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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 $159.79
Unit of measure 500/Box
Free delivery by Wed, Feb 18
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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 Mon, Feb 16
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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 $108.94
Unit of measure 500/Pack
Free delivery by Mon, Feb 16
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LUX Moistenable Glue A6 Invitation Envelope, 4 3/4" x 6 1/2", White, 1000/Pack (39892-MI-1M)~#|#~m004064012_sc7
Item: 2146361
Model: 39892-MI-1M
No reviews yet
Price is $225.49
Unit of measure 1000/Pack
Free delivery by Wed, Feb 18
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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 $102.66
Unit of measure 500/Pack
Free delivery by Mon, Feb 16
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LUX 9 x 9 Square Envelopes, 50/Box, Gold Metallic (8585-07-50)~#|#~m003307874_sc7
Item: 1985307
Model: 8585-07-50
No reviews yet
Price is $68.29
Unit of measure 50/Box
Free delivery by Wed, Feb 18
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LUX 6 1/4 x 6 1/4 Square Envelopes, 50/Box, Gold Metallic (8530-07-50)~#|#~m003307879_sc7
Item: 1985255
Model: 8530-07-50
No reviews yet
Price is $29.69
Unit of measure 50/Box
Delivery by Wed, Feb 18
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Crystal Metallic (5380-30-250)~#|#~m005902319_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Crystal Metallic (5380-30-250)~#|#~m000082019_sc7
Item: 514901
Model: 5380-30-250
No reviews yet
Price is $107.99
Free delivery by Wed, Feb 18
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JAM Paper 6.5" x 6.5" Square Translucent Vellum Invitation Envelopes, Purple, 25/Pack (2812713)~#|#~sp74308907_sc7JAM Paper 6.5" x 6.5" Square Translucent Vellum Invitation Envelopes, Purple, 25/Pack (2812713)~#|#~sp74308931_sc7
Item: 38102
Model: 2812713
No reviews yet
Price is $35.19
Unit of measure 25/Pack
Free delivery by Mon, Feb 16
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JAM Paper A8 Strathmore Invitation Envelopes, 5.5 x 8.125, Natural White Wove, Bulk 1000/Carton (191205B)~#|#~m007159177_sc7JAM Paper A8 Strathmore Invitation Envelopes, 5.5 x 8.125, Natural White Wove, Bulk 1000/Carton (191205B)~#|#~m007159176_sc7
Item: 262647
Model: 191205B
No reviews yet
Price is $272.99
Unit of measure 1000/Carton
Free delivery by Mon, Feb 16
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LUX 6 1/2 x 6 1/2 Square Envelopes, 500/Box, Mandarin (EX8535-11-500)~#|#~m000081577_sc7
Item: 387318
Model: EX8535-11-500
No reviews yet
Price is $175.82
Unit of measure 500/Box
Free delivery by Wed, Feb 18
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 500/Box, White Linen (4872-WLI-500)~#|#~m000211237_sc7
Item: 516195
Model: 4872-WLI-500
No reviews yet
Price is $111.68
Free delivery by Wed, Feb 18
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JAM Paper A6 Translucent Vellum Invitation Envelopes, 4.75 x 6.5, Primary Blue, 50/Pack (PACV657I)~#|#~m003905187_sc7JAM Paper A6 Translucent Vellum Invitation Envelopes, 4.75 x 6.5, Primary Blue, 50/Pack (PACV657I)~#|#~m003905184_sc7
Item: 1588871
Model: PACV657I
No reviews yet
Price is $39.99
Unit of measure 50/Pack
Free delivery by Mon, Feb 16
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LUX 80lbs. 5" x 5" Square Envelopes W/Peel & Press, Vintage Plum Purple, 250/BX~#|#~m000081534_sc7
Item: 388731
Model: LUX-8505-104-25
No reviews yet
Price is $53.89
Unit of measure 250/Box
Free delivery by Wed, Feb 18
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LUX A7 Foil Lined Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Navy w/Gold LUX Lining (FLNV4880-04-250)~#|#~m000082057_sc7
Item: 387896
Model: FLNV4880-04-250
No reviews yet
Price is $113.19
Unit of measure 250/Box
Free delivery by Wed, Feb 18
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Wisteria (LUX-4870-106-50)~#|#~m000081844_sc7
Item: 282529
Model: LUX-4870-106-50
No reviews yet
Price is $24.39
Unit of measure 50/Pack
Delivery by Wed, Feb 18
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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 $125.79
Free delivery by Wed, Feb 18
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LUX 4 1/8" x 9 1/2" #10 80lbs. Open End Envelopes, Wisteria Purple, 50/Pack~#|#~m000081288_sc7
Item: 281899
Model: LUX-7716-106-50
No reviews yet
Price is $49.17
Unit of measure 50/Pack
Free delivery by Wed, Feb 18
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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 $25.49
Unit of measure 50/Pack
Delivery by Wed, Feb 18
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JAM Paper A6 Foil Lined Invitation Envelopes, 4.75 x 6.5, White with Red Foil, 25/Pack (3243655)~#|#~m005223351_sc7JAM Paper A6 Foil Lined Invitation Envelopes, 4.75 x 6.5, White with Red Foil, 25/Pack (3243655)~#|#~m005223350_sc7
Item: 262757
Model: 3243655
No reviews yet
Price is $14.29
Unit of measure 25/Pack
Delivery by Mon, Feb 16
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Candy Pink (EX4880-14-250)~#|#~m000082014_sc7
Item: 386630
Model: EX4880-14-250
No reviews yet
Price is $102.59
Unit of measure 250/Box
Free delivery by Wed, Feb 18
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, Aquamarine Metallic (5365-02-500)~#|#~m000081684_sc7
Item: 515908
Model: 5365-02-500
No reviews yet
Price is $110.89
Free delivery by Wed, Feb 18
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80 lb 6 1/4" x 6 1/4" Peel & Press Square Linen Envelopes, White, 250/Box~#|#~m001149702_sc7
Item: 1030000
Model: 8530-WLI-250
Price is $124.49
Free delivery by Wed, Feb 18
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JAM Paper Kraft A8 Invitation Envelopes, 5.5 x 8.125, Brown Kraft Paper Bag, Bulk 250/Box (LEKR750H)~#|#~sp132864566_sc7JAM Paper Kraft A8 Invitation Envelopes, 5.5 x 8.125, Brown Kraft Paper Bag, Bulk 250/Box (LEKR750H)~#|#~sp132864565_sc7
Item: 1589945
Model: LEKR750H
No reviews yet
Price is $89.99
Unit of measure 250/Box
Free delivery by Mon, Feb 16
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JAM Paper Self Seal Invitation Envelopes, 5 1/4" x 5 1/4", Midnight Black, 500/Pack (LUX-8510-B-500)~#|#~sp225303079_sc7JAM Paper Self Seal Invitation Envelopes, 5 1/4" x 5 1/4", Midnight Black, 500/Pack (LUX-8510-B-500)~#|#~sp225303078_sc7
Item: 24578450
Model: LUX-8510-B-500
No reviews yet
Price is $99.99
Unit of measure 500/Pack
Free delivery by Mon, Feb 16
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JAM Paper A9 Foil Lined Invitation Envelopes, 5.75 x 8.75, White with Red Foil, Bulk 250/Box (76798H)~#|#~m003904630_sc7JAM Paper A9 Foil Lined Invitation Envelopes, 5.75 x 8.75, White with Red Foil, Bulk 250/Box (76798H)~#|#~m003904629_sc7
Item: 1590018
Model: 76798H
No reviews yet
Price is $136.19
Unit of measure 250/Box
Free delivery by Mon, Feb 16
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JAM Paper 4Bar A1 Colored Invitation Envelopes, 3.625 x 5.125, Green Recycled, 50/Pack (15811I)~#|#~m003904521_sc7JAM Paper 4Bar A1 Colored Invitation Envelopes, 3.625 x 5.125, Green Recycled, 50/Pack (15811I)~#|#~m003904520_sc7
Item: 1588768
Model: 15811I
No reviews yet
Price is $17.99
Unit of measure 50/Pack
Delivery by Mon, Feb 16
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JAM Paper A8 Metallic Invitation Envelopes, 5.5 x 8.125, Stardream Silver, Bulk 250/Box (V018294H)~#|#~m004672487_sc7JAM Paper A8 Metallic Invitation Envelopes, 5.5 x 8.125, Stardream Silver, Bulk 250/Box (V018294H)~#|#~m004672486_sc7
Item: 1589929
Model: V018294H
No reviews yet
Price is $283.99
Unit of measure 250/Box
Free delivery by Mon, Feb 16
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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 $146.32
Unit of measure 1000/Box
Free delivery by Wed, Feb 18
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Seafoam (LUX-4880-113-50)~#|#~m005902348_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Seafoam (LUX-4880-113-50)~#|#~m005823969_sc7
Item: 282822
Model: LUX-4880-113-50
Price is $26.09
Unit of measure 50/Pack
Delivery by Wed, Feb 18
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 250/Box, Grocery Bag (4875-GB-250)~#|#~m000081918_sc7
Item: 384777
Model: 4875-GB-250
No reviews yet
Price is $74.09
Unit of measure 250/Box
Free delivery by Wed, Feb 18
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 9.25 x 12.25, Clear, 100/Pack (9.25X12.25CELLOB)~#|#~m001367397_sc7
Item: 262936
Model: 9.2512.25CELLOB
Price is $520.99
Unit of measure 1000/Carton
Free delivery by Mon, Feb 16
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LUX 80lb 6"x9 1/2" Square Flap Envelopes W/Peel&Press, Bright White, 500/BX~#|#~m000211248_sc7
Item: 513953
Model: FE4590-05-500
No reviews yet
Price is $198.39
Free delivery by Wed, Feb 18
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JAM Paper A10 Translucent Vellum Invitation Envelopes, 6 x 9.5, Racing Green, 50/Pack (PACV863I)~#|#~m002169067_sc7
Item: 1588745
Model: PACV863I
No reviews yet
Price is $58.99
Unit of measure 50/Pack
Free delivery by Mon, Feb 16
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LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 500/Box, White w/Silver LUX Lining (FLWH4872-03-500)~#|#~m000081884_sc7
Item: 513830
Model: FLWH4872-03-500
No reviews yet
Price is $124.89
Free delivery by Wed, Feb 18
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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 Mon, Feb 16
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LUX A2 (4 3/8 x 5 3/4) 250/Box, White w/Silver LUX Lining (FLWH4870-03-250)~#|#~m000081842_sc7
Item: 387913
Model: FLWH4870-03-250
No reviews yet
Price is $111.89
Unit of measure 250/Box
Free delivery by Wed, Feb 18
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LUX 6 1/4 x 6 1/4 Square Envelopes, 1000/Box, Gold Metallic (8530-07-1M)~#|#~m003307879_sc7
Item: 1985301
Model: 8530-07-1M
No reviews yet
Price is $295.04
Unit of measure 1000/Box
Free delivery by Wed, Feb 18
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JAM Paper 5 x 5 Square Translucent Vellum Invitation Envelopes, Clear, 50/Pack (31032I)~#|#~m006965543_sc7JAM Paper 5 x 5 Square Translucent Vellum Invitation Envelopes, Clear, 50/Pack (31032I)~#|#~m006965542_sc7
Item: 1589078
Model: 31032I
No reviews yet
Price is $49.99
Unit of measure 50/Pack
Free delivery by Mon, Feb 16
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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 $48.31
Unit of measure 250/Pack
Free delivery by Mon, Feb 16
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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.