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Staples QuickStrip EasyClose Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST50312-CC)~#|#~s1223633_sc7Staples QuickStrip EasyClose Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST50312-CC)~#|#~s1223639_sc7
Item: 787385
Model: ST50312-CC
Price is $27.69
Unit of measure 500/Box Price per unit $0.06/Envelope
Delivery by Fri, Dec 12
30-min pickup
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Staples QuickStrip EasyClose Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (ST50308-CC)~#|#~04BF5D88-0DCB-4C46-8A97D67F61C726B8_sc7Staples QuickStrip EasyClose Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (ST50308-CC)~#|#~F7FF46B5-6BB8-466E-99786E7BF515AACC_sc7
Item: 394057
Model: ST50308-CC
Price is $10.49
Unit of measure 100/Box Price per unit $0.10/Envelope
Delivery by Fri, Dec 12
30-min pickup
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Staples #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST50301-CC)~#|#~FB3B930A-0912-433C-8C98F4CBCC197392_sc7Staples #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST50301-CC)~#|#~10537A48-505B-4914-BBD96AEB2E3575E9_sc7
Item: 187013
Model: ST50301-CC
Price is $20.99
Unit of measure 500/Box Price per unit $0.04/Envelope
Delivery by Fri, Dec 12
30-min pickup
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Mead Security Tinted #10 Business Envelopes, 4-1/8" x 9-1/2", White, 40/Pack (75214)~#|#~sp130849571_sc7Mead Security Tinted #10 Business Envelopes, 4-1/8" x 9-1/2", White, 40/Pack (75214)~#|#~sp130849569_sc7
Mead Security Tinted #10 Business Envelopes, 4-1/8" x 9-1/2", White, 40/Pack (75214) is Clearance
61% off of Mead Security Tinted #10 Business Envelopes, 4-1/8" x 9-1/2", White, 40/Pack (75214)
Item: 300053
Model: 75214
Price is $1.20Regular price was $3.15, You save 61%
Unit of measure 40/Pack
Delivery by Fri, Dec 12
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JAM Paper Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Pack (75747-100)~#|#~sp228873487_sc7
Item: 24578376
Model: 75747-100
Price is $11.39
Unit of measure 100/Pack
Delivery by Wed, Dec 17
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Staples Self Seal Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST511289-CC)~#|#~C1DE4A05-5BF1-4CB6-AF706FC6A1C4D67B_sc7Staples Self Seal Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST511289-CC)~#|#~73F89DCA-30B6-46FA-B098CD35CE9CBEC8_sc7
Item: 511289
Model: ST511289-CC
Price is $30.99
Unit of measure 500/Box Price per unit $0.06/Envelope
Delivery by Fri, Dec 12
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Staples Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST50302-CC)~#|#~DA5D596D-5974-4D63-A0CB649D25EA95D4_sc7Staples Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST50302-CC)~#|#~8A08070E-2CC5-4140-95320C7211E7CD89_sc7
Item: 200519
Model: ST50302-CC
Price is $28.19
Unit of measure 500/Box Price per unit $0.06/Envelope
Delivery by Fri, Dec 12
30-min pickup
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Mead Press It Seal It #10 Security Envelopes, 4 1/8" x 9 1/2", White, 45/Pack (MEA75026)~#|#~m007116469_sc7
Item: 2696277
Model: 75026
Price is $6.19
Unit of measure 45/Pack
Delivery by Fri, Dec 12
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Staples QuickStrip EasyClose Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", Assorted Colors, 50/Pack (ST23431-CC)~#|#~5C561CBB-1963-4D64-A85EEA57A8AF559B_sc7Staples QuickStrip EasyClose Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", Assorted Colors, 50/Pack (ST23431-CC)~#|#~F7756BA6-CC51-48E2-AF9D153F6450886B_sc7
Item: 122725
Model: ST23431-CC
Price is $11.49
Unit of measure 50/Pack
Delivery by Fri, Dec 12
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Staples EasyClose #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (50306)~#|#~s1223617_sc7Staples EasyClose #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (50306)~#|#~s1223598_sc7
Item: 381912
Model: ST50306-CC
Price is $32.19
Unit of measure 500/Box Price per unit $0.06/Envelope
Delivery by Fri, Dec 12
30-min pickup
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JAM Paper Peel & Seal #10 Business Envelope, 4 1/8" x 9 1/2", Christmas Red, 50/Pack (11789I)~#|#~sp36388124_sc7JAM Paper Peel & Seal #10 Business Envelope, 4 1/8" x 9 1/2", Christmas Red, 50/Pack (11789I)~#|#~sp36388044_sc7
Item: 1588623
Model: 11789I
Price is $16.99
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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Staples QuickStrip EasyClose Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (ST50307-CC)~#|#~888BE6B1-31CD-47C0-A8C1657439776121_sc7Staples QuickStrip EasyClose Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (ST50307-CC)~#|#~DDE921C8-55FF-44C0-B2C5590B29C8AE44_sc7
13% off of Staples QuickStrip EasyClose Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (ST50307-CC)
Item: 394053
Model: ST50307-CC
Price is $9.99, Regular price was $11.49, You save 13%
Unit of measure 100/Box Price per unit $0.10/Envelope
Delivery by Fri, Dec 12
30-min pickup
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Staples Premium Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", Ivory, 500/Box (918211/19420)~#|#~517B8DD0-01E3-41A2-BAA178C02B46F29A_sc7Staples Premium Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", Ivory, 500/Box (918211/19420)~#|#~F3E31A83-0C8D-4000-AD7AB8B4723E8F6D_sc7
Item: 918211
Model: ST918211-CC
Price is $39.69
Unit of measure 500/Box Price per unit $0.08/Envelope
Free delivery by Fri, Dec 12
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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 $7.99
Unit of measure 25/Pack
Delivery by Tue, Dec 16
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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 $22.69
Unit of measure 50/Box
Delivery by Fri, Dec 12
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Staples QuickStrip EasyClose #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (394047N)~#|#~874C076E-30E1-4019-BCAD79AF3EE8E1F6_sc7Staples QuickStrip EasyClose #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (394047N)~#|#~1ED15A4C-99F0-44F1-B454A42378FDEB93_sc7
Item: 394047
Model: ST394047N-CC
Price is $11.49
Unit of measure 100/Box
Delivery by Fri, Dec 12
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JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Dark Purple, 50/Pack (563912516I)~#|#~sp132864355_sc7JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Dark Purple, 50/Pack (563912516I)~#|#~sp132864354_sc7
Item: 1588603
Model: 563912516I
No reviews yet
Price is $20.49
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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Staples Gummed #10 Envelope, 4-1/8" x 9-1/2", White, 2500/CT (50301)~#|#~FB3B930A-0912-433C-8C98F4CBCC197392_sc7Staples Gummed #10 Envelope, 4-1/8" x 9-1/2", White, 2500/CT (50301)~#|#~580F8D8E-EB73-497E-8CACEB65C3A80A49_sc7
Item: 2792358
Model: 50301
Price is $101.59
Unit of measure 2500/Carton
Free delivery by Fri, Dec 12
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Mead Self Seal #10 Business Envelope 4 1/8" x 9 1/2", White, 50/Pack (75024)~#|#~BE447AF8-7086-425C-BD8A2CBB0ECB5441_sc7
Item: 24239449
Model: 75024
Price is $6.19
Unit of measure 50/Pack
Delivery by Fri, Dec 12
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LUX Peel & Seel Self Seal #10 Business Envelope, 4 1/2" x 9 1/2", White, 500/Pack  (75746-500)~#|#~sp14807440_sc7
Item: 24260640
Model: 75746-500
No reviews yet
Price is $112.89
Unit of measure 500/Pack
Free delivery by Mon, Dec 22
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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 $29.99
Unit of measure 50/Pack
Delivery by Mon, Dec 22
30-min pickup
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JAM Paper #10 Business Envelope, 4 1/8” x 9 1/2”, White, 250/Box (35532IF)~#|#~sp4800450_sc7JAM Paper #10 Business Envelope, 4 1/8” x 9 1/2”, White, 250/Box (35532IF)~#|#~sp4800449_sc7
Item: 2633054
Model: 35532IF
Price is $26.09
Unit of measure 250/Box
Delivery by Wed, Dec 17
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Staples Tear-Resistant EasyClose Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (21573)~#|#~9D61BF36-F926-4189-B751F8BE3F66B083_sc7Staples Tear-Resistant EasyClose Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 100/Box (21573)~#|#~B2C81072-7CD5-46C7-9F58781765042EC9_sc7
Item: 329841
Model: ST21573-CC
Price is $27.79
Unit of measure 100/Box Price per unit $0.28/Envelope
Delivery by Fri, Dec 12
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Staples Premium Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (19264VP)~#|#~E65CF8B4-3BE9-446A-BF728FF671907089_sc7Staples Premium Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (19264VP)~#|#~F348EB53-3B4F-481F-A4AD4778B99026D6_sc7
Item: 321554
Model: ST19264VP-CC
Price is $27.69
Unit of measure 500/Box Price per unit $0.06/Envelope
Delivery by Fri, Dec 12
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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: 813442
Model: QUA69122
Price is $88.29
Unit of measure 500/Box Price per unit $0.18/Envelope
Free delivery by Fri, Dec 12
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Staples Brand Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (570240/99294)~#|#~1D22CEC3-EF53-4FB5-A5BA1C460E01583A_sc7Staples Brand Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (570240/99294)~#|#~1DDEEC0B-AA88-4AF4-80F52C96DE579C95_sc7
Item: 570240
Model: ST570240-CC
Price is $31.49
Unit of measure 500/Box Price per unit $0.06/Envelope
Delivery by Fri, Dec 12
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Southworth Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", Ivory, 250/Box (J404I-10)~#|#~s1174993_sc7Southworth Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", Ivory, 250/Box (J404I-10)~#|#~s1174994_sc7
Item: 581514
Model: J404I-10
Price is $50.29
Unit of measure 250/Box
Free delivery by Fri, Dec 12
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", White, 100/Pack (35532I)~#|#~m003904588_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", White, 100/Pack (35532I)~#|#~m003910246_sc7
Item: 2103314
Model: 35532I
Price is $17.09
Unit of measure 100/Pack
Delivery by Wed, Dec 17
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JAM Paper #10 Window Envelope, 4 1/8" x 9 1/2", White, 100/Pack (1633173I)~#|#~sp58557833_sc7JAM Paper #10 Window Envelope, 4 1/8" x 9 1/2", White, 100/Pack (1633173I)~#|#~sp137085580_sc7
Item: 2103312
Model: 1633173I
Price is $17.09
Unit of measure 100/Pack
Delivery by Wed, Dec 17
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Southworth Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", White, 250/Box (J554-10)~#|#~s1174989_sc7Southworth Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", White, 250/Box (J554-10)~#|#~s1174988_sc7
Item: 719286
Model: J554-10
Price is $45.19
Unit of measure 250/Box
Free delivery by Fri, Dec 12
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Southworth Cotton #10 Inter-Departmental Envelope 4 1/8" x 9 1/2", Ivory, 50/Pack (R14I-10L)~#|#~73A5B5AE-9689-49DF-A6731CC4CC5A23E0_sc7Southworth Cotton #10 Inter-Departmental Envelope 4 1/8" x 9 1/2", Ivory, 50/Pack (R14I-10L)~#|#~ACCBFA9E-8730-4CB0-A232F9AC4E6819BA_sc7
Item: 619359
Model: R14I-10L
Price is $25.29
Unit of measure 50/Pack
Delivery by Fri, Dec 12
30-min pickup
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Mead #10 Business Envelopes, 4-1/8" x 9-1/2", White, 50/Pack (75050)~#|#~sp130850205_sc7Mead #10 Business Envelopes, 4-1/8" x 9-1/2", White, 50/Pack (75050)~#|#~sp130850204_sc7
Item: 294470
Model: 75050
Price is $5.19
Unit of measure 50/Pack
Delivery by Fri, Dec 12
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JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Red, 50/Pack (67161I)~#|#~sp112110506_sc7JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Red, 50/Pack (67161I)~#|#~sp112110505_sc7
Item: 1588624
Model: 67161I
Price is $16.99
Unit of measure 50/Pack
Delivery by Wed, Dec 17
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Southworth Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", Ivory, 250/Box (J564-10)~#|#~s1174985_sc7Southworth Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", Ivory, 250/Box (J564-10)~#|#~s1174984_sc7
Item: 719294
Model: J564-10
Price is $60.29
Unit of measure 250/Box
Free delivery by Fri, Dec 12
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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 $78.99
Unit of measure 500/Box
Free delivery by Fri, Dec 12
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Southworth Cotton #10 Inter-Departmental Envelope 4 1/8" x 9 1/2", White, 50/Pack (R14-10L)~#|#~s1174945_sc7Southworth Cotton #10 Inter-Departmental Envelope 4 1/8" x 9 1/2", White, 50/Pack (R14-10L)~#|#~s1174943_sc7
Item: 619358
Model: R14-10L
Price is $20.99
Unit of measure 50/Pack
Delivery by Fri, Dec 12
30-min pickup
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Great Papers! Peppermint and Candy Cane Party Holiday #10 Invitation Envelope, 9.5" x 4.125", 40/Pack (2025041)~#|#~03CA3256-FDC2-4268-A2E964281E557A0B_sc7Great Papers! Peppermint and Candy Cane Party Holiday #10 Invitation Envelope, 9.5" x 4.125", 40/Pack (2025041)~#|#~41AA744D-D89D-4FB5-A50C17E7727BB532_sc7
Great Papers! Peppermint and Candy Cane Party Holiday #10 Invitation Envelope, 9.5" x 4.125", 40/Pack (2025041) is New at Staples
Item: 24662407
Model: 2025041
No reviews yet
Price is $12.99
Delivery by Tue, Dec 23
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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.