Sponsored Products

Letter Envelopes

LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Box, 24lb. Natural Linen (WS-2961-50)~#|#~m004063954_sc7
Item: 2146462
Model: WS-2961-50
No reviews yet
Price is $31.49
Unit of measure 50/Pack
Delivery by Tue, Aug 19
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 Peel & Seel Self Seal #10 Business Envelope, 4 1/2" x 9 1/2", White, 500/Pack (75746-500)~#|#~sp14807440_sc7
Item: 24260640
Model: 75746-500
No reviews yet
Price is $110.09
Unit of measure 500/Pack
Free delivery by Tue, Aug 19
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 $71.09
Unit of measure 250/Box
Free delivery by Tue, Aug 19
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, White - 100% Recycled (4860-WPC-50)~#|#~sp14807406_sc7
Item: 24260847
Model: 4860-WPC-50
Price is $19.19
Unit of measure 50/Pack
Delivery by Tue, Aug 19
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 80lbs. Open End Envelopes, Pool Blue, 50/Pack~#|#~m000081280_sc7
Item: 281891
Model: LUX-7716-102-50
Price is $52.39
Unit of measure 50/Pack
Free delivery by Tue, Aug 19
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
Great Papers! Jolly Holly #10 Envelope, 4 1/8" x 9 1/2", Green, 40/Pack (2011611)~#|#~s0439871_sc7Great Papers! Jolly Holly #10 Envelope, 4 1/8" x 9 1/2", Green, 40/Pack (2011611)~#|#~s0440782_sc7
Item: 401027
Model: 2011611
Price is $8.29
Unit of measure 40/Pack
Delivery by Wed, Aug 20
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", Yellow, 25/Pack (15859)~#|#~sp111772364_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Yellow, 25/Pack (15859)~#|#~sp111772363_sc7
Item: 260986
Model: 15859
Price is $10.09
Unit of measure 25/Pack
Delivery by Fri, Aug 15
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 80lbs. Square Flap Envelopes, Crystal Metallic, 50/Pack~#|#~m004940428_sc7LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes, Crystal Metallic, 50/Pack~#|#~m005823906_sc7
Item: 281920
Model: 5360-30-50
No reviews yet
Price is $39.09
Unit of measure 50/Pack
Free delivery by Tue, Aug 19
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 Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", Blue, 250/Pack (5360-13-250)~#|#~sp228873252_sc7
Item: 24578290
Model: 5360-13-250
No reviews yet
Price is $74.29
Unit of measure 250/Pack
Free delivery by Fri, Aug 15
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", White, 250/Pack (43687-250)~#|#~sp228873470_sc7JAM Paper #10 Business Envelope 4 1/8" x 9 1/2", White, 250/Pack (43687-250)~#|#~sp228873469_sc7
Item: 24578329
Model: 43687-250
Price is $30.89
Unit of measure 250/Pack
Delivery by Fri, Aug 15
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 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 $19.39
Unit of measure 50/Pack
Delivery by Tue, Aug 19
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 Strathmore #10 Business Envelope, 4 1/8" x 9 1/2", Bright White Wove, 25/Pack (64933)~#|#~sp112110502_sc7JAM Paper Strathmore #10 Business Envelope, 4 1/8" x 9 1/2", Bright White Wove, 25/Pack (64933)~#|#~sp112110501_sc7
Item: 262529
Model: 64933
Price is $19.19
Unit of measure 25/Pack
Delivery by Fri, Aug 15
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 80lbs. Square Flap Envelopes W/Glue Closure, Gold Metallic~#|#~m004940416_sc7LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes W/Glue Closure, Gold Metallic~#|#~m005823910_sc7
Item: 281925
Model: 5360-07-50
Price is $41.89
Unit of measure 50/Pack
Free delivery by Tue, Aug 19
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 Policy Business Envelopes, 4 1/8" x 9 1/2", White, 25/Pack (49856)~#|#~sp115352044_sc7JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", White, 25/Pack (49856)~#|#~sp115352043_sc7
Item: 366523
Model: 49856
No reviews yet
Price is $9.39
Unit of measure 25/Pack
Delivery by Fri, Aug 15
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 Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 1000/Pack (43687-1M)~#|#~sp228873585_sc7JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 1000/Pack (43687-1M)~#|#~sp228873584_sc7
Item: 24578650
Model: 43687-1M
No reviews yet
Price is $78.09
Unit of measure 1000/Pack
Free delivery by Fri, Aug 15
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 Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 250/Pack (75746-250)~#|#~sp228873484_sc7JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 250/Pack (75746-250)~#|#~sp228873483_sc7
Item: 24578367
Model: 75746-250
No reviews yet
Price is $68.99
Unit of measure 250/Pack
Free delivery by Fri, Aug 15
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 Tyvek Business Envelope, 4 1/8" x 9 1/2", White, 50/Pack (2131077C)~#|#~m004542908_sc7JAM Paper #10 Tyvek Business Envelope, 4 1/8" x 9 1/2", White, 50/Pack (2131077C)~#|#~m004542907_sc7
Item: 2329434
Model: 2131077C
No reviews yet
Price is $28.69
Unit of measure 50/Pack
Delivery by Fri, Aug 15
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 60lbs. Electric Regular Envelopes, Green, 50/Pack~#|#~m000081295_sc7
Item: 281906
Model: 4260-22-50
Price is $14.29
Unit of measure 50/Pack
Delivery by Tue, Aug 19
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
Great Papers Summer Meadow #10 Invitation Envelope 4 1/8" x 9 1/2", Multicolored, 25/Pack (2025002)~#|#~F5A1B04F-F755-4A8E-82F6B75DC1939D23_sc7Great Papers Summer Meadow #10 Invitation Envelope 4 1/8" x 9 1/2", Multicolored, 25/Pack (2025002)~#|#~FEB3D2BC-AE29-4281-9A174556EFB7F766_sc7
Item: 24632071
Model: 2025002
No reviews yet
Price is $7.79
Delivery by Wed, Aug 20
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 Strathmore #10 Business Envelope, 4 1/8" x 9 1/2", Bright White, 25/Pack (18506)~#|#~m007063336_sc7JAM Paper Strathmore #10 Business Envelope, 4 1/8" x 9 1/2", Bright White, 25/Pack (18506)~#|#~m007063335_sc7
Item: 263980
Model: 18506
Price is $19.99
Unit of measure 25/Pack
Delivery by Fri, Aug 15
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
Neenah Paper #10 Business Envelope, 4 1/8" x 9 1/2", Classic tural White, 500/Box (NEE2803300)~#|#~m002294530_sc7
Item: 2622244
Model: NEE2803300
No reviews yet
Price is $117.29
Unit of measure 500/Box
Free Next-Day eligible by Mon, Aug 11
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", Orange, 50/Pack (15860I)~#|#~sp112110495_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Orange, 50/Pack (15860I)~#|#~sp112110494_sc7
Item: 1588559
Model: 15860I
Price is $16.69
Unit of measure 50/Pack
Delivery by Fri, Aug 15
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 Regular (4 1/8 x 9 1/2) 50/Box, Airmail w/ Security Tint (WS-2956-50)~#|#~m004063949_sc7
Item: 2146693
Model: WS-2956-50
No reviews yet
Price is $36.39
Unit of measure 50/Pack
Free delivery by Tue, Aug 19
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", Fuchsia Pink, 25/Pack (15847)~#|#~m003904529_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Fuchsia Pink, 25/Pack (15847)~#|#~m003904528_sc7
Item: 263898
Model: 15847
Price is $19.99
Unit of measure 25/Pack
Delivery by Fri, Aug 15
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 Moistenable Glue #10 Window Envelope, 4 1/2" x 9 1/2", Electric Yellow, 50/Pack (4261-20-50)~#|#~m000081284_sc7
Item: 281895
Model: EX7716-12-50
Price is $71.19
Unit of measure 50/Pack
Free delivery by Tue, Aug 19
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 Regular Envelopes (4 1/8 x 9 1/2) 250/Pack, Mandarin (LUX-4260-11-250)~#|#~sp12274947_sc7LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 250/Pack, Mandarin (LUX-4260-11-250)~#|#~sp12275002_sc7
Item: 24162011
Model: LUX-4260-11-250
No reviews yet
Price is $62.69
Unit of measure 250/Pack
Free delivery by Tue, Aug 19
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 Policy Business Envelopes, 4 1/8" x 9 1/2", Aqua Blue, 25/Pack (21520986)~#|#~m002934469_sc7JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", Aqua Blue, 25/Pack (21520986)~#|#~m003904907_sc7
Item: 363434
Model: 21520986
No reviews yet
Price is $14.49
Unit of measure 25/Pack
Delivery by Fri, Aug 15
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", Teal Blue, 50/Pack (63924024I)~#|#~sp134498426_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Teal Blue, 50/Pack (63924024I)~#|#~sp134498425_sc7
Item: 2633057
Model: 63924024I
No reviews yet
Price is $33.19
Unit of measure 50/Pack
Delivery by Fri, Aug 15
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 Open End #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Brown Kraft, 50/Pack (6314842I)~#|#~sp74308924_sc7JAM Paper Open End #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Brown Kraft, 50/Pack (6314842I)~#|#~sp74308921_sc7
Item: 1588608
Model: 6314842I
Price is $23.89
Unit of measure 50/Pack
Delivery by Fri, Aug 15
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

Letter envelopes are an essential office supply for any home or office. These standard, versatile envelopes can be used to mail letters, checks, documents and more. At Staples, you can buy letter size envelopes in bulk in packs of anywhere from 25 to 2,500. Learn about the different types of letter envelopes below.

What Are Letter Envelopes?

A letter envelope is a sealable paper envelope typically measuring 4 ⅛ inches by 9 ½ inches, also known as a #10 envelope. Letter envelopes are not meant to contain thick or heavy objects. Rather, they’re meant to hold paper and other thin, light and flat materials. A letter-size envelope is also often compatible with a printer for those who want to print addresses rather than write them by hand. These #10 envelopes are the perfect size for mailing letters or documents because they are not too small to be accepted by postal services and not too big to require extra postage.

Types of Letter Envelopes

Letter envelopes also come in several different styles, the most common of which are described below.

  • Environmentally Friendly Envelopes - These are made from recycled paper and are great for households or businesses that do a lot of mailing to reduce environmental impact.
  • Business Envelopes - These envelopes include a clear plastic window for parts of the documents inside to be made visible. These windows have securely gummed closures to ensure that the contents of the envelope stay protected.
  • Multi-Colored Envelopes - Letter envelopes come in a variety of color options, including beige, pink, yellow, green, purple and more.
  • V-Flap Envelopes - The standard letter envelope is designed with a rectangular adhesive flap, but triangular, or “v-flap,” adhesive flaps are also available and are commonly used with greeting cards and invitations.
  • Linen Envelopes - Some letter envelopes come with a linen finish to set your letter apart and add an elegant touch.

How Do I Mail a Letter Envelope?

Here are the steps needed to mail a classic #10 letter envelope:

  1. On the side without the seal, write or print the recipient's address in the middle with a legible pen (pencil marks can dull or rub off in transit). Write the sender’s address in the envelope’s top left corner.
  2. In the top right corner, you will need to place adequate postage for the envelope to reach its destination.
  3. With the material you want to send inside the envelope, seal it by adding a light amount of moisture to the adhesive flap. If you don’t prefer to use your tongue, you can use a moist sponge or cotton swab to do this. Alternatively, you can even use tape or glue sticks to seal envelopes. Some letter envelope varieties are self-seal or peel-and-seal and are able to seal on their own without needing added moisture.
  4. Place the envelope in a USPS mailbox or bring it to a post office.