Price is $22.09
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Over 30
Price is $219.99
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Over 30
Price is $76.99
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Over 30
Price is $16.59
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Letter Envelopes
Best Match
List view
Pick up and Delivery
Envelope Size
Envelope Type
Envelope Closure
Envelope Number
Envelope Material
Item # : 515097
Model # : 7716-WLI-250
LUX 80lb. White Linen #10 Open End Envelopes (4 1/8 x 9 1/2) are perfect for mailing checks, invoices, letterhead, personal letters, statements, and direct mail.
- 250/box
- White linen
Price is $106.39
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Over 30
Item # : 281874
Model # : FLWH4260-01-50
Lux® Size 10 square flap envelope measures 4 1/8" x 9 1/2", is perfectly sized for elegant affairs as well as business purposes and comes in white color with red lux lining.
- #10 Square Flap Lined Envelopes (4 1/8 x 9 1/2)
- Comes in White w/Red LUX Lining, 60lb. Text Paper
Price is $27.99
Unit of measure 50/Pack
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Over 30
Item # : 24052266
Model # : 31515415I
- Color: Red Base
- Size: #10 (4.13 x 9.5 inches)
Price is $30.49
Unit of measure 50/Pack
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Over 30
Item # : 24260353
Model # : 4860-80W-50
LUX #10 Square Flap Envelopes (4 1/8 x 9 1/2) w/Peel & Press™ in 80lb. White w/Peel & Press™ are perfect for mailing Checks, Invoices, Letterhead, Personal Letters, Statements, Direct Mail and more!
- Dimensions: 4.125"L x 9.5"W
- Comes in 80lb. White w/Peel & Press™
Price is $38.79
Unit of measure 50/Pack
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Over 30
Item # : 24260629
Model # : F-4560-B-50
LUX #10 Square Flap Envelopes (4 1/8 x 9 1/2) in Midnight Black are perfect for mailing Checks, Invoices, Letterhead, Personal Letters, Statements, Direct Mail and more!
- Dimensions: 4.125"L x 9.5"W
- Comes in Midnight Black
Price is $22.09
Unit of measure 50/Pack
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Over 30
Item # : 24560680
Model # : 92021-1M
- Color: Bright White w/ Security Tint
- Size: #10 (4 1/8 x 9 1/2)
Price is $219.99
Unit of measure 1000/Pack
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Over 30
Item # : 281876
Model # : EX7716-27-50
LUX® Size 10 open end envelope in avocado color measures 4 1/8" x 9 1/2" and is perfectly sized to send flat, heavy materials, numerous small items like coins, catalogs or jumbo cards.
- #10 Open End Envelopes are perfect for mailing checks/invoices/letterhead/personal letters/statements/direct mail
- Comes in Avocado, 70lb. Text Paper
Price is $51.69
Unit of measure 50/Pack
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Over 30
Item # : 24260638
Model # : 65896-50
LUX #10 Regular Envelopes (4 1/8 x 9 1/2) in Pastel Green are perfect for mailing Checks, Invoices, Letterhead, Personal Letters, Statements, Direct Mail and more!
- Dimensions: 4.125"L x 9.5"W
- Comes in Pastel Green
Price is $42.89
Unit of measure 50/Pack
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Over 30
Item # : 2329434
Model # : 2131077C
- Business Envelope, #10
- Dimensions: 4 1/8" x 9 1/2"
Price is $28.69
Unit of measure 50/Pack
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Over 30
Item # : 24260421
Model # : EX4860-22-50
LUX #10 Square Flap Envelopes (4 1/8 x 9 1/2) in Smoke are perfect for mailing Checks, Invoices, Letterhead, Personal Letters, Statements, Direct Mail and more!
- Dimensions: 4.125"L x 9.5"W
- Comes in Smoke
Price is $25.39
Unit of measure 50/Pack
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Over 30
Item # : 261157
Model # : 71091
JAM Paper® Size #10 4 1/8" x 9 1/2" Brite hue ultra lime green paper envelope is perfect for greeting cards, invitations, weddings or any announcement and has a square gummed flap.
- Size: #10 (4 1/8" x 9 1/2")
- Closure: Gum
Price is $10.09
Unit of measure 25/Pack
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Over 30
Item # : 1588572
Model # : PACV357I
The JAM Paper #10 (4.13" x 9.5") translucent vellum envelope makes a great option for distributing official materials, sending mails or filing important papers.
- Product Type: Translucent Envelope
- Primary blue paper envelope
Price is $39.99
Unit of measure 50/Pack
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Over 30
Item # : 24260678
Model # : 75747-500
LUX #10 Regular Envelopes (4 1/8 x 9 1/2) in White w/ Sec Tint, P&S are perfect for mailing Checks, Invoices, Letterhead, Personal Letters, Statements, Direct Mail and more!
- Dimensions: 4.125"L x 9.5"W
- Comes in White w/ Sec Tint, P&S
Price is $110.09
Unit of measure 500/Pack
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Over 30
Item # : 261457
Model # : 36396438
- Perfect for baby showers and birth announcements
- Size: #10 (4 1/8" x 9 1/2")
Price is $18.99
Unit of measure 25/Pack
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Over 30
Item # : 281903
Model # : 4260-12-50
Lux® Size 10 regular envelope in bright green color is perfect for different types of personal or business related applications and measures 4 1/8" x 9 1/2".
- #10 Regular Envelopes are perfect for mailing checks/invoices/letterhead/personal letters/statements/direct mail
- Comes in Bright Green, 60lb. Text Paper
Price is $42.09
Unit of measure 50/Pack
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Over 30
Item # : 261633
Model # : 563912516
- Size: #10 (4 1/8" x 9 1/2")
- Closure: Gum
Price is $18.99
Unit of measure 25/Pack
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Over 30
Item # : 262547
Model # : 34992
JAM Paper® Size #10 Natural white wove strathmore paper envelope in a carton of 25 has dimension of 4 1/8" x 9 1/2" and is perfect for greeting cards, invitations, weddings or any announcements.
- Size: #10 (4 1/8" x 9 1/2")
- Closure: Gum
Price is $19.99
Unit of measure 25/Pack
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Over 30
Item # : 1588674
Model # : 3961300I
The JAM Paper #10 (4.13" x 9.5") policy envelope is a stylish option for people who are not too keen on using white or manila envelopes.
- Product Type: Policy Envelope
- Baby blue paper envelope
Price is $22.99
Unit of measure 50/Pack
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Over 30
Item # : 261583
Model # : 900921796
- Size: #10 (4 1/8" x 9 1/2")
- Closure: Gum
Price is $19.99
Unit of measure 25/Pack
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Over 30
Item # : 262515
Model # : 191170
JAM Paper® Size #10 Strathmore natural white linen envelopes in a pack of 25 is perfect for wedding, birthday, holiday or other event and is made from 30% recycled paper.
- Size: #10 (4 1/8" x 9 1/2")
- Closure: Gum
Price is $19.99
Unit of measure 25/Pack
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Over 30
Item # : 24578435
Model # : 5360-13-50
- #10 Square Flap Envelopes
- 4 1/8 in x 9 1/2 in
Price is $21.19
Unit of measure 50/Pack
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Over 30
Item # : 261728
Model # : LEBA367B
- Size: #10 (4 1/8" x 9 1/2")
- Closure: Gum
Price is $226.69
Unit of measure 1000/Carton
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Over 30
Item # : 24260549
Model # : 60190-50
LUX #10 Regular Envelopes (4 1/8 x 9 1/2) in Pastel Gray are perfect for mailing Checks, Invoices, Letterhead, Personal Letters, Statements, Direct Mail and more!
- Dimensions: 4.125"L x 9.5"W
- Comes in Pastel Gray
Price is $52.69
Unit of measure 50/Pack
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Over 30
Item # : 262564
Model # : 191165
JAM Paper® Size #10 Ivory wove strathmore paper envelope in a carton of 25 has dimension of 4 1/8" x 9 1/2" and is perfect for greeting cards, invitations, weddings or any announcements.
- Size: #10 (4 1/8" x 9 1/2")
- Closure: Gum
Price is $19.99
Unit of measure 25/Pack
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Over 30
Item # : 1588687
Model # : 21520986I
The JAM Paper #10 (4.13" x 9.5") policy envelope is a stylish option for people who are not too keen on using white or manila envelopes.
- Product Type: Policy Envelope
- Aqua recycled paper envelope
Price is $22.99
Unit of measure 50/Pack
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Over 30
Item # : 263915
Model # : 15880
JAM Paper® Size 10 Open end policy brite hue blue recycled paper envelope in a pack of 25 has dimension of 4 1/8" x 9 1/2" and is perfect for greeting cards, invitations or other announcements.
- Perfect for Christmas and holiday cards
- Size: #10 (4 1/8" x 9 1/2")
Price is $16.69
Unit of measure 25/Pack
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Over 30
Item # : 384974
Model # : 5360-06-250
LUX® Size 10 square flap envelope in silver metallic color of measuring 4 1/8" x 9 1/2" forms the right choice for personal or corporate business use and is sold as 250 per box.
- #10 Square Flap Envelopes are perfect for mailing checks/invoices/letterhead/personal letters/statements/direct mail
- Comes in Silver Metallic, 80lb. Text Paper
Price is $136.59
Unit of measure 250/Box
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Over 30
Item # : 515049
Model # : 7716-WPC-500
LUX 80lb. White - 100% Recycled #10 Open End Envelopes (4 1/8 x 9 1/2) are perfect for mailing checks, invoices, letterhead, personal letters, statements, and direct mail.
- 500/box
- White
Price is $144.69
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Over 30
Item # : 1589262
Model # : 36396438H
- Product Type: Dark Base Envelope
- Dark gray base paper envelope
Price is $173.69
Unit of measure 500/Box
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Over 30
Item # : 384583
Model # : 4860-GB-250
LUX® Size 10 Square flap envelope in grocery bag color measuring 4 1/8 " x 9 1/2" forms a perfect choice for personal or corporate business use and is sold as 250 per box.
- #10 Square Flap Envelopes are perfect for mailing checks/invoices/letterhead/personal letters/statements/direct mail
- Comes in Grocery Bag, 70lb. Text Paper
Price is $91.49
Unit of measure 250/Box
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Over 30
Item # : 260901
Model # : 1323308
JAM Paper® 4" x 9 1/2" Size 10 Booklet green foil envelope in a pack of 25 is perfect for greeting cards, invitations, weddings or any announcements and is made up of strong plastic foil.
- Size: #10 (4" x 9 1/2")
- Closure: Peel and seal
Price is $41.89
Unit of measure 25/Pack
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Over 30
Item # : 2633062
Model # : 21514959I
JAM Paper #10 Business Envelopes are great for mailing both personal and business letters and documents.
- Size: #10 (4.13 x 9.5 inches)
- Quantity: 50 Envelopes per Pack
Price is $29.99
Unit of measure 50/Pack
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Over 30
Item # : 384975
Model # : 5360-07-1000
LUX® Size 10 square flap envelope in gold metallic color measuring 4 1/8" x 9 1/2" forms an ideal choice for personal or corporate business purposes and is sold as 1000 per box.
- #10 Square Flap Envelopes are perfect for mailing checks/invoices/letterhead/personal letters/statements/direct mail
- Comes in Gold Metallic, 80lb. Text Paper
Price is $299.49
Unit of measure 1000/Box
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Over 30
Item # : 1588604
Model # : V01218I
- Product Type: Policy Envelope
- Black linen recycled paper envelope
Price is $25.39
Unit of measure 50/Pack
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Over 30
Item # : 24162073
Model # : LUX-4260-11-50
LUX #10 Regular Envelopes (4 1/8 x 9 1/2) are perfect for Checks, Invoices, Letterhead, Letters, Statements
- Dimensions: 4 1/8"L x 9 1/2"W
- Sold 50 per box
Price is $22.19
Unit of measure 50/Pack
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Over 30
Item # : 1589641
Model # : 15880H
- Product Type: Recycled Envelope
- Blue recycled paper envelope
Price is $202.99
Unit of measure 500/Box
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Over 30
Item # : 281892
Model # : EX7716-18-50
LUX® Size 10 open end envelope in ruby red color measures 4 1/8" x 9 1/2" and is perfectly sized to send flat, heavy materials, numerous small items like coins, catalogs or jumbo cards.
- #10 Open End Envelopes are perfect for mailing checks/invoices/letterhead/personal letters/statements/direct mail
- Comes in Ruby Red, 80lb. Text Paper
Price is $41.49
Unit of measure 50/Pack
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Over 30
Item # : 24604525
Model # : 7716-WLI-50
- #10 Open End Envelopes (4 1/8" x 9 1/2")
- Color: 80lb.. White Linen - About as classy a look as you can get.
Price is $13.95
Unit of measure 50/Pack
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Over 30
Item # : 386342
Model # : EX4860-22-250
LUX® Size 10 square flap envelope in smoke color of size 4 1/8" x 9 1/2" forms the right choice for elegant affairs or business purposes and is sold as 250 per box.
- #10 Square Flap Envelopes are perfect for mailing checks/invoices/letterhead/personal letters/statements/direct mail
- Comes in Smoke, 80lb. Text Paper
Price is $69.39
Unit of measure 250/Box
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Over 30
Item # : 24261325
Model # : EX4860-12-50
LUX #10 Square Flap Envelopes (4 1/8 x 9 1/2) in Sunflower are perfect for mailing Checks, Invoices, Letterhead, Personal Letters, Statements, Direct Mail and more!
- Dimensions: 4.125"L x 9.5"W
- Comes in Sunflower
Price is $22.09
Unit of measure 50/Pack
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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:
- 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.
- In the top right corner, you will need to place adequate postage for the envelope to reach its destination.
- 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.
- Place the envelope in a USPS mailbox or bring it to a post office.