Letter Envelopes

JAM Paper #10 Policy Metallic Business Envelopes, 4 1/8" x 9 1/2", Stardream Gold, 25/Pack (1261602)~#|#~m003904738_sc7JAM Paper #10 Policy Metallic Business Envelopes, 4 1/8" x 9 1/2", Stardream Gold, 25/Pack (1261602)~#|#~m003904737_sc7
Item: 261973
Model: 1261602
No reviews yet
Price is $23.59
Unit of measure 25/Pack
Delivery by Fri, Apr 03
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LUX 4 1/8" x 9 1/2" #10 80lbs. Open End Envelopes, Navy Blue, 50/Pack~#|#~m000081279_sc7
Item: 281890
Model: LUX-7716-103-50
No reviews yet
Price is $29.19
Unit of measure 50/Pack
Delivery by Wed, Apr 08
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LUX 80lb 4 1/8"x9 1/2" Open End #10 Envelopes, Navy Blue, 500/BX~#|#~m000081279_sc7
Item: 517160
Model: LUX-7716-103500
No reviews yet
Price is $206.69
Free delivery by Wed, Apr 08
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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 $102.79
Unit of measure 250/Box
Free delivery by Wed, Apr 08
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JAM Paper #10 Business Translucent Vellum Envelopes, 4.125 x 9.5, Primary Blue, 50/Pack (PACV357I)~#|#~m003905168_sc7JAM Paper #10 Business Translucent Vellum Envelopes, 4.125 x 9.5, Primary Blue, 50/Pack (PACV357I)~#|#~m003905167_sc7
Item: 1588572
Model: PACV357I
No reviews yet
Price is $39.99
Unit of measure 50/Pack
Free delivery by Fri, Apr 03
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LUX 80lbs. 4 1/8" x 9 1/2" Metallic Square Flap Envelopes, Anthracite Metallic Gray, 1000/BX~#|#~m004940420_sc7LUX 80lbs. 4 1/8" x 9 1/2" Metallic Square Flap Envelopes, Anthracite Metallic Gray, 1000/BX~#|#~m005823900_sc7
Item: 385004
Model: 5360-15-1000
No reviews yet
Price is $270.81
Unit of measure 1000/Box
Free delivery by Wed, Apr 08
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LUX 70lb 4 1/8"x9 1/2" Open End #10 Envelopes, Grocery Bag Brown, 250/BX~#|#~m000081273_sc7
Item: 516427
Model: 7716-GB-250
No reviews yet
Price is $78.29
Free delivery by Wed, Apr 08
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JAM Paper #10 Business Strathmore Envelopes, 4.125 x 9.5, Bright White Wove, Bulk 1000/Carton (64933B)~#|#~sp112110502_sc7JAM Paper #10 Business Strathmore Envelopes, 4.125 x 9.5, Bright White Wove, Bulk 1000/Carton (64933B)~#|#~sp112110501_sc7
Item: 262630
Model: 64933B
No reviews yet
Price is $227.69
Unit of measure 1000/Carton
Free delivery by Fri, Apr 03
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Green, 1000/Carton (15862B)~#|#~sp111772450_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Green, 1000/Carton (15862B)~#|#~sp111772449_sc7
Item: 261287
Model: 15862B
No reviews yet
Price is $249.29
Unit of measure 1000/Carton
Free delivery by Fri, Apr 03
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JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Dark Red, 500/Pack (31511298H)~#|#~m002168474_sc7
Item: 1589630
Model: 31511298H
No reviews yet
Price is $152.99
Unit of measure 500/Box
Free delivery by Fri, Apr 03
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JAM Paper #10 Business Foil Envelopes with Self-Adhesive Closure, 4.125 x 9.5, Silver, 100/Pack (01323306B)~#|#~m004671920_sc7JAM Paper #10 Business Foil Envelopes with Self-Adhesive Closure, 4.125 x 9.5, Silver, 100/Pack (01323306B)~#|#~m004671919_sc7
Item: 260947
Model: 01323306B
No reviews yet
Price is $127.99
Unit of measure 100/Box
Free delivery by Fri, Apr 03
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LUX 70lb 4 1/8"x9 1/2" Square Flap Linen Envelopes, White, 500/BX~#|#~m000161371_sc7
Item: 513618
Model: 4860-WLI-500
No reviews yet
Price is $107.39
Free delivery by Wed, Apr 08
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JAM Paper #10 Booklet Foil Envelopes with Self-Adhesive Closure, 4.125 x 9.5, Blue, 25/Pack (1327705)~#|#~284E4566-35DF-4D5A-BBB003391DDD875E_sc7
Item: 260899
Model: 1327705
No reviews yet
Price is $46.99
Unit of measure 25/Pack
Free delivery by Fri, Apr 03
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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 Fri, Apr 03
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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 Fri, Apr 03
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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, Apr 03
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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 Fri, Apr 03
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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 Fri, Apr 03
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JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 1000/Pack (75746-1M)~#|#~sp228873583_sc7JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 1000/Pack (75746-1M)~#|#~sp228873582_sc7
Item: 24578649
Model: 75746-1M
No reviews yet
Price is $142.89
Unit of measure 1000/Pack
Free delivery by Fri, Apr 03
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JAM Paper #10 Business Foil Envelopes with Self-Adhesive Closure, 4.125 x 9.5, Gold, 100/Pack (01323305B)~#|#~m000067474_sc7
Item: 260946
Model: 01323305B
No reviews yet
Price is $127.99
Unit of measure 100/Box
Free delivery by Fri, Apr 03
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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 $93.39
Free delivery by Wed, Apr 08
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JAM Paper #10 Metallic Business Envelopes, 4.125 x 9.5, Stardream Silver, 25/Pack (SD5360 06)~#|#~m004672467_sc7JAM Paper #10 Metallic Business Envelopes, 4.125 x 9.5, Stardream Silver, 25/Pack (SD5360 06)~#|#~m004672466_sc7
Item: 261992
Model: SD5360 06
No reviews yet
Price is $33.99
Unit of measure 25/Pack
Delivery by Fri, Apr 03
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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 Fri, Apr 03
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JAM Paper #10 Policy Business Colored Envelopes, 4.125 x 9.5, Blue Recycled, 50/Pack (15880I)~#|#~m003904550_sc7JAM Paper #10 Policy Business Colored Envelopes, 4.125 x 9.5, Blue Recycled, 50/Pack (15880I)~#|#~m003904549_sc7
Item: 1588700
Model: 15880I
No reviews yet
Price is $26.09
Unit of measure 50/Pack
Delivery by Fri, Apr 03
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LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes W/Glue Closure, Vista Metallic Blue~#|#~m000081324_sc7
Item: 281935
Model: 5360-29-50
No reviews yet
Price is $27.19
Unit of measure 50/Pack
Delivery by Wed, Apr 08
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LUX 80lbs. 4 1/8" x 9 1/2" #10 Open End Envelopes, Bright White, 1000/BX (7535-1000)~#|#~DB7F205D-9E6A-46E0-8491E1C84AEFDB14_sc7LUX 80lbs. 4 1/8" x 9 1/2" #10 Open End Envelopes, Bright White, 1000/BX (7535-1000)~#|#~22EEA5ED-E9AD-40AE-B3AF07777DC2DF1A_sc7
Item: 385671
Model: 7535-1000
No reviews yet
Price is $215.59
Unit of measure 1000/Box
Free delivery by Wed, Apr 08
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 500/Pack, Sunflower (LUX-4260-12-500)~#|#~sp12274947_sc7LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 500/Pack, Sunflower (LUX-4260-12-500)~#|#~sp12275007_sc7
Item: 24162059
Model: LUX-4260-12-500
No reviews yet
Price is $98.79
Unit of measure 500/Pack
Free delivery by Wed, Apr 08
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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 Fri, Apr 03
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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 $29.49
Unit of measure 50/Pack
Delivery by Fri, Apr 03
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LUX 4 1/8" x 9 1/2" #10 60lbs. Bright Regular Envelopes, Green, 50/Pack~#|#~m000081292_sc7
Item: 281903
Model: 4260-12-50
Price is $43.19
Unit of measure 50/Pack
Free delivery by Wed, Apr 08
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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
Price is $20.49
Unit of measure 50/Pack
Delivery by Fri, Apr 03
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LUX #10 Square Flap Invitation Envelopes (4 1/8 x 9 1/2) 50/Pack, Limelight (LUX-4860-101-50)~#|#~sp14807404_sc7
Item: 24260863
Model: LUX-4860-101-50
No reviews yet
Price is $19.69
Unit of measure 50/Pack
Delivery by Wed, Apr 08
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LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes W/Glue, Azalea Metallic Pink, 250/BX~#|#~m004940424_sc7LUX 80lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes W/Glue, Azalea Metallic Pink, 250/BX~#|#~m005823902_sc7
Item: 385026
Model: 5360-24-250
No reviews yet
Price is $159.39
Unit of measure 250/Box
Free delivery by Wed, Apr 08
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LUX 70lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Grocery Bag Brown, 1000/BX~#|#~m004940396_sc7LUX 70lbs. 4 1/8" x 9 1/2" #10 Square Flap Envelopes, Grocery Bag Brown, 1000/BX~#|#~m005823987_sc7
Item: 384582
Model: 4860-GB-1000
No reviews yet
Price is $214.69
Unit of measure 1000/Box
Free delivery by Wed, Apr 08
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JAM Paper Moistenable Glue Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", 50/Pack (92019-50)~#|#~9AD422BF-4262-4F9F-A002BDC822F193C3_sc7
Item: 24560682
Model: 92019-50
No reviews yet
Price is $14.89
Unit of measure 50/Pack
Delivery by Fri, Apr 03
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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 $9.59
Unit of measure 25/Pack
Delivery by Fri, Apr 03
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JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Aqua, 50/Pack (21520986I)~#|#~m002934469_sc7JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", Aqua, 50/Pack (21520986I)~#|#~m003904907_sc7
Item: 1588687
Model: 21520986I
No reviews yet
Price is $22.99
Unit of measure 50/Pack
Delivery by Fri, Apr 03
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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 $141.49
Unit of measure 500/Pack
Free delivery by Fri, Apr 03
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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 Fri, Apr 03
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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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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.