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Square Envelopes

LUX 5 x 5 Square Envelopes, 50/Box, Vintage Plum (LUX-8505-104-50)~#|#~m000081534_sc7
Item: 282168
Model: LUX-8505-104-50
No reviews yet
Price is $14.19
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX #1 Coin Envelopes (2 1/4 x 3 1/2) 50/Pack, Vintage Plum (LUX-1CO-104-50)~#|#~sp14807670_sc7
Item: 24260512
Model: LUX-1CO-104-50
No reviews yet
Price is $20.89
Unit of measure 50/Pack
Delivery by Wed, May 06
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Quality Park Open End Envelope, Plain, 18 Sub, White, 12" x 16" x 2"~#|#~s0171536_sc7
Item: QUAR4290
Model: QUAR4290
Price is $384.55
Unit of measure Carton
Free Next-Day eligible by tomorrow
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LUX 4 x 4 Square 50/Pack, Navy (8504-103-50)~#|#~sp14807823_sc7
Item: 24261267
Model: 8504-103-50
No reviews yet
Price is $13.49
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX #10 Open End Envelopes (4 1/8 x 9 1/2) 50/Pack, Silver Metallic (7716-06-50)~#|#~sp12274947_sc7LUX #10 Open End Envelopes (4 1/8 x 9 1/2) 50/Pack, Silver Metallic (7716-06-50)~#|#~sp12275008_sc7
Item: 24162063
Model: 7716-06-50
Price is $31.19
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX #1 Coin Envelopes (2-1/4 x 3-1/2) 50/Pack, 80lb. Bright White (1CO-80W-50)~#|#~sp14807624_sc7
Item: 24261173
Model: 1CO-80W-50
No reviews yet
Price is $23.69
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX, 6 x 11 1/2 Open End Envelopes, Bright White~#|#~m001406660_sc7
Item: 1277789
Model: 61112-70W-500
No reviews yet
Price is $212.19
Unit of measure 500/Box
Free delivery by Wed, May 06
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Lux Full Face Window Envelopes, Wasabi 4.12 x 9.5 inch 500/Pack~#|#~m002084637_sc7
Item: 1559273
Model: FFW-10-L22-500
No reviews yet
Price is $139.69
Free delivery by Wed, May 06
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LUX A7 Foil Lined Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Black w/Red LUX Lining (FLBK4880-01-250)~#|#~m000082008_sc7
Item: 387863
Model: FLBK4880-01-250
No reviews yet
Price is $109.39
Unit of measure 250/Box
Free delivery by Wed, May 06
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Gold Metallic (5370-07-50)~#|#~m000081706_sc7
Item: 282455
Model: 5370-07-50
Price is $18.59
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Black, 108/Pack (921B1BLB)~#|#~m005744815_sc7JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Black, 108/Pack (921B1BLB)~#|#~m000067462_sc7
Item: 260881
Model: 921B1BLB
No reviews yet
Price is $211.79
Unit of measure 108/Box
Free delivery by Mon, May 04
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 50/Pack, Ruby Red (LUX-4885-18-50)~#|#~sp12274947_sc7LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 50/Pack, Ruby Red (LUX-4885-18-50)~#|#~sp12275050_sc7
Item: 24161682
Model: LUX-4885-18-50
No reviews yet
Price is $19.99
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX 9" x 12" Open End Envelopes 50/Pack, Limelight (LUX-4894-101-50)~#|#~3A9FAD67-18F3-494A-A8AAE57F40212199_sc7
Item: 24260460
Model: LUX-4894-101-50
No reviews yet
Price is $39.69
Unit of measure 50/Pack
Free delivery by Wed, May 06
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Quality Park Survivor Tyvek Self Seal Catalog Envelope, 10" x 15", White, 100/Carton (QUAR4450)~#|#~m000015900_sc7
Item: 2622379
Model: QUAR4450
No reviews yet
Price is $183.09
Unit of measure 100/Carton
Free Next-Day eligible by tomorrow
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LUX A7 Z-Fold Invitation (5 x 7) 10/Pack, Navy (LUXA7ZF-103-10)~#|#~sp14807949_sc7
Item: 24261021
Model: LUXA7ZF-103-10
No reviews yet
Price is $13.09
Unit of measure 10/Pack
Delivery by Wed, May 06
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LUX 9 x 12 Open End Envelopes 50/Pack, 24lb. Bright White (8193-50)~#|#~59BD81EC-0CA0-4F35-83FA263DA5BA5AB9_sc7
Item: 24260839
Model: 8193-50
No reviews yet
Price is $22.95
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper #6 Coin Envelopes, 3 3/8" x 6", White, 100/Pack (1623184D)~#|#~F32695E4-9A04-45FF-AFC71CF993316173_sc7
Item: 24557945
Model: 1623184D
No reviews yet
Price is $20.49
Unit of measure 100/Pack
Delivery by Mon, May 04
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LUX 11 1/2 x 14 1/2 Kraft Open End Envelopes 500/Pack, 28lb. Brown Kraft (318-500)~#|#~sp14807522_sc7
Item: 24260244
Model: 318-500
No reviews yet
Price is $163.49
Unit of measure 500/Pack
Free delivery by Wed, May 06
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JAM Paper Self Seal Invitation Envelopes, 5 1/4" x 5 1/4", Candy Pink, 500/Pack (8510-14-500)~#|#~sp225303058_sc7JAM Paper Self Seal Invitation Envelopes, 5 1/4" x 5 1/4", Candy Pink, 500/Pack (8510-14-500)~#|#~sp225303057_sc7
Item: 24578437
Model: 8510-14-500
No reviews yet
Price is $79.99
Unit of measure 500/Pack
Free delivery by Mon, May 04
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JAM Paper 4Bar A1 Invitation Envelopes, 3.625 x 5.125, White, 50/Pack (47385H)~#|#~sp111772467_sc7JAM Paper 4Bar A1 Invitation Envelopes, 3.625 x 5.125, White, 50/Pack (47385H)~#|#~sp111772466_sc7
Item: 2329312
Model: 47385H
Price is $13.49
Unit of measure 50/Pack
Delivery by Mon, May 04
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JAM Paper A6 Square Flap Envelopes, Peel & Press, 70lb, 4 3/4 x 6 1/2, Olive Green, 50 Pack (4875-81-50)~#|#~sp228873496_sc7
Item: 24578390
Model: 4875-81-50
No reviews yet
Price is $18.99
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Natural - 100% Recycled (4880-NPC-50)~#|#~m005902297_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Natural - 100% Recycled (4880-NPC-50)~#|#~m005823961_sc7
Item: 282790
Model: 4880-NPC-50
No reviews yet
Price is $27.89
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper #3 Kraft Coin Business Envelopes, 2.5 x 4.25, Brown Kraft Manila, Bulk 1000/Carton (01623989B)~#|#~E1E49265-8CE9-4B3F-8FDBA38C45BA398A_sc7JAM Paper #3 Kraft Coin Business Envelopes, 2.5 x 4.25, Brown Kraft Manila, Bulk 1000/Carton (01623989B)~#|#~sp137084910_sc7
Item: 1227826
Model: 01623989B
No reviews yet
Price is $105.09
Unit of measure 1000/Carton
Free delivery by Mon, May 04
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LUX 70lb 4 1/8"x9 1/2" Square Flap #10 Envelopes, Baby Blue, 250/BX~#|#~m004940457_sc7LUX 70lb 4 1/8"x9 1/2" Square Flap #10 Envelopes, Baby Blue, 250/BX~#|#~m005824016_sc7
Item: 516411
Model: EX4860-13-250
No reviews yet
Price is $58.49
Free delivery by Wed, May 06
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Mandarin (EX4880-11-50)~#|#~m005902327_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Mandarin (EX4880-11-50)~#|#~m005823958_sc7
Item: 282786
Model: EX4880-11-50
Price is $15.59
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Natural, 25/Pack (900926651)~#|#~sp134498373_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Natural, 25/Pack (900926651)~#|#~sp134498372_sc7
Item: 261878
Model: 900926651
Price is $20.49
Unit of measure 25/Pack
Delivery by Mon, May 04
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JAM Paper 4.5 x 4.5 Square Invitation Envelopes, White, 50/Pack (439911145I)~#|#~sp113368812_sc7JAM Paper 4.5 x 4.5 Square Invitation Envelopes, White, 50/Pack (439911145I)~#|#~sp113368811_sc7
Item: 1588514
Model: 439911145I
No reviews yet
Price is $20.49
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX #14 Open End Envelopes (5 x 11 1/2) 50/Box, 28lb. White (WS-5200-50)~#|#~m004063926_sc7
Item: 2146577
Model: WS-5200-50
No reviews yet
Price is $25.69
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX 5 x 5 Square Envelopes, 50/Box, Natural (8505-03-50)~#|#~m000081529_sc7
Item: 282162
Model: 8505-03-50
No reviews yet
Price is $13.99
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Grocery Bag (4880-GB-50)~#|#~m005902295_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Grocery Bag (4880-GB-50)~#|#~m005823951_sc7
Item: 282771
Model: 4880-GB-50
Price is $20.89
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper Strathmore Open End #10 Business Envelope, 4 1/8" x 9 1/2", Ivory Wove, 50/Pack (191165I)~#|#~sp132864373_sc7JAM Paper Strathmore Open End #10 Business Envelope, 4 1/8" x 9 1/2", Ivory Wove, 50/Pack (191165I)~#|#~sp132864372_sc7
Item: 1588692
Model: 191165I
Price is $28.29
Unit of measure 50/Pack
Delivery by Mon, May 04
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JAM Paper Invitation Envelope, 13 1/2" x 13 1/2", White, 250/Box (3992323H)~#|#~sp118566188_sc7JAM Paper Invitation Envelope, 13 1/2" x 13 1/2", White, 250/Box (3992323H)~#|#~sp118566187_sc7
Item: 1589827
Model: 3992323H
No reviews yet
Price is $345.59
Unit of measure 250/Box
Free delivery by Mon, May 04
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Gold Metallic (5375-07-50)~#|#~m000081706_sc7
Item: 282611
Model: 5375-07-50
Price is $19.49
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX #11 Open End Envelopes (4 1/2 x 10 3/8) 50/Pack, 28lb. Bright White (99406-28-50)~#|#~sp5822112_sc7LUX #11 Open End Envelopes (4 1/2 x 10 3/8) 50/Pack, 28lb. Bright White (99406-28-50)~#|#~sp5873902_sc7
Item: 23996642
Model: 99406-28-50
Price is $23.79
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Lime Green, 12/Pack (921B1LI)~#|#~m004857990_sc7JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Lime Green, 12/Pack (921B1LI)~#|#~m004857824_sc7
Item: 235328
Model: 921B1LI
No reviews yet
Price is $28.19
Unit of measure 12/Pack Price per unit $2.35/Envelope
Delivery by Mon, May 04
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JAM Paper Open End Catalog Envelope, 9" x 12", Green, 100/Box (80402)~#|#~sp115351623_sc7JAM Paper Open End Catalog Envelope, 9" x 12", Green, 100/Box (80402)~#|#~sp115351622_sc7
Item: 263933
Model: 80402
No reviews yet
Price is $119.49
Unit of measure 100/Box
Free delivery by Mon, May 04
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LUX A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) 50/Box, Black w/Gold LUX Lining (FLBK4872-04-50)~#|#~m005823917_sc7
Item: 282539
Model: FLBK4872-04-50
No reviews yet
Price is $32.19
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper A7 Invitation Envelope, 5 1/4" x 7 1/4", White, 500/Box (73767D)~#|#~m002934504_sc7JAM Paper A7 Invitation Envelope, 5 1/4" x 7 1/4", White, 500/Box (73767D)~#|#~m002934503_sc7
Item: 2103271
Model: 73767D
Price is $93.79
Unit of measure 500/Box
Free delivery by Mon, May 04
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JAM Paper 9 x 12 Booklet Colored Envelopes, Ultra Lime Green, 25/Pack (5156771)~#|#~m003904883_sc7JAM Paper 9 x 12 Booklet Colored Envelopes, Ultra Lime Green, 25/Pack (5156771)~#|#~m003904882_sc7
Item: 261162
Model: 5156771
Price is $21.59
Unit of measure 25/Pack
Delivery by Mon, May 04
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Quality Park Clasp Kraft Catalog Envelope, 10" x 13", Kraft, 250/Box (37597)~#|#~s0293058_sc7Quality Park Clasp Kraft Catalog Envelope, 10" x 13", Kraft, 250/Box (37597)~#|#~s0171250_sc7
Quality Park Clasp Kraft Catalog Envelope, 10" x 13", Kraft, 250/Box (37597) is Out of stock
Item: 813389
Model: QUA37597
Price is $84.69
Unit of measure 250/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.