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 $36.29
Unit of measure 50/Box
Free delivery by Fri, May 08
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JAM Paper 6 x 6 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, 25/Pack (PACV514)~#|#~m006948422_sc7JAM Paper 6 x 6 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, 25/Pack (PACV514)~#|#~m006948421_sc7
Item: 262290
Model: PACV514
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Wed, May 06
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Pool (LUX-4875-102-50)~#|#~m000081944_sc7
Item: 282649
Model: LUX-4875-102-50
No reviews yet
Price is $14.95
Unit of measure 50/Pack
Delivery by Fri, May 08
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JAM Paper 5 x 6.125 Booklet Foil Envelopes with Self-Adhesive Closure, Gold, 25/Pack (1323266)~#|#~m000067464_sc7
Item: 260883
Model: 1323266
Price is $35.69
Unit of measure 25/Pack
Free delivery by Wed, May 06
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JAM Paper 6 x 6 Square Colored Invitation Envelopes, Green Recycled, Bulk 250/Box (2792267H)~#|#~m003904795_sc7JAM Paper 6 x 6 Square Colored Invitation Envelopes, Green Recycled, Bulk 250/Box (2792267H)~#|#~m003904794_sc7
Item: 1589779
Model: 2792267H
No reviews yet
Price is $236.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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80 lb 5 3/4" x 5 3/4" Peel & Press Square Linen Envelopes, White, 250/Box~#|#~m001149702_sc7
Item: 1028576
Model: 8520-WLI-250
No reviews yet
Price is $77.79
Free delivery by Fri, May 08
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JAM Paper A8 Parchment Invitation Envelopes, 5.5 x 8.125, Blue Recycled, 50/Pack (10411I)~#|#~m003904493_sc7JAM Paper A8 Parchment Invitation Envelopes, 5.5 x 8.125, Blue Recycled, 50/Pack (10411I)~#|#~m003904492_sc7
Item: 1589185
Model: 10411I
No reviews yet
Price is $18.89
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX Self Seal Square Envelope, 8" x 8", Gold Metallic, 50/Box (8565-07-50)~#|#~m003307874_sc7
Item: 1985073
Model: 8565-07-50
No reviews yet
Price is $29.49
Unit of measure 50/Box
Delivery by Fri, May 08
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JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Red Recycled, Bulk 1000/Carton (356730541C)~#|#~m003757864_sc7JAM Paper #3 Coin Business Colored Envelopes, 2.5 x 4.25, Red Recycled, Bulk 1000/Carton (356730541C)~#|#~m003562843_sc7
Item: 2103459
Model: 356730541C
No reviews yet
Price is $271.49
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, Bronze Metallic (5365-12-500)~#|#~m000081692_sc7
Item: 515852
Model: 5365-12-500
No reviews yet
Price is $113.69
Free delivery by Fri, May 08
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LUX 9 x 12 Booklet Envelopes 50/Pack, Crystal Clear (CC9X12-50)~#|#~sp14807543_sc7
Item: 24261196
Model: CC9X12-50
No reviews yet
Price is $34.29
Unit of measure 50/Pack
Delivery by Fri, May 08
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JAM Paper 7.5 x 7.5 Square Invitation Envelopes, Dark Purple, 25/Pack (263919267)~#|#~sp4808544_sc7JAM Paper 7.5 x 7.5 Square Invitation Envelopes, Dark Purple, 25/Pack (263919267)~#|#~sp4808543_sc7
Item: 2632982
Model: 263919267
No reviews yet
Price is $35.59
Unit of measure 25/Pack
Free delivery by Wed, May 06
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JAM Paper 4Bar A1 Parchment Invitation Envelopes, 3.625 x 5.125, White Recycled, 50/Pack (900926656I)~#|#~m002168862_sc7
Item: 1588631
Model: 900926656I
Price is $18.89
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX 70lbs. 4 1/8" x 9 1/2" #10 Open End Envelopes W/Glue, Avocado Green, 250/BX~#|#~m000081265_sc7
Item: 386993
Model: EX7716-27-250
No reviews yet
Price is $120.69
Unit of measure 250/Box
Free delivery by Fri, May 08
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JAM Paper Square Envelopes, Peel & Press, 60lb Blush Pink, 6 1/4 x 6 1/4, 50 Pack, (8530-114-50)~#|#~sp228873559_sc7
Item: 24578549
Model: 8530-114-50
No reviews yet
Price is $13.19
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 250/Pack, Grocery Bag (LUX-4885-GB-250)~#|#~sp12274947_sc7LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 250/Pack, Grocery Bag (LUX-4885-GB-250)~#|#~sp12275053_sc7
Item: 24161843
Model: LUX-4885-GB-250
No reviews yet
Price is $54.19
Unit of measure 250/Pack
Free delivery by Fri, May 08
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JAM Paper A8 Colored Invitation Envelopes, 5.5 x 8.125, Red Recycled, 50/Pack (27799I)~#|#~sp132864447_sc7JAM Paper A8 Colored Invitation Envelopes, 5.5 x 8.125, Red Recycled, 50/Pack (27799I)~#|#~sp132864446_sc7
Item: 1589210
Model: 27799I
No reviews yet
Price is $24.49
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX 5 1/2 x 5 1/2 Square Envelopes, 250/Box, Holiday Red (8515-15-250)~#|#~m000081484_sc7
Item: 385719
Model: 8515-15-250
No reviews yet
Price is $49.29
Unit of measure 250/Box
Free delivery by Fri, May 08
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JAM Paper 4Bar A1 Translucent Vellum Envelopes, 3.625 x 5.125, Platinum Silver, 25/Pack (1591590)~#|#~m004671927_sc7JAM Paper 4Bar A1 Translucent Vellum Envelopes, 3.625 x 5.125, Platinum Silver, 25/Pack (1591590)~#|#~m004671926_sc7
Item: 262262
Model: 1591590
No reviews yet
Price is $36.49
Unit of measure 25/Pack
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, 50/Pack (8510-22-50)~#|#~sp225303073_sc7JAM Paper Self Seal Invitation Envelopes, 5 1/4" x 5 1/4", Smoke Gray, 50/Pack (8510-22-50)~#|#~sp225303072_sc7
Item: 24578445
Model: 8510-22-50
No reviews yet
Price is $12.29
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Dark Purple, 25/Pack (563912527)~#|#~m003905007_sc7JAM Paper 8.5 x 8.5 Square Invitation Envelopes, Dark Purple, 25/Pack (563912527)~#|#~m003905006_sc7
Item: 261631
Model: 563912527
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 Colored Invitation Envelopes, Green Recycled, 50/Pack (2792279I)~#|#~m003904797_sc7JAM Paper 6.5 x 6.5 Square Colored Invitation Envelopes, Green Recycled, 50/Pack (2792279I)~#|#~m003904796_sc7
Item: 1588436
Model: 2792279I
No reviews yet
Price is $54.99
Unit of measure 50/Pack
Free delivery by Wed, May 06
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Holiday Green (FE4265-12-50)~#|#~m000081709_sc7
Item: 282371
Model: FE4265-12-50
No reviews yet
Price is $11.99
Unit of measure 50/Pack
Delivery by Fri, May 08
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Custom Catalog Envelopes~#|#~s0521811_sc7
Item: 335627
Model: VISTA1625
No reviews yet
Price is $118.99
Unit of measure 10/Each
Free delivery 
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LUX 6.5" x 9.5" Open End Envelopes 500/Pack, Grocery Bag (LUX-1645-GB-500)~#|#~sp5822112_sc7LUX 6.5" x 9.5" Open End Envelopes 500/Pack, Grocery Bag (LUX-1645-GB-500)~#|#~A807ADEE-F355-48F6-929338B581F12426_sc7
Item: 23996431
Model: LUX-1645-GB-500
No reviews yet
Price is $118.59
Unit of measure 500/Pack
Free delivery by Fri, May 08
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JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Silver, Bulk 250/Box (GCST609H)~#|#~m004672431_sc7JAM Paper A2 Metallic Invitation Envelopes, 4.375 x 5.75, Stardream Silver, Bulk 250/Box (GCST609H)~#|#~m004672430_sc7
Item: 1589275
Model: GCST609H
No reviews yet
Price is $220.49
Unit of measure 250/Box
Free delivery by Wed, May 06
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JAM Paper Kraft Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Brown Kraft Paper Bag, 500/Pack (6314842H)~#|#~sp74308924_sc7JAM Paper Kraft Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Brown Kraft Paper Bag, 500/Pack (6314842H)~#|#~sp74308921_sc7
Item: 1589710
Model: 6314842H
No reviews yet
Price is $189.49
Unit of measure 500/Box
Free delivery by Wed, May 06
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JAM Paper 6 x 6 Square Metallic Invitation Envelopes, Stardream Gold, 25/Pack (GCST510)~#|#~m003905126_sc7JAM Paper 6 x 6 Square Metallic Invitation Envelopes, Stardream Gold, 25/Pack (GCST510)~#|#~m003905125_sc7
Item: 261975
Model: GCST510
No reviews yet
Price is $38.99
Unit of measure 25/Pack
Free delivery by Wed, May 06
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LUX 5 1/2 x 5 1/2 Square Envelopes, 500/Box, White - 100% Recycled (8515-WPC-500)~#|#~m000081504_sc7
Item: 514796
Model: 8515-WPC-500
No reviews yet
Price is $118.69
Free delivery by Fri, May 08
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JAM Paper 10 x 13 Open End Foil Envelopes with Self-Adhesive Closure, Silver, 100/Pack (01323296B)~#|#~m004671914_sc7JAM Paper 10 x 13 Open End Foil Envelopes with Self-Adhesive Closure, Silver, 100/Pack (01323296B)~#|#~m004671913_sc7
Item: 260976
Model: 01323296B
No reviews yet
Price is $158.99
Unit of measure 100/Box
Free delivery by Wed, May 06
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Teal (EX4865-25-50)~#|#~m000081742_sc7
Item: 282406
Model: EX4865-25-50
Price is $14.69
Unit of measure 50/Pack
Delivery by Fri, May 08
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JAM Paper Self Seal #5 1/2 Coin Business Envelopes, 3 1/8" x 5 1/2", Red, 50/Pack (174147509I)~#|#~A2E04501-84E4-4E24-A6D31D1402AE7CAA_sc7
Item: 24557920
Model: 174147509I
No reviews yet
Price is $24.99
Unit of measure 50/Pack
Delivery by Wed, May 06
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Quality Park Clasp Catalog Envelope, 9 1/2" x 12 1/2", Brown, 100/Box (37893)~#|#~s0171274_sc7Quality Park Clasp Catalog Envelope, 9 1/2" x 12 1/2", Brown, 100/Box (37893)~#|#~s0375273_sc7
Item: QUA37893
Model: QUA37893
Price is $110.09
Unit of measure Box
Free delivery by Mon, May 04
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JAM Paper #7 1/2 Booklet Envelope, 10 1/2" x 7 1/2", White, 1000/Carton (4246B)~#|#~sp112110472_sc7JAM Paper #7 1/2 Booklet Envelope, 10 1/2" x 7 1/2", White, 1000/Carton (4246B)~#|#~sp112110461_sc7
Item: 366445
Model: 4246B
No reviews yet
Price is $206.59
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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LUX Self Seal Window Envelope, 6" x 9", Bright White, 250/Pack (FFW-69-250)~#|#~sp14807375_sc7
Item: 24260401
Model: FFW-69-250
No reviews yet
Price is $79.89
Unit of measure 250/Pack
Free delivery by Fri, May 08
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 500/Box, Avocado (EX4865-27-500)~#|#~m000081685_sc7
Item: 514462
Model: EX4865-27-500
No reviews yet
Price is $91.29
Free delivery by Fri, May 08
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LUX 6 1/2 x 6 1/2 Foil Lined Square Envelopes, 1000/Box, White w/Red LUX Lining (FLWH8535-011000)~#|#~m000081599_sc7
Item: 517224
Model: FLWH8535-011000
No reviews yet
Price is $205.69
Free delivery by Fri, May 08
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JAM Paper 8.5 x 8.5 Square Metallic Invitation Envelopes, Stardream Silver, Bulk 250/Box (V018318H)~#|#~m004672495_sc7JAM Paper 8.5 x 8.5 Square Metallic Invitation Envelopes, Stardream Silver, Bulk 250/Box (V018318H)~#|#~m004672494_sc7
Item: 1589819
Model: V018318H
No reviews yet
Price is $471.99
Unit of measure 250/Box
Free delivery by Wed, May 06
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LUX 80lbs. 4 3/4" x 6 1/2" A6 Invitation Envelopes W/Peel & Press, Pool Blue, 250/BX~#|#~m000081944_sc7
Item: 388630
Model: LUX-4875-102-25
No reviews yet
Price is $115.09
Unit of measure 250/Box
Free delivery by Fri, May 08
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JAM Paper Cellophane Envelope with Peel & Seal Closure, 16.4375 x 20.125, Clear, 1000/Carton (16.520125CELLOB)~#|#~m000068422_sc7
Item: 262940
Model: 16.520125CELLOB
No reviews yet
Price is $1,141.99
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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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.