Square Envelopes

JAM Paper Square Envelopes, Peel & Press, 3 1/4 x 3 1/4, Black Linen, 250 Pack (8503-BLI-250)~#|#~sp228873250_sc7
Item: 24578286
Model: 8503-BLI-250
No reviews yet
Price is $42.99
Unit of measure 250/Pack
Free delivery by Wed, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 6 x 6 Square Envelopes 50/Pack, White - 100% Recycled (8525-WPC-50)~#|#~sp14807813_sc7
Item: 24261274
Model: 8525-WPC-50
No reviews yet
Price is $15.99
Unit of measure 50/Pack
Delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Aqua Blue, 25/Pack (1523976)~#|#~m002934481_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Aqua Blue, 25/Pack (1523976)~#|#~m003904752_sc7
Item: 364291
Model: 1523976
No reviews yet
Price is $20.49
Unit of measure 25/Pack
Delivery by Wed, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
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, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 6 x 6 Square Envelopes 250/Pack, 70lb. Bright White (10910-250)~#|#~sp14807880_sc7
Item: 24261053
Model: 10910-250
No reviews yet
Price is $58.89
Unit of measure 250/Pack
Free delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 7 1/4" x 5 1/4" 70lbs. Postage Saver Envelopes W/Peel & Press, Bright White, 50/Pack~#|#~m000081518_sc7LUX 7 1/4" x 5 1/4" 70lbs. Postage Saver Envelopes W/Peel & Press, Bright White, 50/Pack~#|#~43964C72-4044-4051-8F8454F3C85A2194_sc7
Item: 282149
Model: 55PS-W-50
No reviews yet
Price is $20.69
Unit of measure 50/Pack
Delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 11 1/2 x 14 1/2 Kraft Open End Envelopes 50/Pack, 28lb. Brown Kraft (318-50)~#|#~sp14807522_sc7
Item: 24260564
Model: 318-50
Price is $45.09
Unit of measure 50/Pack
Free delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper A9 Invitation Envelopes, 5.75 x 8.75, Dark Green, 50/Pack (157459i)~#|#~sp137085983_sc7
Item: 24006047
Model: 157459I
No reviews yet
Price is $29.89
Unit of measure 50/Pack
Delivery by Wed, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX A2 (4 3/8 x 5 3/4) 50/Box, Magenta (EX4870-10-50)~#|#~m000081799_sc7
Item: 282473
Model: EX4870-10-50
No reviews yet
Price is $12.19
Unit of measure 50/Pack
Delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 5 1/2 x 5 1/2 Square Envelopes 50/Box) 50/Box, Midnight Black (F-8515-B-50)~#|#~m000081489_sc7
Item: 282120
Model: F-8515-B-50
No reviews yet
Price is $44.59
Unit of measure 50/Pack
Free delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
80 lb 6 1/4" x 6 1/4" Peel & Press Square Linen Envelopes, White, 50/Pack~#|#~m001149702_sc7
Item: 1029999
Model: 8530-WLI-50
Price is $22.79
Delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 4 1/8" x 9 1/2" #10 70lbs. Open End Envelopes, Baby Blue, 50/Pack~#|#~m000081266_sc7
Item: 281877
Model: EX7716-13-50
No reviews yet
Price is $31.39
Unit of measure 50/Pack
Delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper A10 Translucent Vellum Invitation Envelopes, 6 x 9.5, Racing Green, Bulk 250/Box (PACV863H)~#|#~m002169067_sc7
Item: 1589966
Model: PACV863H
No reviews yet
Price is $283.99
Unit of measure 250/Box
Free delivery by Wed, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 9 x 12 Booklet Envelopes 50/Pack, Mandarin (EX4899-11-50)~#|#~sp14807529_sc7
Item: 24260856
Model: EX4899-11-50
Price is $33.59
Unit of measure 50/Pack
Delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX A6 Invitation Envelopes (4 3/4 x 6 1/2) 250/Box, 24lb. White~#|#~m004064012_sc7
Item: 2146367
Model: 39892-MI-250
No reviews yet
Price is $63.59
Unit of measure 250/Pack
Free delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 3 5/8" x 5 1/8" 80lbs. A1 Invitation Envelopes W/Glue, Quartz Metallic, 50/Pack~#|#~2A9169FB-937C-488F-A893556A2903DE9E_sc7LUX 3 5/8" x 5 1/8" 80lbs. A1 Invitation Envelopes W/Glue, Quartz Metallic, 50/Pack~#|#~9055ABF4-0DAC-45DE-B9A37A651CC7428A_sc7
Item: 282394
Model: 5365-08-50
No reviews yet
Price is $18.09
Unit of measure 50/Pack
Delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX #10 Square Flap Envelopes (4 1/8 x 9 1/2) 50/Pack, Holiday Green (LUX-4860-L17-50)~#|#~sp14807483_sc7
Item: 24260610
Model: LUX-4860-L17-50
No reviews yet
Price is $26.49
Unit of measure 50/Pack
Delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 70lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Candy Pink, 250/BX~#|#~m004940458_sc7LUX 70lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Candy Pink, 250/BX~#|#~m005824001_sc7
Item: 386323
Model: EX4860-14-250
Price is $72.89
Unit of measure 250/Box
Free delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Ultra Fuchsia Pink, 50/Pack (356730545I)~#|#~sp115352069_sc7JAM Paper #5.5 Coin Business Colored Envelopes, 3.125 x 5.5, Ultra Fuchsia Pink, 50/Pack (356730545I)~#|#~sp115352067_sc7
Item: 2329356
Model: 356730545I
No reviews yet
Price is $18.39
Unit of measure 50/Pack
Delivery by Wed, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Primary Blue, 50/Pack (PACV607I)~#|#~m003904762_sc7JAM Paper A2 Translucent Vellum Invitation Envelopes, 4.375 x 5.75, Primary Blue, 50/Pack (PACV607I)~#|#~m003905184_sc7
Item: 1588963
Model: PACV607I
No reviews yet
Price is $39.99
Unit of measure 50/Pack
Free delivery by Wed, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Purple, 12/Pack (921B1PU)~#|#~m004858138_sc7JAM Paper® Plastic Envelopes with Button and String Tie Closure, #10 Business Booklet, 5.25 x 10, Purple, 12/Pack (921B1PU)~#|#~m004857981_sc7
Item: 1227723
Model: 921B1PU
No reviews yet
Price is $27.39
Unit of measure 12/Pack Price per unit $2.28/Envelope
Delivery by Wed, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 2.375 x 2.375 Mini Square Envelopes, White, 25/Pack (203642)~#|#~sp121512130_sc7JAM Paper 2.375 x 2.375 Mini Square Envelopes, White, 25/Pack (203642)~#|#~sp121512129_sc7
Item: 262661
Model: 203642
Price is $11.49
Unit of measure 25/Pack
Delivery by Wed, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 9 x 12 Booklet Envelopes, Navy Blue, 25/Pack (263916011)~#|#~sp121512037_sc7JAM Paper 9 x 12 Booklet Envelopes, Navy Blue, 25/Pack (263916011)~#|#~sp121512036_sc7
Item: 261714
Model: 263916011
No reviews yet
Price is $31.19
Unit of measure 25/Pack
Delivery by Wed, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 7 x 7 Square Envelopes, 50/Box, Pool (LUX-8545-102-50)~#|#~m000081637_sc7
Item: 282286
Model: LUX-8545-102-50
Price is $21.99
Unit of measure 50/Pack
Delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 10 x 15 Open End Catalog Envelopes, White, Bulk 1000/Carton (01623200B)~#|#~sp61031462_sc7JAM Paper 10 x 15 Open End Catalog Envelopes, White, Bulk 1000/Carton (01623200B)~#|#~sp61031302_sc7
Item: 24006123
Model: 01623200B
No reviews yet
Price is $452.99
Unit of measure 1000/Carton
Free delivery by Wed, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX Self Seal Catalog Envelope 6" x 9", Black (1644-BLI-250)~#|#~350B24FB-055D-4DDE-B05FA81264611023_sc7LUX Self Seal Catalog Envelope 6" x 9", Black (1644-BLI-250)~#|#~m001149711_sc7
Item: 1028641
Model: 1644-BLI-250
No reviews yet
Price is $91.49
Free delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 6 1/2 x 6 1/2 Square Envelopes, 50/Box, Gold Metallic (8535-07-50)~#|#~m000081570_sc7
Item: 282206
Model: 8535-07-50
No reviews yet
Price is $35.79
Unit of measure 50/Pack
Free delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX A4 Invitation Envelopes (4 1/4 x 6 1/4) 500/Box, Vintage Plum (LUX-4872-104500)~#|#~m000081880_sc7
Item: 517539
Model: LUX-4872-104500
No reviews yet
Price is $113.69
Free delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 9 x 12 Open End Catalog Translucent Vellum Envelopes, Clear, 25/Pack (2851376a)~#|#~sp11854823_sc7
Item: 24145245
Model: 2851376A
No reviews yet
Price is $35.09
Unit of measure 25/Pack
Free delivery by Wed, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, Smoke (EX4880-22-500)~#|#~m005902333_sc7LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 500/Box, Smoke (EX4880-22-500)~#|#~m000082080_sc7
Item: 514245
Model: EX4880-22-500
No reviews yet
Price is $142.69
Free delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
Quality Park Redi-Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White Wove, 500/Box (QUA11118)~#|#~sp40286632_sc7Quality Park Redi-Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White Wove, 500/Box (QUA11118)~#|#~sp40286631_sc7
Item: QUA11118
Model: QUA11118
Price is $73.59
Unit of measure Box
Free delivery by Mon, Sep 28
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper A2 Strathmore Invitation Envelopes, 4.375 x 5.75, Bright White Linen, Bulk 250/Box (66670H)~#|#~sp132864295_sc7JAM Paper A2 Strathmore Invitation Envelopes, 4.375 x 5.75, Bright White Linen, Bulk 250/Box (66670H)~#|#~sp132864294_sc7
Item: 1589311
Model: 66670H
No reviews yet
Price is $86.89
Unit of measure 250/Box
Free delivery by Wed, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX #10 Square Flap Envelopes (4 1/8 x 9 1/2) 50/Pack, Baby Blue (EX4860-13-50)~#|#~sp14807369_sc7
Item: 24260916
Model: EX4860-13-50
No reviews yet
Price is $25.19
Unit of measure 50/Pack
Delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX #1 Coin Envelopes (2 1/4 x 3 1/2) 1000/Box, Mandarin (LUX-1CO-11-1000)~#|#~m001149696_sc7
Item: 1028542
Model: LUX-1CO-11-1000
No reviews yet
Price is $118.99
Free delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) 50/Pack, Blonde Metallic (5380-M07-50)~#|#~sp14807810_sc7
Item: 24261228
Model: 5380-M07-50
Price is $25.69
Unit of measure 50/Pack
Delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper #1 Coin Business Colored Envelopes, 2.25 x 3.5, Orange Recycled, 50/Pack (352627815I)~#|#~m003758026_sc7JAM Paper #1 Coin Business Colored Envelopes, 2.25 x 3.5, Orange Recycled, 50/Pack (352627815I)~#|#~m003750604_sc7
Item: 2329398
Model: 352627815I
No reviews yet
Price is $16.19
Unit of measure 50/Pack
Delivery by Wed, Sep 30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 8 3/4 x 11 1/4 Open End Envelopes 50/Pack, 24lb. Bright White (7450-50)~#|#~sp14807592_sc7
Item: 24260991
Model: 7450-50
Price is $27.59
Unit of measure 50/Pack
Delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 5 3/4" x 8 3/4" 60lbs. Square Flap Envelopes W/Peel & Press, White/Black LUX Lining~#|#~m000082189_sc7
Item: 282955
Model: FLWH4895-02-50
No reviews yet
Price is $24.19
Unit of measure 50/Pack
Delivery by Mon, Oct 05
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper A6 Invitation Envelopes, 4.75 x 6.5, Navy Blue, Bulk 1000/Carton (LEBA667B)~#|#~m003905156_sc7JAM Paper A6 Invitation Envelopes, 4.75 x 6.5, Navy Blue, Bulk 1000/Carton (LEBA667B)~#|#~m003905155_sc7
JAM Paper A6 Invitation Envelopes, 4.75 x 6.5, Navy Blue, Bulk 1000/Carton (LEBA667B) is Out of stock
Item: 261722
Model: LEBA667B
No reviews yet
Price is $317.59
Unit of measure 1000/Carton
LUX 9" x 12" Open End Window Envelopes, Limelight Green~#|#~m001406666_sc7
LUX 9" x 12" Open End Window Envelopes, Limelight Green is Out of stock
Item: 1277745
Model: LUX-1590-101-50
No reviews yet
Price is $55.39
Unit of measure 50/Pack

Trending now

Page 1 of 3
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.