JAM Paper 6.25 x 7.875 Open End Foil Envelopes with Self-Adhesive Closure, Silver, 100/Pack (01323303B)~#|#~m004671918_sc7JAM Paper 6.25 x 7.875 Open End Foil Envelopes with Self-Adhesive Closure, Silver, 100/Pack (01323303B)~#|#~m004671917_sc7
Item: 260938
Model: 01323303B
No reviews yet
Price is $108.99
Unit of measure 100/Box
Free delivery by Wed, May 06
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LUX 70 lb 5 3/4" x 8 3/4" A9 Vellum Envelopes, Bright White, 1000/Box~#|#~m000082145_sc7
Item: 1028607
Model: 4895-70W-1000
Price is $160.79
Free delivery by Fri, May 08
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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 $11.79
Unit of measure 50/Pack
Delivery by Fri, May 08
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LUX 6 1/2 x 6 1/2 Square Envelopes, 500/Box, Gold Metallic (8535-07-500)~#|#~m000081570_sc7
Item: 385780
Model: 8535-07-500
No reviews yet
Price is $201.99
Unit of measure 500/Box
Free delivery by Fri, May 08
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JAM Paper Cellophane Envelope with Self-Adhesive Closure, 5.4375 x 8.625, Peach, 100/Pack (2783142)~#|#~m000969571_sc7
Item: 235428
Model: 2783142
No reviews yet
Price is $59.99
Unit of measure 100/Pack
Free delivery by Wed, May 06
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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 Wed, May 06
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LUX #10 (4 1/8" x 9 1/2") Window Envelopes, Grocery Bag Brown, 500/Box~#|#~m000081333_sc7
Item: 384617
Model: 4860-WGB-500
No reviews yet
Price is $101.89
Unit of measure 500/Box
Free delivery by Fri, May 08
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Quality Park Gummed Currency Envelopes, 5 1/2" x 3 1/8", Brown, 500/Box (QUA50562)~#|#~sp46039003_sc7
Quality Park Kraft #5 1/2 Envelope 3 1/8" x 5 1/2", Brown, 500/Box (QUA50562) is New at Staples
Item: QUA50562
Model: QUA50562
Price is $167.39
Unit of measure 500/Box
Free delivery by Mon, May 04
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 250/Box, Sunflower (LUX-4872-12-250)~#|#~m000081877_sc7
Item: 513698
Model: LUX-4872-12-250
Price is $61.59
Free delivery by Fri, May 08
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LUX A2 (4 3/8 x 5 3/4) 50/Box, Quartz Metallic (5370-08-50)~#|#~1FD828E4-721C-4D31-899ED258812C0731_sc7LUX A2 (4 3/8 x 5 3/4) 50/Box, Quartz Metallic (5370-08-50)~#|#~9921AF4E-F2B9-4A4C-B7E9317EB54BF27D_sc7
Item: 282498
Model: 5370-08-50
Price is $18.09
Unit of measure 50/Pack
Delivery by Fri, May 08
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LUX 7" x 7" Square Envelopes with Peel and Press, Gold Metallic, 250/PK (8545-07-250)~#|#~m003307879_sc7
Item: 1985058
Model: 8545-07-250
No reviews yet
Price is $110.59
Unit of measure 250/Box
Free delivery by Fri, May 08
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JAM Paper Kraft A6 Invitation Envelopes, 4.75 x 6.5, Brown Kraft Paper Bag, Bulk 1000/Carton (LEKR650B)~#|#~sp115352003_sc7JAM Paper Kraft A6 Invitation Envelopes, 4.75 x 6.5, Brown Kraft Paper Bag, Bulk 1000/Carton (LEKR650B)~#|#~sp115352002_sc7
Item: 261549
Model: LEKR650B
Price is $287.69
Unit of measure 1000/Carton
Free delivery by Wed, May 06
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JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Primary Yellow, 25/Pack (PACV606)~#|#~m003905183_sc7JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Primary Yellow, 25/Pack (PACV606)~#|#~m003905182_sc7
Item: 262271
Model: PACV606
No reviews yet
Price is $21.99
Unit of measure 25/Pack
Delivery by Wed, May 06
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JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Black Linen, 25/Pack (900906807)~#|#~m003904584_sc7JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Black Linen, 25/Pack (900906807)~#|#~m003904583_sc7
Item: 261572
Model: 900906807
Price is $31.49
Unit of measure 25/Pack
Delivery by Wed, May 06
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JAM Paper 8.5 x 8.5 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, 25/Pack (1592157)~#|#~m006948424_sc7JAM Paper 8.5 x 8.5 Square Translucent Vellum Invitation Envelopes, Wisteria Purple, 25/Pack (1592157)~#|#~m006948423_sc7
Item: 262292
Model: 1592157
No reviews yet
Price is $33.99
Unit of measure 25/Pack
Delivery by Wed, May 06
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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 Wed, May 06
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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 $105.19
Unit of measure 250/Box
Free delivery by Fri, May 08
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JAM Paper #10 Business Foil Envelopes with Self-Adhesive Closure, 4.125 x 9.5, Red, 100/Pack (01323307B)~#|#~m000067476_sc7
Item: 260948
Model: 01323307B
No reviews yet
Price is $127.99
Unit of measure 100/Box
Free delivery by Wed, May 06
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LUX 6 1/2 x 6 1/2 Square Envelopes, 250/Box, Mandarin (EX8535-11-250)~#|#~m000081577_sc7
Item: 387317
Model: EX8535-11-250
No reviews yet
Price is $108.59
Unit of measure 250/Box
Free delivery by Fri, May 08
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LUX Security Tinted A2 Window Envelope, 4 3/8" x 5 3/4", White, 1000/Pack (7486-W2-1000)~#|#~sp14807383_sc7
Item: 24260623
Model: 7486-W2-1000
No reviews yet
Price is $202.49
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, 50/Box, Quartz Metallic (8535-08-50)~#|#~454BF406-1131-46B3-8B6EEFDA28B342B0_sc7LUX 6 1/2 x 6 1/2 Square Envelopes, 50/Box, Quartz Metallic (8535-08-50)~#|#~701D2562-5366-4D41-B4C8286AC8FBD8EF_sc7
Item: 282224
Model: 8535-08-50
No reviews yet
Price is $31.09
Unit of measure 50/Pack
Delivery by Fri, May 08
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JAM Paper Booklet Envelopes with Peel & Seal Closure, 6 x 9, White, 500/Box (367934164)~#|#~sp74203775_sc7JAM Paper Booklet Envelopes with Peel & Seal Closure, 6 x 9, White, 500/Box (367934164)~#|#~sp74204046_sc7
Item: 24295256
Model: 367934164
No reviews yet
Price is $366.59
Unit of measure 500/Pack
Free delivery by Wed, May 06
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LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Magenta (EX4880-10-250)~#|#~m005902326_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 250/Box, Magenta (EX4880-10-250)~#|#~m000082045_sc7
Item: 514289
Model: EX4880-10-250
No reviews yet
Price is $67.89
Free delivery by Fri, May 08
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JAM Paper Self Seal Catalog Envelope, 9" x 12", Orange, 50/Pack (185747509I)~#|#~E1491002-11D6-4110-A0E13D4D3716DCF8_sc7
Item: 24557923
Model: 185747509I
No reviews yet
Price is $45.19
Unit of measure 50/Pack
Free delivery by Wed, May 06
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LUX 5 3/4" x 8 3/4" 60lbs. Square Flap Envelopes W/Peel & Press, White/Silver LUX Lining~#|#~m000082192_sc7
Item: 282958
Model: FLWH4895-03-50
Price is $43.19
Unit of measure 50/Pack
Free delivery by Fri, May 08
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JAM Paper 9 x 12 Booklet Envelopes, Green Recycled, 25/Pack (154124)~#|#~m003904704_sc7JAM Paper 9 x 12 Booklet Envelopes, Green Recycled, 25/Pack (154124)~#|#~m003904703_sc7
Item: 261278
Model: 154124
Price is $21.59
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) 1000/Box, Pastel Green (SH4275-04-1000)~#|#~m000081941_sc7
Item: 388099
Model: SH4275-04-1000
No reviews yet
Price is $100.89
Unit of measure 1000/Box
Free delivery by Fri, May 08
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LUX 5 1/4" x 7 1/4" A7 Invitation Envelopes W/Peel & Press, Pool Blue, 250/BX~#|#~m005902343_sc7LUX 5 1/4" x 7 1/4" A7 Invitation Envelopes W/Peel & Press, Pool Blue, 250/BX~#|#~m005823964_sc7
Item: 388650
Model: LUX-4880-102-25
No reviews yet
Price is $51.39
Unit of measure 250/Box
Free delivery by Fri, May 08
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LUX Kraft Open End #14 Envelopes, 5" x 11 1/2", Brown Kraft, 500/Pack (WS-5248-500)~#|#~69607DB9-EA4E-4C6D-A39DE57E4791F01D_sc7
Item: 2146550
Model: WS-5248-500
No reviews yet
Price is $106.59
Unit of measure 500/Pack
Free delivery by Fri, May 08
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JAM Paper 7 1/2 x 7 1/2 Square Envelopes ,80 lb,50 Pack, Gray (EX8555-22-50)~#|#~sp228873509_sc7
Item: 24578454
Model: EX8555-22-50
No reviews yet
Price is $13.19
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper A2 Colored Invitation Envelopes, 4.375 x 5.75, Green Recycled, 50/Pack (15843I)~#|#~sp121512328_sc7JAM Paper A2 Colored Invitation Envelopes, 4.375 x 5.75, Green Recycled, 50/Pack (15843I)~#|#~sp121512327_sc7
Item: 1589476
Model: 15843I
Price is $20.49
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper Cellophane Envelope with Peel & Seal Closure, 8.9375 x 11.25, Green, 100/Pack (2783699)~#|#~m000969584_sc7
Item: 235501
Model: 2783699
No reviews yet
Price is $94.19
Unit of measure 100/Pack
Free delivery by Wed, May 06
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JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", Blue, 50/Pack (5360-13-50)~#|#~sp228873505_sc7
Item: 24578435
Model: 5360-13-50
Price is $21.79
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper Square Envelopes, Peel & Press, Garnet, 6 x 6, 50 Pack (8525-101-50)~#|#~sp228873527_sc7
Item: 24578466
Model: 8525-101-50
No reviews yet
Price is $13.19
Unit of measure 50/Pack
Delivery by Wed, May 06
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Over 30
LUX 5 1/2 x 5 1/2 Square Envelopes, 50/Box, 70lb. Bright White (10902-50)~#|#~m000081469_sc7
Item: 282100
Model: 10902-50
Price is $26.79
Unit of measure 50/Pack
Delivery by Fri, May 08
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JAM Paper 8.75 x 11.5 Booklet Translucent Vellum Envelopes, Clear, 50/Pack (2851370i)~#|#~sp126919527_sc7JAM Paper 8.75 x 11.5 Booklet Translucent Vellum Envelopes, Clear, 50/Pack (2851370i)~#|#~sp126919526_sc7
Item: 24006070
Model: 2851370I
No reviews yet
Price is $80.99
Unit of measure 50/Pack
Free delivery by Wed, May 06
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LUX 4 1/8" x 9 1/2" #10 70lbs. Open End Envelopes, Avocado Green, 50/Pack~#|#~m000081265_sc7
Item: 281876
Model: EX7716-27-50
No reviews yet
Price is $52.99
Unit of measure 50/Pack
Free delivery by Fri, May 08
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 250/Box, White - 100% Recycled (4872-WPC-250)~#|#~m000211234_sc7
Item: 516196
Model: 4872-WPC-250
No reviews yet
Price is $51.69
Free delivery by Fri, May 08
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JAM Paper A7 Invitation Envelopes, 5.25 x 7.25, Teal, 25/Pack (21517152)~#|#~m003904906_sc7JAM Paper A7 Invitation Envelopes, 5.25 x 7.25, Teal, 25/Pack (21517152)~#|#~m003904905_sc7
JAM Paper A7 Invitation Envelopes, 5.25 x 7.25, Teal, 25/Pack (21517152) is Out of stock
Item: 364010
Model: 21517152
No reviews yet
Price is $14.29
Unit of measure 25/Pack
JAM Paper 9 x 12 Booklet Colored Envelopes, Sea Blue Recycled, Bulk 500/Box (5156773c)~#|#~sp123308251_sc7JAM Paper 9 x 12 Booklet Colored Envelopes, Sea Blue Recycled, Bulk 500/Box (5156773c)~#|#~sp123308250_sc7
JAM Paper 9 x 12 Booklet Colored Envelopes, Sea Blue Recycled, Bulk 500/Box (5156773c) is Out of stock
Item: 24052302
Model: 5156773C
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Price is $288.29
Unit of measure 500/Carton
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.