Neenah Paper CLASSIC CREST #10 Envelope, Gummed Flap, 4 1/8 x 9 1/2, Avon Brilliant White, 500/Box (01843)~#|#~m002272798_sc7
Item: 2657444
Model: NEE6553000
Price is $63.79
Free delivery by Mon, Jun 16
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Quality Park Redi-Seal Security Tinted Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (QUA11218)~#|#~sp145132158_sc7Quality Park Redi-Seal Security Tinted Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (QUA11218)~#|#~sp145132157_sc7
Item: 507690
Model: QUA11218
Price is $99.09
Unit of measure 500/Box
Free delivery by Mon, Jun 16
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Southworth Linen Business Envelope, #10, 24 lb., Ivory, 50/Pack (P564-10)~#|#~s1174972_sc7Southworth Linen Business Envelope, #10, 24 lb., Ivory, 50/Pack (P564-10)~#|#~s1174973_sc7
Item: 418665
Model: P564-10
Price is $28.99
Unit of measure 50/Pack
Delivery by Tue, Jun 24
1-hr pickup
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Pack, White w/ Sec Tint, P&S (75747-50)~#|#~sp14807366_sc7
Item: 24260683
Model: 75747-50
Price is $30.89
Unit of measure 50/Pack
Delivery by Tue, Jun 24
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Quality Park Redi-Strip Security Tinted #10 Envelopes, 4-1/8" x 9-1/2", White, 30/Box (QUA69112)~#|#~s0375270_sc7Quality Park Redi-Strip Security Tinted #10 Envelopes, 4-1/8" x 9-1/2", White, 30/Box (QUA69112)~#|#~s0171469_sc7
Item: 813435
Model: QUA69112
Price is $15.49
Unit of measure 30/Box
Delivery by Mon, Jun 16
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Quality Park Redi-Strip Security Tinted #10 Treated Business Envelopes, 4 1/8" x 9 1/2", White Wove, 500/Box ~#|#~s1154906_sc7Quality Park Redi-Strip Security Tinted #10 Treated Business Envelopes, 4 1/8" x 9 1/2", White Wove, 500/Box ~#|#~s1172750_sc7
Item: 683586
Model: QUA90019R
Price is $93.59
Unit of measure 500/Box
Free delivery by Mon, Jun 16
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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
Great Papers Summer Meadow #10 Invitation Envelope 4 1/8" x 9 1/2", Multicolored, 25/Pack (2025002) is New at Staples
Item: 24632071
Model: 2025002
No reviews yet
Price is $7.79
Delivery by Wed, Jun 25
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", White, 1000/Carton (35532B)~#|#~sp4800450_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", White, 1000/Carton (35532B)~#|#~sp4800449_sc7
Item: 2633055
Model: 35532B
Price is $87.99
Unit of measure 1000/Carton
Free delivery by Fri, Jun 20
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Quality Park Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", White Wove, 1000/Carton (QUA90020B)~#|#~sp40322437_sc7Quality Park Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", White Wove, 1000/Carton (QUA90020B)~#|#~sp40322435_sc7
Item: 812435
Model: QUA90020B
Price is $87.99
Unit of measure 1000/Carton
Free delivery by Mon, Jun 16
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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, Jun 20
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JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", White, 50/Pack (49856I)~#|#~sp115352044_sc7JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", White, 50/Pack (49856I)~#|#~sp115352043_sc7
Item: 1588599
Model: 49856I
Price is $16.69
Unit of measure 50/Pack
Delivery by Fri, Jun 20
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Box, White w/ Simple Seal~#|#~m004063975_sc7
Item: 2147426
Model: 28726-50
No reviews yet
Price is $30.39
Unit of measure 50/Pack
Delivery by Tue, Jun 24
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JAM Paper #10 Policy Envelope, 4 1/8" x 9 1/2", Olive, 50/Pack (125137469I)~#|#~0317A995-6346-4603-94E01FB41B4EF7F4_sc7
Item: 24557948
Model: 125137469I
No reviews yet
Price is $25.39
Unit of measure 50/Pack
Delivery by Fri, Jun 20
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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, Jun 20
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JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Green, 500/Pack (15862H)~#|#~sp111772450_sc7JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Green, 500/Pack (15862H)~#|#~sp111772449_sc7
Item: 1589640
Model: 15862H
No reviews yet
Price is $151.79
Unit of measure 500/Box
Free delivery by Fri, Jun 20
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Box, 24lb. White Linen (WS-2960-50)~#|#~m004063955_sc7
Item: 2146463
Model: WS-2960-50
Price is $31.49
Unit of measure 50/Pack
Delivery by Tue, Jun 24
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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: 458291
Model: QUA11118
Price is $76.99
Unit of measure 500/Box
Free delivery by Mon, Jun 16
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JAM Paper #10 Tyvek Business Envelope, 4 1/8" x 9 1/2", White, 25/Pack (2131077)~#|#~m004542908_sc7JAM Paper #10 Tyvek Business Envelope, 4 1/8" x 9 1/2", White, 25/Pack (2131077)~#|#~m004542907_sc7
Item: 2329379
Model: 2131077
Price is $15.49
Unit of measure 25/Pack
Delivery by Fri, Jun 20
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LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes W/Glue, Gold Metallic, 250/BX~#|#~m004940416_sc7LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes W/Glue, Gold Metallic, 250/BX~#|#~m005823910_sc7
Item: 384977
Model: 5360-07-250
Price is $103.89
Unit of measure 250/Box
Free delivery by Tue, Jun 24
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JAM Paper Peel & Seal #10 Business Envelope, 4 1/8" x 9 1/2", Christmas Green, 50/Pack (86555I)~#|#~6D72CF40-FFBC-49D2-943889305B5B19A6_sc7
Item: 1588698
Model: 86555I
Price is $16.69
Unit of measure 50/Pack
Delivery by Fri, Jun 20
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JAM Paper Peel & Seal #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Christmas Red, 25/Pack (11789)~#|#~sp36388124_sc7JAM Paper Peel & Seal #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Christmas Red, 25/Pack (11789)~#|#~sp36388044_sc7
Item: 263862
Model: 11789
Price is $10.09
Unit of measure 25/Pack
Delivery by Fri, Jun 20
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Neenah Capitol Bond light cockle 25% cotton #10 24# Bright white Recycled~#|#~s1001269_sc7
Item: 1968193
Model: 5248500
No reviews yet
Price is $328.19
Unit of measure 2/Carton
Free delivery by Thu, Jun 26
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JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", Black Linen, 25/Pack (V01218)~#|#~m003905223_sc7JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", Black Linen, 25/Pack (V01218)~#|#~m003905222_sc7
Item: 261584
Model: V01218
Price is $12.99
Unit of measure 25/Pack
Delivery by Fri, Jun 20
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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, Jun 20
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Blue, 25/Pack (15861)~#|#~sp111772444_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Blue, 25/Pack (15861)~#|#~sp111772442_sc7
Item: 263914
Model: 15861
Price is $10.09
Unit of measure 25/Pack
Delivery by Fri, Jun 20
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JAM Paper #10 Policy Business Colored Envelopes, 4 1/8" x 9 1/2", Red Recycled, 25/Pack (25048)~#|#~m002934135_sc7JAM Paper #10 Policy Business Colored Envelopes, 4 1/8" x 9 1/2", Red Recycled, 25/Pack (25048)~#|#~m002934134_sc7
Item: 263863
Model: 25048
No reviews yet
Price is $14.49
Unit of measure 25/Pack
Delivery by Fri, Jun 20
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JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", Navy Blue, 25/Pack (LEBA317)~#|#~m003905148_sc7JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", Navy Blue, 25/Pack (LEBA317)~#|#~m003905147_sc7
Item: 261706
Model: LEBA317
Price is $14.49
Unit of measure 25/Pack
Delivery by Fri, Jun 20
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Baby Blue, 25/Pack (2155778)~#|#~sp121511889_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Baby Blue, 25/Pack (2155778)~#|#~sp121511888_sc7
Item: 261365
Model: 2155778
Price is $18.99
Unit of measure 25/Pack
Delivery by Fri, Jun 20
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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, Jun 20
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Quality Park Redi-Strip Self Seal Security Tinted #10 Business Envelope 4 1/8" x 9 1/2", White, 1000/Carton (QUA69122B)~#|#~sp108671159_sc7
Item: 2623287
Model: QUA69122B
No reviews yet
Price is $157.39
Unit of measure 1000/Carton
Free delivery by Mon, Jun 16
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Green, 25/Pack (15862)~#|#~sp111772450_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Green, 25/Pack (15862)~#|#~sp111772449_sc7
Item: 261274
Model: 15862
Price is $10.09
Unit of measure 25/Pack
Delivery by Fri, Jun 20
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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, Jun 20
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JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", Baby Blue, 25/Pack (3961300)~#|#~m003904856_sc7JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", Baby Blue, 25/Pack (3961300)~#|#~m003904855_sc7
Item: 261366
Model: 3961300
Price is $14.49
Unit of measure 25/Pack
Delivery by Fri, Jun 20
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JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Dark Purple, 50/Pack (563912518I)~#|#~m003905003_sc7JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Dark Purple, 50/Pack (563912518I)~#|#~m003905002_sc7
Item: 1588602
Model: 563912518I
No reviews yet
Price is $25.39
Unit of measure 50/Pack
Delivery by Fri, Jun 20
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Box, 24lb. White w/ FDIC Security Tint (WS-2652-50)~#|#~m004064021_sc7
Item: 2147235
Model: WS-2652-50
Price is $29.49
Unit of measure 50/Pack
Delivery by Tue, Jun 24
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JAM Paper Self Seal #10 Booklet Envelope 4 1/8" x 9 1/2", White, 50/Pack (75746-50)~#|#~3AFDDC25-BCBE-41D2-B6EC48C84E0E7D06_sc7JAM Paper Self Seal #10 Booklet Envelope 4 1/8" x 9 1/2", White, 50/Pack (75746-50)~#|#~4E8014B3-0A90-4BAA-BFF44CF296C8DF22_sc7
Item: 24604594
Model: 75746-50
No reviews yet
Price is $14.95
Unit of measure 50/Pack
Delivery by Fri, Jun 20
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LUX 70lbs. 4 1/8" x 9 1/2" #10 Business Envelopes W/Peel & Press, Magenta Pink, 250/BX~#|#~m004940454_sc7LUX 70lbs. 4 1/8" x 9 1/2" #10 Business Envelopes W/Peel & Press, Magenta Pink, 250/BX~#|#~m005823998_sc7
Item: 386315
Model: EX4860-10-250
No reviews yet
Price is $103.19
Unit of measure 250/Box
Free delivery by Tue, Jun 24
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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, Jun 24
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LUX 4 1/8" x 9 1/2" #10 60lbs. Envelopes, White With Silver LUX Lining, 50/Pack~#|#~m000081264_sc7
Item: 281875
Model: FLWH4260-03-50
Price is $39.79
Unit of measure 50/Pack
Free delivery by Tue, Jun 24
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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.