Sponsored Products

Letter Envelopes

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, Aug 19
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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 Next-Day eligible by Mon, Aug 11
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Quality Park Flap-Stik V-Flap Security Tinted #10 Business Envelope, 4 1/2" x 9 1/2", White, 500/Box (90030)~#|#~s0462616_sc7
Item: 831281
Model: QUA90030
No reviews yet
Price is $47.49
Unit of measure 500/Box
Free Next-Day eligible by Mon, Aug 11
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Quality Park Gummed Brightly Colored Business #10 Envelopes, 4-1/8" x 9-1/2", Red, 25/Pack~#|#~s0171214_sc7
Item: 507682
Model: QUA11134
Price is $7.79
Unit of measure 25/Pack
Next-Day Delivery by Mon, Aug 11
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Quality Park #10 Business Envelope, 4-1/8" x 9-1/2", White, 50/Box (QUA69016)~#|#~s0171467_sc7Quality Park #10 Business Envelope, 4-1/8" x 9-1/2", White, 50/Box (QUA69016)~#|#~3856A88D-4B83-428E-B893D04EC624F435_sc7
Item: 813430
Model: QUA69016
Price is $22.09
Unit of measure 50/Box
Next-Day Delivery by Mon, Aug 11
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 500/Pack, White w/ Sec Tint, P&S (75747-500)~#|#~sp14807366_sc7
Item: 24260678
Model: 75747-500
Price is $110.09
Unit of measure 500/Pack
Free delivery by Tue, Aug 19
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Southworth Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", Natural, 250/Box (J404N-10)~#|#~s1175033_sc7Southworth Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", Natural, 250/Box (J404N-10)~#|#~s1174991_sc7
Item: 581511
Model: J404N-10
Price is $44.09
Unit of measure 250/Box
Free Next-Day eligible by Mon, Aug 11
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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 Next-Day eligible by Mon, Aug 11
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JAM Paper #10 Business Colored Envelopes, 4.125 x 9.5, Ultra Fuchsia Pink, Bulk 500/Box (15847H)~#|#~m003904529_sc7JAM Paper #10 Business Colored Envelopes, 4.125 x 9.5, Ultra Fuchsia Pink, Bulk 500/Box (15847H)~#|#~m003904528_sc7
Item: 1589650
Model: 15847H
No reviews yet
Price is $151.79
Unit of measure 500/Box
Free delivery by Fri, Aug 15
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JAM Paper #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Brown Kraft, 1000/Carton (3984B)~#|#~sp111772303_sc7JAM Paper #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Brown Kraft, 1000/Carton (3984B)~#|#~sp111772302_sc7
Item: 364375
Model: 3984B
Price is $152.09
Unit of measure 1000/Carton
Free delivery by Fri, Aug 15
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LUX 13lbs. 4 1/8" x 9 1/2" #10 Regular Envelopes, Airmail, 250/BX~#|#~m000161316_sc7
Item: 385972
Model: 92908-250
No reviews yet
Price is $100.29
Unit of measure 250/Box
Free delivery by Tue, Aug 19
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JAM Paper #10 Metallic Business Envelopes, 4.125 x 9.5, Stardream Gold, 25/Pack (SD5360 07)~#|#~m003905201_sc7JAM Paper #10 Metallic Business Envelopes, 4.125 x 9.5, Stardream Gold, 25/Pack (SD5360 07)~#|#~m003905200_sc7
Item: 261972
Model: SD5360 07
No reviews yet
Price is $24.79
Unit of measure 25/Pack
Delivery by Fri, Aug 15
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LUX #10 Window Envelopes, 4 1/8" x 9 1/2", 24 lb. White, Machine Insertable, 250 Qty (28460-MI-250)~#|#~m004064026_sc7
Item: 2146394
Model: 28460-MI-250
No reviews yet
Price is $55.29
Unit of measure 250/Pack
Free delivery by Tue, Aug 19
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JAM Paper Strathmore Open End #10 Business Envelope, 4 1/8" x 9 1/2", Bright White, 50/Pack (18506I)~#|#~m007063336_sc7JAM Paper Strathmore Open End #10 Business Envelope, 4 1/8" x 9 1/2", Bright White, 50/Pack (18506I)~#|#~m007063335_sc7
Item: 1588781
Model: 18506I
No reviews yet
Price is $19.99
Unit of measure 50/Pack
Delivery by Fri, Aug 15
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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, Aug 19
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JAM Paper #10 Booklet Envelope, 4 1/8" x 9 1/2", Ultra Lime Green, 100/Pack (71091d)~#|#~64B4A4E6-B9EF-44E9-8A51B1EF5D123439_sc7JAM Paper #10 Booklet Envelope, 4 1/8" x 9 1/2", Ultra Lime Green, 100/Pack (71091d)~#|#~286F6C91-B3E6-46F8-8E2B0C3FC54EFABB_sc7
Item: 24604459
Model: 71091d
No reviews yet
Price is $27.99
Unit of measure 100/Pack
Delivery by Fri, Aug 15
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LUX 80lb 4 1/8"x9 1/2" Open End #10 Envelopes W/Peel&Press, Natural, 250/BX~#|#~m000211241_sc7
Item: 515118
Model: 7716-NPC-250
No reviews yet
Price is $86.99
Free delivery by Tue, Aug 19
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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, Aug 15
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LUX 80lbs. 4 1/8" x 9 1/2" #10 Open End Envelopes, Wisteria Purple, 250/BX~#|#~m000081288_sc7
Item: 388708
Model: LUX-7716-106-25
No reviews yet
Price is $122.37
Unit of measure 250/Box
Free delivery by Tue, Aug 19
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Great Papers! #10 Business Envelope, 4 1/8" x 9 1/2", Ivory, 40/Pack (2013204)~#|#~s0953748_sc7
Item: 1605555
Model: 2013204
Price is $8.79
Unit of measure 40/Pack
Delivery by Wed, Aug 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, Aug 21
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Great Papers #10 Business Envelope 4 1/8" x 9 1/2", Black, 40/Pack (2013208)~#|#~s0953749_sc7
Item: 1605564
Model: 2013208
Price is $14.79
Unit of measure 40/Pack
Delivery by Wed, Aug 20
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Gartner Studios School Day Icons #10 Document Envelope, 4 1/8" x 9 1/2", White, 20/Pack (52065)~#|#~35292576-3B52-4E69-85B3E320D92BBC25_sc7Gartner Studios School Day Icons #10 Document Envelope, 4 1/8" x 9 1/2", White, 20/Pack (52065)~#|#~ECDE19BA-7C43-499D-97EF5913AC036B30_sc7
Item: 24431599
Model: 52065
No reviews yet
Price is $9.49
Delivery by Tue, Aug 19
30-min pickup
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LUX 80lb 4 1/8"x9 1/2" Square Flap #10 Envelopes, Smoke Gray, 500/BX~#|#~m000161299_sc7
Item: 516408
Model: EX4860-22-500
Price is $134.59
Free delivery by Tue, Aug 19
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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
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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.