delivery by Wed, May 06
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LUX Slimline Invitation Envelopes (3 7/8 x 8 7/8) 250/Box, Midnight Black (LUX-72973-B-250)~#|#~m001149686_sc7
Item: 1029934
Model: LUX-72973-B-250
No reviews yet
Price is $69.09
Free delivery by Fri, May 08
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JAM Paper A8 Translucent Vellum Invitation Envelopes, 5.5 x 8.125, Clear, Bulk 250/Box (79462H)~#|#~m002168797_sc7
Item: 1589928
Model: 79462H
No reviews yet
Price is $227.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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LUX 6 1/2 x 6 1/2 Foil Lined Square Envelopes, 50/Box, White w/Silver LUX Lining (FLWH8535-03-50)~#|#~m000081600_sc7
Item: 282243
Model: FLWH8535-03-50
No reviews yet
Price is $25.89
Unit of measure 50/Pack
Delivery by Fri, May 08
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LUX #1 Coin Envelopes (2 1/4 x 3 1/2) 50/Pack, Citrus (LUX-1CO-20-50)~#|#~sp14807757_sc7
Item: 24260760
Model: LUX-1CO-20-50
No reviews yet
Price is $20.89
Unit of measure 50/Pack
Delivery by Fri, May 08
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LUX A2 (4 3/8 x 5 3/4) 1000/Box, White Linen (4870-WLI-1000)~#|#~m000161359_sc7
Item: 384749
Model: 4870-WLI-1000
Price is $101.19
Unit of measure 1000/Box
Free delivery by Fri, May 08
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LUX #1 Coin Envelopes (2 1/4 x 3 1/2) 1000/Box, Taupe Metallic (1CO-M09-1000)~#|#~m004846886_sc7
Item: 2444734
Model: 1CO-M09-1000
No reviews yet
Price is $117.89
Unit of measure 1000/Pack
Free delivery by Fri, May 08
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LUX 6 1/2 x 6 1/2 Square Envelopes, 500/Box, Baby Blue (EX8535-13-500)~#|#~m000081552_sc7
Item: 514181
Model: EX8535-13-500
No reviews yet
Price is $180.29
Free delivery by Fri, May 08
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LUX 6 1/2 x 6 1/2 Square Envelopes, 250/Box, Garnet (EX8535-26-250)~#|#~m000081586_sc7
Item: 387349
Model: EX8535-18-250
No reviews yet
Price is $108.89
Unit of measure 250/Box
Free delivery by Fri, May 08
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LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 250/Box, Smoke w/Silver LUX Lining (FLSM4872-03-250)~#|#~m000081876_sc7
Item: 513842
Model: FLSM4872-03-250
Price is $115.79
Free delivery by Fri, May 08
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LUX A2 (4 3/8 x 5 3/4) 250/Box, Midnight Black (F-4570-B-250)~#|#~m000081720_sc7
Item: 387502
Model: F-4570-B-250
No reviews yet
Price is $50.59
Unit of measure 250/Box
Free delivery by Fri, May 08
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 250/Box, Aquamarine Metallic (5365-02-250)~#|#~m000081684_sc7
Item: 385052
Model: 5365-02-250
No reviews yet
Price is $59.39
Unit of measure 250/Box
Free delivery by Fri, May 08
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JAM Paper 8.5 x 8.5 Square Colored Invitation Envelopes, Red Recycled, Bulk 250/Box(2794374H)~#|#~m002934119_sc7JAM Paper 8.5 x 8.5 Square Colored Invitation Envelopes, Red Recycled, Bulk 250/Box(2794374H)~#|#~m002934118_sc7
Item: 1589850
Model: 2794374H
No reviews yet
Price is $236.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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LUX Slimline Invitation Envelopes (3 7/8 x 8 7/8) 250/Box, 70lb. Natural (72973-01-250)~#|#~m001149708_sc7
Item: 1028603
Model: 72973-01-250
No reviews yet
Price is $52.99
Free delivery by Fri, May 08
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LUX 6 1/2 x 6 1/2 Square Envelopes, 500/Box, Ruby Red (EX8535-18-500)~#|#~m000081586_sc7
Item: 387354
Model: EX8535-18-500
No reviews yet
Price is $180.29
Unit of measure 500/Box
Free delivery by Fri, May 08
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LUX 80lb 3 5/8"x5 1/8" A1 Invitation Envelopes W/Peel&Press, Bright White, 1000/BX~#|#~m000211246_sc7
Item: 513977
Model: FE4565-05-1000
No reviews yet
Price is $140.29
Free delivery by Fri, May 08
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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, May 06
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 250/Box, Clear Translucent (4885-00-250)~#|#~m000082127_sc7
Item: 515950
Model: 4885-00-250
No reviews yet
Price is $128.29
Free delivery by Fri, May 08
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LUX A7 Foil Lined Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, Smoke w/Silver LUX Lining (FLSM4880-03-500)~#|#~m000082081_sc7
Item: 513841
Model: FLSM4880-03-500
No reviews yet
Price is $181.49
Free delivery by Fri, May 08
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, Wisteria (LUX-4865-106500)~#|#~m000081748_sc7
Item: 517500
Model: LUX-4865-106500
No reviews yet
Price is $98.29
Free delivery by Fri, May 08
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LUX Moistenable Glue Envelope 3 1/8" x 6 1/4", Electric Orange, 500/Pack (WS-7611-500)~#|#~E57CB32D-215A-4DE5-BA529881E162AA9E_sc7LUX Moistenable Glue Envelope 3 1/8" x 6 1/4", Electric Orange, 500/Pack (WS-7611-500)~#|#~59043B3F-1198-4F9B-A0D39F17DE20C945_sc7
Item: 23996822
Model: WS-7611-500
No reviews yet
Price is $78.89
Unit of measure 500/Pack
Free delivery by Fri, May 08
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JAM Paper 6 x 6 Square Metallic Invitation Envelopes, Stardream Opal, 25/Pack (GCST500)~#|#~m000068005_sc7
Item: 262026
Model: GCST500
Price is $37.49
Unit of measure 25/Pack
Free delivery by Wed, May 06
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LUX 5 x 5 Square Envelopes, 500/Box, Holiday Red (8505-15-500)~#|#~m000081526_sc7
Item: 385708
Model: 8505-15-500
No reviews yet
Price is $73.89
Unit of measure 500/Box
Free delivery by Fri, May 08
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LUX A8 Foil Lined Invitation Envelopes (5 1/2 x 8 1/8) 1000/Box, White w/Red LUX Lining (FLWH4885-011000)~#|#~m000082135_sc7
Item: 517304
Model: FLWH4885-011000
No reviews yet
Price is $260.09
Free delivery by Fri, May 08
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LUX 5 1/2 x 5 1/2 Square Envelopes, 50/Box, Black Linen (8515-BLI-50)~#|#~m000081473_sc7
Item: 282104
Model: 8515-BLI-50
No reviews yet
Price is $42.09
Unit of measure 50/Pack
Free delivery by Fri, May 08
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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.