Letter Envelopes

LUX 70lb 4 1/8"x9 1/2" Open End #10 Envelopes, Natural, 500/BX~#|#~m000161321_sc7
Item: 516419
Model: 7716-N-500
No reviews yet
Price is $95.79
Free delivery by Wed, Apr 08
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JAM Paper #10 Policy Business Colored Envelopes, 4.125 x 9.5, Orange Recycled, 50/Pack (15887I)~#|#~m003904556_sc7JAM Paper #10 Policy Business Colored Envelopes, 4.125 x 9.5, Orange Recycled, 50/Pack (15887I)~#|#~m003904555_sc7
Item: 1588703
Model: 15887I
No reviews yet
Price is $26.09
Unit of measure 50/Pack
Delivery by Mon, Apr 06
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JAM Paper #10 Self Seal Policy Envelopes, 4 1/8" x 9 1/2", White, 50/Pack (7716-WPC-50)~#|#~694E0532-B9FF-4F9A-8AF371917575751B_sc7JAM Paper #10 Self Seal Policy Envelopes, 4 1/8" x 9 1/2", White, 50/Pack (7716-WPC-50)~#|#~4AD46315-C131-4BC0-ADC2542FAEFF64D0_sc7
Item: 24604534
Model: 7716-WPC-50
No reviews yet
Price is $13.95
Unit of measure 50/Pack
Delivery by Mon, Apr 06
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JAM Paper #10 Business Colored Envelopes, 4 1/8" x 9 1/2", Orange Recycled, Bulk 1000/Carton (15860B)~#|#~sp112110495_sc7JAM Paper #10 Business Colored Envelopes, 4 1/8" x 9 1/2", Orange Recycled, Bulk 1000/Carton (15860B)~#|#~sp112110494_sc7
Item: 261242
Model: 15860B
No reviews yet
Price is $257.39
Unit of measure 1000/Carton
Free delivery by Mon, Apr 06
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Orange, 25/Pack (15860)~#|#~sp112110495_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Orange, 25/Pack (15860)~#|#~sp112110494_sc7
Item: 261229
Model: 15860
Price is $10.29
Unit of measure 25/Pack
Delivery by Mon, Apr 06
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Black, 25/Pack (900921796)~#|#~sp121511910_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Black, 25/Pack (900921796)~#|#~sp121511815_sc7
Item: 261583
Model: 900921796
Price is $20.49
Unit of measure 25/Pack
Delivery by Mon, Apr 06
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JAM Paper #10 Tyvek Business Envelope, 4 1/8" x 9 1/2", White, 250/Box (2131077I)~#|#~m004542908_sc7JAM Paper #10 Tyvek Business Envelope, 4 1/8" x 9 1/2", White, 250/Box (2131077I)~#|#~m004542907_sc7
Item: 2329380
Model: 2131077I
No reviews yet
Price is $144.49
Unit of measure 250/Box
Free delivery by Mon, Apr 06
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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 Wed, Apr 08
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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 $79.79
Unit of measure 250/Box
Free delivery by Wed, Apr 08
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LUX Peel & Seel Self Seal #10 Invitation Envelope, 4 1/2" x 9 1/2", White, 50/Pack (4860-80W-50)~#|#~sp14807425_sc7
Item: 24260353
Model: 4860-80W-50
Price is $39.79
Unit of measure 50/Pack
Free delivery by Wed, Apr 08
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JAM Paper #10 Business Envelope 4 1/8" x 9 1/2", Dark Green, 25/Pack (21514959)~#|#~A39DBCEE-6D8E-406C-BAB9041C11DCCE40_sc7JAM Paper #10 Business Envelope 4 1/8" x 9 1/2", Dark Green, 25/Pack (21514959)~#|#~5A98AEEA-DBF2-495F-8F0DBF4444796919_sc7
Item: 2633063
Model: 21514959
Price is $18.89
Unit of measure 25/Pack
Delivery by Mon, Apr 06
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JAM Paper Moistenable Glue Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", 250/Pack (92021-250)~#|#~5592B14A-6CE5-44F4-800F2D1421AD3A2C_sc7
Item: 24560681
Model: 92021-250
No reviews yet
Price is $78.99
Unit of measure 250/Pack
Free delivery by Mon, Apr 06
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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 Wed, Apr 08
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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 $34.09
Unit of measure 50/Pack
Delivery by Mon, Apr 06
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LUX 80lb 4 1/8"x9 1/2" Square Flap #10 Envelopes W/Peel&Press, Navy Blue, 500/BX~#|#~m000161287_sc7
Item: 517271
Model: LUX-4860-103500
No reviews yet
Price is $96.39
Free delivery by Wed, Apr 08
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LUX 4 1/8" x 9 1/2" #10 80lbs. Open End Envelopes, Wisteria Purple, 50/Pack~#|#~m000081288_sc7
Item: 281899
Model: LUX-7716-106-50
No reviews yet
Price is $29.19
Unit of measure 50/Pack
Delivery by Wed, Apr 08
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JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", Blue, 500/Pack (5360-13-500)~#|#~sp228873255_sc7
Item: 24578294
Model: 5360-13-500
No reviews yet
Price is $145.09
Unit of measure 500/Pack
Free delivery by Mon, Apr 06
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LUX 60lbs. 4 1/8" x 9 1/2" #10 Business Envelopes, White With Black LUX Lining, 250/BX~#|#~m000081261_sc7
Item: 387904
Model: FLWH4260-02-250
Price is $60.19
Unit of measure 250/Box
Free delivery by Wed, Apr 08
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Pack, Midnight Black (LUX-4260-B-50)~#|#~sp12274947_sc7LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Pack, Midnight Black (LUX-4260-B-50)~#|#~sp12275009_sc7
Item: 24161624
Model: LUX-4260-B-50
No reviews yet
Price is $24.89
Unit of measure 50/Pack
Delivery by Wed, Apr 08
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JAM Paper #10 Policy Business Colored Envelopes, 4 1/8" x 9 1/2", Blue Recycled, 25/Pack (15880)~#|#~m003904550_sc7JAM Paper #10 Policy Business Colored Envelopes, 4 1/8" x 9 1/2", Blue Recycled, 25/Pack (15880)~#|#~m003904549_sc7
Item: 263915
Model: 15880
No reviews yet
Price is $16.69
Unit of measure 25/Pack
Delivery by Mon, Apr 06
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LUX 80lb 4 1/8"x9 1/2" Square Flap Metallic #10 Envelopes, Silver, 500/BX~#|#~m004940415_sc7LUX 80lb 4 1/8"x9 1/2" Square Flap Metallic #10 Envelopes, Silver, 500/BX~#|#~m005823916_sc7
Item: 516498
Model: 5360-06-500
No reviews yet
Price is $144.49
Free delivery by Wed, Apr 08
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LUX 4 1/8" x 9 1/2" #10 70lbs. Open End Envelopes, Smoke Gray, 50/Pack~#|#~m000081283_sc7
Item: 281894
Model: EX7716-22-50
No reviews yet
Price is $30.49
Unit of measure 50/Pack
Delivery by Wed, Apr 08
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 1000/Pack, Navy (LUX42601031000)~#|#~sp12274947_sc7LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 1000/Pack, Navy (LUX42601031000)~#|#~sp12275019_sc7
Item: 24161971
Model: LUX42601031000
Price is $166.09
Unit of measure 1000/Pack
Free delivery by Wed, Apr 08
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LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Gold Metallic, 1000/BX~#|#~m004940416_sc7LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Gold Metallic, 1000/BX~#|#~m005823910_sc7
Item: 384975
Model: 5360-07-1000
No reviews yet
Price is $279.99
Unit of measure 1000/Box
Free delivery by Wed, Apr 08
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JAM Paper #10 Business Envelopes, 4.125 x 9.5, Dark Purple, Bulk 500/Box (563912516H)~#|#~sp132864538_sc7JAM Paper #10 Business Envelopes, 4.125 x 9.5, Dark Purple, Bulk 500/Box (563912516H)~#|#~sp132864537_sc7
Item: 1589705
Model: 563912516H
No reviews yet
Price is $167.79
Unit of measure 500/Box
Free delivery by Mon, Apr 06
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LUX #10 Square Flap (4 1/8 x 9 1/2) 50/Pack, Champagne Metallic (5360-M08-50)~#|#~sp14807455_sc7
Item: 24260283
Model: 5360-M08-50
No reviews yet
Price is $21.09
Unit of measure 50/Pack
Delivery by Wed, Apr 08
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LUX Moistenable Glue #10 Business Envelope, 4 1/8" x 9 1/2", Bright White, 500/Pack (43687-500)~#|#~sp14807479_sc7
Item: 24261001
Model: 43687-500
Price is $39.89
Unit of measure 500/Pack
Free delivery by Wed, Apr 08
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Quality Park Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White Wove, 500/Box (QUA69122)~#|#~sp40322443_sc7Quality Park Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White Wove, 500/Box (QUA69122)~#|#~sp40322442_sc7
Item: QUA69122
Model: QUA69122
Price is $88.29
Unit of measure 500/Box
Free delivery by Thu, Apr 02
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LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Anthracite Metallic Gray, 250/BX~#|#~m004940420_sc7LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Anthracite Metallic Gray, 250/BX~#|#~m005823900_sc7
Item: 385005
Model: 5360-15-250
No reviews yet
Price is $113.69
Unit of measure 250/Box
Free delivery by Wed, Apr 08
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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 $114.89
Unit of measure 250/Box
Free delivery by Wed, Apr 08
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JAM Paper Peel & Seal #10 Business Envelope, 4 1/8" x 9 1/2", Christmas Green, 500/Pack (86555H)~#|#~6D72CF40-FFBC-49D2-943889305B5B19A6_sc7
Item: 1589639
Model: 86555H
No reviews yet
Price is $144.39
Unit of measure 500/Box
Free delivery by Mon, Apr 06
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JAM Paper #10 Policy Metallic Business Envelopes, 4.125 x 9.5, Stardream Gold, 50/Pack (1261602I)~#|#~m003904738_sc7JAM Paper #10 Policy Metallic Business Envelopes, 4.125 x 9.5, Stardream Gold, 50/Pack (1261602I)~#|#~m003904737_sc7
Item: 1588585
Model: 1261602I
No reviews yet
Price is $39.99
Unit of measure 50/Pack
Free delivery by Mon, Apr 06
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LUX 60lbs. 4 1/8" x 9 1/2" #10 Business Envelopes, White With Silver LUX Lining, 250/BX~#|#~m000081264_sc7
Item: 387906
Model: FLWH4260-03-250
No reviews yet
Price is $66.29
Unit of measure 250/Box
Free delivery by Wed, Apr 08
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LUX 4 1/8" x 9 1/2" #10 60lbs. Envelopes, White With Gold LUX Lining, 50/Pack~#|#~m000081262_sc7
LUX 4 1/8" x 9 1/2" #10 60lbs. Envelopes, White With Gold LUX Lining, 50/Pack is Out of stock
Item: 281873
Model: FLWH4260-04-50
Price is $23.29
Unit of measure 50/Pack
LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes W/Glue Closure, Copper Metallic~#|#~m004940418_sc7LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes W/Glue Closure, Copper Metallic~#|#~m005823905_sc7
LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes W/Glue Closure, Copper Metallic is Out of stock
Item: 281919
Model: 5360-11-50
No reviews yet
Price is $39.39
Unit of measure 50/Pack
JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Blue, 50/Pack (900908732I)~#|#~m003905027_sc7JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Blue, 50/Pack (900908732I)~#|#~m003905026_sc7
JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Blue, 50/Pack (900908732I) is Out of stock
Item: 1588597
Model: 900908732I
Price is $20.49
Unit of measure 50/Pack
LUX 60lbs. 4 1/8" x 9 1/2" #10 Regular Envelopes, Blue Parchment, 500/BX~#|#~m000081289_sc7
LUX 60lbs. 4 1/8" x 9 1/2" #10 Regular Envelopes, Blue Parchment, 500/BX is Out of stock
Item: 385531
Model: 6660-12-500
No reviews yet
Price is $95.49
Unit of measure 500/Box
LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes, Quartz Metallic, 50/Pack~#|#~E3C45768-EEBF-435E-BDBE73282E3B9323_sc7LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes, Quartz Metallic, 50/Pack~#|#~C8FFC367-88FA-4BF1-BF994A897CFFE709_sc7
LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes, Quartz Metallic, 50/Pack is Out of stock
Item: 281930
Model: 5360-08-50
Price is $28.19
Unit of measure 50/Pack
JAM Paper #10 Business Translucent Vellum Envelopes, 4.125 x 9.5, Primary Yellow, 50/Pack (PACV356I)~#|#~m002169008_sc7
JAM Paper #10 Business Translucent Vellum Envelopes, 4.125 x 9.5, Primary Yellow, 50/Pack (PACV356I) is Out of stock
Item: 1588554
Model: PACV356I
No reviews yet
Price is $50.89
Unit of measure 50/Pack
Bazic Kraft Self Seal Security Tinted #10 Business Envelope, 4 1/8" x 9 1/2", 500/Pack (BAZ5064)~#|#~sp151423994_sc7
Bazic Kraft Self Seal Security Tinted #10 Business Envelope, 4 1/8" x 9 1/2", 500/Pack (BAZ5064) is Out of stock
Item: 24516828
Model: BAZ5064
No reviews yet
Price is $43.09
Unit of measure 500/Pack

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.