Square Envelopes

JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, Ecru with Gold Foil, 25/Pack (2354150)~#|#~sp137086610_sc7JAM Paper A7 Foil Lined Invitation Envelopes, 5.25 x 7.25, Ecru with Gold Foil, 25/Pack (2354150)~#|#~sp137086016_sc7
Item: 262761
Model: 2354150
Price is $20.49
Unit of measure 25/Pack
Delivery by Mon, May 04
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LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes W/Glue Closure, Amethyst Metallic Purple~#|#~m004940421_sc7LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes W/Glue Closure, Amethyst Metallic Purple~#|#~m005823899_sc7
Item: 281913
Model: 5360-17-50
Price is $20.39
Unit of measure 50/Pack
Delivery by Wed, May 06
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Quality Park Button & String Inter-Departmental Envelope 10" x 13", Red, 100/Box (QUA63574)~#|#~sp46777715_sc7
Item: 680165
Model: QUA63574
Price is $201.99
Unit of measure 100/Box
Free delivery by Tue, Apr 28
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LUX Moistenable Glue Security Tinted Envelope, 5 3/4" x 8 7/8", White, 250/Pack (7486-W2-250)~#|#~sp14807383_sc7
Item: 24260280
Model: 7486-W2-250
Price is $120.39
Unit of measure 250/Pack
Free delivery by Wed, May 06
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JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Primary Blue, 25/Pack (PACV527)~#|#~m006965545_sc7JAM Paper 6.5 x 6.5 Square Translucent Vellum Invitation Envelopes, Primary Blue, 25/Pack (PACV527)~#|#~m006965544_sc7
Item: 262216
Model: PACV527
No reviews yet
Price is $30.99
Unit of measure 25/Pack
Delivery by Mon, May 04
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LUX A10 Envelope - 24lb. White, Machine Insertable 50/Pack, 24lb. White (A10-24WMI-50)~#|#~sp12274947_sc7LUX A10 Envelope - 24lb. White, Machine Insertable 50/Pack, 24lb. White (A10-24WMI-50)~#|#~sp12275039_sc7
Item: 24161885
Model: A10-24WMI-50
No reviews yet
Price is $13.69
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper A7 Translucent Vellum Invitation Envelopes, 5.25 x 7.25, Clear, 50/Pack (2851295I)~#|#~sp121512008_sc7JAM Paper A7 Translucent Vellum Invitation Envelopes, 5.25 x 7.25, Clear, 50/Pack (2851295I)~#|#~sp121512007_sc7
Item: 1589152
Model: 2851295I
Price is $32.19
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 50/Box, Lilac (SH4275-05-50)~#|#~m000081926_sc7
Item: 282628
Model: SH4275-05-50
No reviews yet
Price is $14.69
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper #10 Business Foil Envelopes with Self-Adhesive Closure, 4.125 x 9.5, Gold, 25/Pack (1323305)~#|#~sp137086460_sc7JAM Paper #10 Business Foil Envelopes with Self-Adhesive Closure, 4.125 x 9.5, Gold, 25/Pack (1323305)~#|#~sp137086019_sc7
Item: 260895
Model: 1323305
No reviews yet
Price is $42.89
Unit of measure 25/Pack
Free delivery by Mon, May 04
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LUX 5 x 5 Square Envelopes 50/Pack, 80lb. Bright White (8505-80W-50)~#|#~sp14807724_sc7
Item: 24260824
Model: 8505-80W-50
Price is $17.49
Unit of measure 50/Pack
Delivery by Wed, May 06
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Partners Brand Tyvek First Class Tyvek Self Seal Catalog Envelope 12" x 16", White/Green, 100/Carton (TYE12162FC)~#|#~6DDEA47E-9D1D-45E6-952F5289810C75DA_sc7
Item: 2301088
Model: TYE12162FC
No reviews yet
Price is $211.49
Unit of measure 100/Carton
Free delivery by Mon, May 04
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Brown, 25/Pack (V01722)~#|#~sp137084310_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Brown, 25/Pack (V01722)~#|#~sp137084266_sc7
Item: 261870
Model: V01722
No reviews yet
Price is $18.69
Unit of measure 25/Pack
Delivery by Mon, May 04
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Quality Park Kraft Button & String Inter-Departmental Envelope 9" x 12", Brown, 100/Box (QUA63462)~#|#~sp41694167_sc7
Item: 377401
Model: QUA63462
Price is $101.89
Unit of measure 100/Box
Free delivery by Wed, Apr 29
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LUX #10 Full Face Window Envelopes (4 1/8 x 9 1/2) 50/Pack, 28lb. Bright White (FFW-10-50)~#|#~sp14807466_sc7
Item: 24260466
Model: FFW-10-50
No reviews yet
Price is $21.59
Unit of measure 50/Pack
Delivery by Wed, May 06
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Lux Double Window Invoice Envelopes, 4 1/8 x 9 1/2, Wasabi 250/Pack~#|#~m002084679_sc7
Item: 1559170
Model: INVDW-L22-250
No reviews yet
Price is $59.29
Free delivery by Wed, May 06
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JAM Paper Square Envelopes, Peel & Press, 100lb Citrus Yellow, 6 1/4 x 6 1/4, 50 Pack, (8530-L20-50)~#|#~sp228873553_sc7
Item: 24578542
Model: 8530-L20-50
No reviews yet
Price is $13.19
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX 9" x 12" Open End Tax Envelopes 50/Pack, 24 lb. Bright White (8193-TAX-50)~#|#~sp20150752_sc7
Item: 24293988
Model: 8193-TAX-50
Price is $51.99
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) 50/Box, Natural Linen (4880-NLI-50)~#|#~m005902296_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Natural Linen (4880-NLI-50)~#|#~m005823962_sc7
Item: 282792
Model: 4880-NLI-50
Price is $27.89
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX #10 Window Envelopes, 4 1/8" x 9 1/2", 24 lb. White, Machine Insertable, 1000 Qty (28460-MI-1M)~#|#~m004064026_sc7
Item: 2146382
Model: 28460-MI-1M
No reviews yet
Price is $86.99
Unit of measure 1000/Pack
Free delivery by Wed, May 06
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LUX 11 1/2 x 14 1/2 Open End Envelopes 250/Pack, 28lb. Bright White (4166-250)~#|#~sp14807484_sc7
Item: 24260671
Model: 4166-250
No reviews yet
Price is $123.29
Unit of measure 250/Pack
Free delivery by Wed, May 06
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LUX 6 1/2 x 6 1/2 Square Envelopes, 50/Box, 70lb. Bright White (10928-50)~#|#~m000081546_sc7
Item: 282180
Model: 10928-50
Price is $29.79
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) 50/Box, Lilac (SH4265-05-50)~#|#~m000081716_sc7
Item: 282379
Model: 910003121/06827
No reviews yet
Price is $12.69
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper Catalog Envelope 10 1/2" x 7 1/2", White, 50/Pack (4120H)~#|#~sp111772311_sc7JAM Paper Catalog Envelope 10 1/2" x 7 1/2", White, 50/Pack (4120H)~#|#~sp111772310_sc7
Item: 2329373
Model: 4120H
Price is $14.89
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX A8 Invitation Envelopes (5 1/2 x 8 1/8) 50/Box, Natural (5885-01-50)~#|#~m000082130_sc7
Item: 282884
Model: 5885-01-50
Price is $15.99
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, Navy (LUX-4880-103-50)~#|#~m005902344_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Box, Navy (LUX-4880-103-50)~#|#~m005823963_sc7
Item: 282797
Model: LUX-4880-103-50
Price is $22.59
Unit of measure 50/Pack
Delivery by Wed, May 06
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Ship-Lite Self Seal Catalog Envelope 12" x 16", White, 100/Carton (SLE12162WS)~#|#~4F29BD66-2071-459A-9B2D6721BA946139_sc7
Item: 947673
Model: SLE12162WS
Price is $174.89
Unit of measure 100/Carton Price per unit $1.75/Case
Free delivery by Mon, May 04
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LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Limelight Green, 250/BX~#|#~m004940491_sc7LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Limelight Green, 250/BX~#|#~m005824012_sc7
Item: 388477
Model: LUX-4860-101-25
No reviews yet
Price is $96.19
Unit of measure 250/Box
Free delivery by Wed, May 06
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JAM Paper #10 Policy Envelope, 4 1/8" x 9 1/2", Olive, 100/Pack (125137469D)~#|#~B2A94576-43ED-4865-914A39215629727A_sc7
Item: 24557925
Model: 125137469D
No reviews yet
Price is $48.59
Unit of measure 100/Pack
Free delivery by Mon, May 04
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JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Ultra Lime Green, 25/Pack (96151)~#|#~sp134498294_sc7JAM Paper A7 Colored Invitation Envelopes, 5.25 x 7.25, Ultra Lime Green, 25/Pack (96151)~#|#~sp134498437_sc7
Item: 263892
Model: 96151
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, May 04
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LUX A2 Envelope - 24lb. White) 1000/Box, Machine Insertable 1000/Box~#|#~m004064012_sc7
Item: 2146360
Model: 80132-MI-1M
No reviews yet
Price is $129.19
Unit of measure 1000/Pack
Free delivery by Wed, May 06
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JAM Paper A6 Strathmore Invitation Envelopes, 4.75 x 6.5, Natural White Wove, 50/Pack (30243I)~#|#~m007159123_sc7JAM Paper A6 Strathmore Invitation Envelopes, 4.75 x 6.5, Natural White Wove, 50/Pack (30243I)~#|#~m007159122_sc7
Item: 1588851
Model: 30243I
No reviews yet
Price is $19.49
Unit of measure 50/Pack
Delivery by Mon, May 04
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LUX Open End Envelopes 6" x 11.5" White, 1000/box, 70lb. (61112-70W-1M)~#|#~m001406660_sc7
Item: 1277807
Model: 61112-70W-1M
No reviews yet
Price is $283.79
Unit of measure 1000/Box
Free delivery by Wed, May 06
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LUX A1 Invitation Envelopes (3 5/8 x 5 1/8) 50/Box, Natural - 100% Recycled (4865-NPC-50)~#|#~m000081723_sc7
Item: 282386
Model: 4865-NPC-50
No reviews yet
Price is $22.59
Unit of measure 50/Pack
Delivery by Wed, May 06
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Quality Park Tyvek Open End Envelope, 12" x 16" x 2", White, 100/Carton (QUAR4290)~#|#~s0171536_sc7
Item: 827951
Model: QUAR4290
Price is $396.09
Unit of measure 100/Carton
Free delivery by Mon, May 04
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LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 50/Pack, 60lb. White w/Peel & Press (4872-WPP-50)~#|#~sp14807639_sc7
Item: 24260946
Model: 4872-WPP-50
No reviews yet
Price is $19.29
Unit of measure 50/Pack
Delivery by Wed, May 06
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LUX 6.5" x 9.5" Open End Envelopes 50/Pack, Midnight Black (LUX-1645-56-50)~#|#~sp5822112_sc7LUX 6.5" x 9.5" Open End Envelopes 50/Pack, Midnight Black (LUX-1645-56-50)~#|#~3F76275D-0F71-431A-B0EA5AFD88BC93CD_sc7
Item: 23996441
Model: LUX-1645-56-50
No reviews yet
Price is $22.99
Unit of measure 50/Pack
Delivery by Wed, May 06
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JAM Paper A7 Parchment Invitation Envelopes, 5.25 x 7.25, Natural Recycled, 25/Pack (35394)~#|#~sp136742284_sc7JAM Paper A7 Parchment Invitation Envelopes, 5.25 x 7.25, Natural Recycled, 25/Pack (35394)~#|#~sp136742279_sc7
Item: 263958
Model: 35394
Price is $11.49
Unit of measure 25/Pack
Delivery by Mon, May 04
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JAM Paper 9.5 x 12.625 Booklet Commercial Envelopes, White, 100/Pack (953454B)~#|#~m003904734_sc7JAM Paper 9.5 x 12.625 Booklet Commercial Envelopes, White, 100/Pack (953454B)~#|#~m003904508_sc7
Item: 263761
Model: 953454B
No reviews yet
Price is $43.09
Unit of measure 100/Box
Free delivery by Mon, May 04
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JAM Paper 4Bar A1 Invitation Envelopes, 3.625 x 5.125, White, 25/Pack (47385)~#|#~sp111772467_sc7JAM Paper 4Bar A1 Invitation Envelopes, 3.625 x 5.125, White, 25/Pack (47385)~#|#~sp111772466_sc7
Item: 365855
Model: 47385
Price is $9.89
Unit of measure 25/Pack
Delivery by Mon, May 04
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LUX #10 All Purpose Window (4 1/8 x 9 1/2) 250/Box, 24lb. White w/ Sec Tint (WS-3133-250)~#|#~m004064002_sc7
Item: 2146680
Model: WS-3133-250
No reviews yet
Price is $33.29
Unit of measure 250/Pack
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.