LUX 7 x 7 Square Envelopes, 50/Box, Pool (LUX-8545-102-50)~#|#~m000081637_sc7
Item: 282286
Model: LUX-8545-102-50
Price is $21.99
Unit of measure 50/Pack
Delivery by Fri, May 08
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 8.9375 x 11.25, Peach, 100/Pack (2783725)~#|#~m000969585_sc7
Item: 235576
Model: 2783725
No reviews yet
Price is $91.89
Unit of measure 100/Pack
Free delivery by Wed, May 06
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LUX 80lbs. 4 3/8" x 5 3/4" A2 RSVP, Invitation Envelopes W/Peel & Press, Vintage Plum Purple, 250BX~#|#~m000081836_sc7
Item: 388567
Model: LUX-4870-104-25
No reviews yet
Price is $60.19
Unit of measure 250/Box
Free delivery by Fri, May 08
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Taupe Metallic (5375-M09-50)~#|#~m004063752_sc7
Item: 2146007
Model: 5375-M09-50
No reviews yet
Price is $27.49
Unit of measure 50/Pack
Delivery by Fri, May 08
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 10.0625 x 10.0625, Clear, 100/Pack (10X10CELLO)~#|#~m000068414_sc7
Item: 262892
Model: 10X10CELLO
No reviews yet
Price is $71.49
Unit of measure 100/Pack
Free delivery by Wed, May 06
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Flame Metallic (5380-26-50)~#|#~m005902317_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Flame Metallic (5380-26-50)~#|#~m005823948_sc7
Item: 282758
Model: 5380-26-50
Price is $41.89
Unit of measure 50/Pack
Free delivery by Fri, May 08
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LUX 9 x 9 Square Envelopes, 500/Box, Midnight Black (F-8585-B-500)~#|#~m000081489_sc7
Item: 387547
Model: F-8585-B-500
No reviews yet
Price is $256.19
Unit of measure 500/Box
Free delivery by Fri, May 08
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LUX 70lbs. 4 1/8" x 9 1/2" #10 Open End Envelopes, Baby Blue, 500/BX~#|#~m000081266_sc7
Item: 386933
Model: EX7716-13-500
No reviews yet
Price is $204.69
Unit of measure 500/Box
Free delivery by Fri, May 08
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Quality Park 18" x 23" Tyvek® Jumbo Catalog Envelopes, 25/Box~#|#~s0288247_sc7
Item: QUAR5121
Model: QUAR5121
No reviews yet
Price is $187.09
Unit of measure Box
Free delivery by Mon, May 04
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LUX 8 1/2 x 8 1/2 Square Envelopes, 50/Box, Silver Metallic (8575-06-50)~#|#~m003307876_sc7
Item: 1985070
Model: 8575-06-50
No reviews yet
Price is $34.99
Unit of measure 50/Box
Delivery by Fri, May 08
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JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Clear, 25/Pack (74354)~#|#~sp137084242_sc7
Item: 262125
Model: 74354
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Wed, May 06
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JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Spring Ochre Ivory, 50/Pack (PACV520I)~#|#~m006965553_sc7JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Spring Ochre Ivory, 50/Pack (PACV520I)~#|#~m006965552_sc7
Item: 1588400
Model: PACV520I
No reviews yet
Price is $63.99
Unit of measure 50/Pack
Free delivery by Wed, May 06
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Limelight (LUX-4870-101-50)~#|#~m000081798_sc7
Item: 282472
Model: LUX-4870-101-50
No reviews yet
Price is $13.95
Unit of measure 50/Pack
Delivery by Fri, May 08
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 250/Box, Holiday Green (67211-250)~#|#~m000081752_sc7
Item: 385626
Model: 67211-250
No reviews yet
Price is $52.09
Unit of measure 250/Box
Free delivery by Fri, May 08
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JAM Paper 6.5 x 6.5 Square Colored Invitation Envelopes, Green Recycled, 100/Pack (02792279B)~#|#~m003904797_sc7JAM Paper 6.5 x 6.5 Square Colored Invitation Envelopes, Green Recycled, 100/Pack (02792279B)~#|#~m003904796_sc7
Item: 235630
Model: 02792279B
No reviews yet
Price is $64.99
Unit of measure 100/Box
Free delivery by Wed, May 06
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LUX 5 1/2 x 5 1/2 Square Envelopes, 1000/Box, Natural - 100% Recycled (8515-NPC-1000)~#|#~m000081490_sc7
Item: 514812
Model: 8515-NPC-1000
No reviews yet
Price is $185.09
Free delivery by Fri, May 08
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JAM Paper 8.5 x 8.5 Square Colored Invitation Envelopes, Green Recycled, Bulk 250/Box (2792295H)~#|#~m003904799_sc7JAM Paper 8.5 x 8.5 Square Colored Invitation Envelopes, Green Recycled, Bulk 250/Box (2792295H)~#|#~m003904798_sc7
Item: 1589778
Model: 2792295H
No reviews yet
Price is $236.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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LUX 70lbs. 5 3/4" x 8 3/4" A9 Invitation Envelopes W/Glue, Natural, 1000/BX~#|#~m000082171_sc7
Item: 385428
Model: 5895-01-1000
No reviews yet
Price is $128.59
Unit of measure 1000/Box
Free delivery by Fri, May 08
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JAM Paper 6.5" x 6.5" Square Translucent Vellum Invitation Envelopes, Racing Green, 25/Pack (1592125)~#|#~m000068865_sc7
Item: 38079
Model: 1592125
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Wed, May 06
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JAM Paper 6.5 x 6.5 Square Metallic Invitation Envelopes, Stardream Silver, Bulk 1000/Carton (GCST509B)~#|#~m004672426_sc7JAM Paper 6.5 x 6.5 Square Metallic Invitation Envelopes, Stardream Silver, Bulk 1000/Carton (GCST509B)~#|#~m004672425_sc7
Item: 262073
Model: GCST509B
No reviews yet
Price is $1,065.99
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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LUX 5 1/2 x 5 1/2 Square Envelopes, 1000/Box, White - 100% Recycled (8515-WPC-1000)~#|#~m000081504_sc7
Item: 514798
Model: 8515-WPC-1000
No reviews yet
Price is $187.49
Free delivery by Fri, May 08
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LUX 80lbs. 4 1/8" x 9 1/2" #10 Business Envelopes W/Peel & Press, Smoke Gray, 1000/BX~#|#~m004940462_sc7LUX 80lbs. 4 1/8" x 9 1/2" #10 Business Envelopes W/Peel & Press, Smoke Gray, 1000/BX~#|#~m005824005_sc7
Item: 386341
Model: EX4860-22-1000
No reviews yet
Price is $165.49
Unit of measure 1000/Box
Free delivery by Fri, May 08
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 250/Box, Taupe Metallic (4872-M09-250)~#|#~m004063752_sc7
Item: 2146010
Model: 4872-M09-250
No reviews yet
Price is $66.49
Unit of measure 250/Pack
Free delivery by Fri, May 08
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JAM Paper 5.5 x 5.5 Square Translucent Vellum Invitation Envelopes, Clear, 50/Pack (74354I)~#|#~sp137084242_sc7
Item: 1589077
Model: 74354I
No reviews yet
Price is $51.79
Unit of measure 50/Pack
Free delivery by Wed, May 06
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LUX 9" x 9" Square Envelopes, Gold Metallic, 1000/PK (8585-07-1M)~#|#~m003307874_sc7
Item: 1985037
Model: 8585-07-1M
No reviews yet
Price is $335.09
Unit of measure 1000/Box
Free delivery by Fri, May 08
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JAM Paper A10 Strathmore Invitation Envelopes, 6 x 9.5, Bright White Wove, Bulk 1000/Carton (191220B)~#|#~m007159183_sc7JAM Paper A10 Strathmore Invitation Envelopes, 6 x 9.5, Bright White Wove, Bulk 1000/Carton (191220B)~#|#~m007159182_sc7
Item: 262629
Model: 191220B
No reviews yet
Price is $377.49
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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JAM Paper 4Bar A1 Colored Invitation Envelopes, 3.625 x 5.125, Ultra Lime Green, 50/Pack (155438I)~#|#~sp131391071_sc7JAM Paper 4Bar A1 Colored Invitation Envelopes, 3.625 x 5.125, Ultra Lime Green, 50/Pack (155438I)~#|#~sp131391070_sc7
Item: 1588710
Model: 155438I
No reviews yet
Price is $15.59
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) 500/Box, Copper Metallic (5365-11-500)~#|#~m000081698_sc7
Item: 515853
Model: 5365-11-500
No reviews yet
Price is $120.79
Free delivery by Fri, May 08
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LUX 5 x 5 Square Envelopes, 250/Box, White Linen (8505-WLI-250)~#|#~m000081536_sc7
Item: 514827
Model: 8505-WLI-250
No reviews yet
Price is $88.29
Free delivery by Fri, May 08
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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 Fri, May 08
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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, May 06
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LUX 9 x 12 Booklet Envelopes 50/Pack, Wasabi (LUX-4899-L22-50)~#|#~sp14807540_sc7
Item: 24260804
Model: LUX-4899-L22-50
No reviews yet
Price is $34.29
Unit of measure 50/Pack
Delivery by Fri, May 08
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JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Black Linen, Bulk 250/Box (900906807H)~#|#~m003904584_sc7JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Black Linen, Bulk 250/Box (900906807H)~#|#~m003904583_sc7
Item: 1590024
Model: 900906807H
Price is $225.49
Unit of measure 250/Box
Free delivery by Wed, May 06
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LUX A6 Foil Lined Invitation Envelopes (4 3/4 x 6 1/2) 500/Box, Natural w/Gold LUX Lining (FLNT4875-04-500)~#|#~m000081933_sc7
Item: 513911
Model: FLNT4875-04-500
No reviews yet
Price is $107.49
Free delivery by Fri, May 08
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JAM Paper A7 Strathmore Invitation Envelopes, 5.25 x 7.25, Natural White Wove, Bulk 1000/Carton (44507B)~#|#~m007159137_sc7JAM Paper A7 Strathmore Invitation Envelopes, 5.25 x 7.25, Natural White Wove, Bulk 1000/Carton (44507B)~#|#~m007159136_sc7
Item: 262646
Model: 44507B
No reviews yet
Price is $277.49
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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JAM Paper A8 Strathmore Invitation Envelopes, 5.5 x 8.125, Bright White Wove, Bulk 250/Box (STTW761H)~#|#~m007159240_sc7JAM Paper A8 Strathmore Invitation Envelopes, 5.5 x 8.125, Bright White Wove, Bulk 250/Box (STTW761H)~#|#~m007159124_sc7
Item: 1589920
Model: STTW761H
No reviews yet
Price is $77.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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JAM Paper Self Seal Invitation Envelopes, 5 1/4" x 5 1/4", Smoke Gray, 250/Pack (8510-22-250)~#|#~sp225303139_sc7JAM Paper Self Seal Invitation Envelopes, 5 1/4" x 5 1/4", Smoke Gray, 250/Pack (8510-22-250)~#|#~sp225303138_sc7
Item: 24578291
Model: 8510-22-250
No reviews yet
Price is $43.09
Unit of measure 250/Pack
Free delivery by Wed, May 06
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LUX Double Window Invoice Envelopes (4 1/8 x 9 1/8) 1000/Box, Mandarin (INVDW-11-1M)~#|#~m004063892_sc7
Item: 2147432
Model: INVDW-11-1M
No reviews yet
Price is $198.39
Unit of measure 1000/Pack
Free delivery by Fri, May 08
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LUX 6 x 6 Square Envelopes 50/Pack, Natural White - 100% Cotton (8525-SN-50)~#|#~sp14807605_sc7
Item: 24260719
Model: 8525-SN-50
No reviews yet
Price is $19.59
Unit of measure 50/Pack
Delivery by Fri, May 08
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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
Quality Park Clasp Catalog Envelope, 9" x 12", White, 100/Box (38390) is Out of stock
Item: 507862
Model: QUA38390
Price is $63.49
Unit of measure 100/Box
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.