Letter Envelopes

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 Fri, Oct 10
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Box, White w/ Simple Seal~#|#~m004063975_sc7
Item: 2147426
Model: 28726-50
No reviews yet
Price is $31.19
Unit of measure 50/Pack
Delivery by Mon, Oct 20
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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, Oct 10
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Quality Park Redi-Strip Self Seal Security Tinted #10 Business Envelope 4 1/8" x 9 1/2", White, 1000/Carton (QUA69122B)~#|#~sp108671159_sc7
Item: 2623287
Model: QUA69122B
No reviews yet
Price is $161.39
Unit of measure 1000/Carton
Free delivery by Fri, Oct 10
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Quality Park Redi-Seal Security Tinted Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (QUA11218)~#|#~sp145132158_sc7Quality Park Redi-Seal Security Tinted Business Envelopes, 4 1/8" x 9 1/2", White, 500/Box (QUA11218)~#|#~sp145132157_sc7
Item: 507690
Model: QUA11218
Price is $101.59
Unit of measure 500/Box
Free delivery by Fri, Oct 10
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Quality Park Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", White Wove, 1000/Carton (QUA90020B)~#|#~sp40322437_sc7Quality Park Gummed #10 Business Envelopes, 4 1/8" x 9 1/2", White Wove, 1000/Carton (QUA90020B)~#|#~sp40322435_sc7
Item: 812435
Model: QUA90020B
Price is $90.19
Unit of measure 1000/Carton
Free delivery by Fri, Oct 10
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JAM Paper Strathmore Open End #10 Business Envelope, 4 1/8" x 9 1/2", Bright White Wove, 50/Pack (64933I)~#|#~sp112110502_sc7JAM Paper Strathmore Open End #10 Business Envelope, 4 1/8" x 9 1/2", Bright White Wove, 50/Pack (64933I)~#|#~sp112110501_sc7
Item: 1588544
Model: 64933I
No reviews yet
Price is $19.69
Unit of measure 50/Pack
Delivery by Thu, Oct 16
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Quality Park Redi-Strip Security Tinted #10 Envelopes, 4-1/8" x 9-1/2", White, 30/Box (QUA69112)~#|#~s0375270_sc7Quality Park Redi-Strip Security Tinted #10 Envelopes, 4-1/8" x 9-1/2", White, 30/Box (QUA69112)~#|#~s0171469_sc7
Item: 813435
Model: QUA69112
Price is $15.89
Unit of measure 30/Box
Delivery by Fri, Oct 10
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", White, 1000/Carton (35532B)~#|#~sp4800450_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", White, 1000/Carton (35532B)~#|#~sp4800449_sc7
Item: 2633055
Model: 35532B
Price is $90.19
Unit of measure 1000/Carton
Free delivery by Thu, Oct 16
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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 $8.99
Unit of measure 40/Pack
Delivery by Tue, Oct 21
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JAM Paper Self Seal #10 Booklet Envelope 4 1/8" x 9 1/2", White, 50/Pack (75746-50)~#|#~3AFDDC25-BCBE-41D2-B6EC48C84E0E7D06_sc7JAM Paper Self Seal #10 Booklet Envelope 4 1/8" x 9 1/2", White, 50/Pack (75746-50)~#|#~4E8014B3-0A90-4BAA-BFF44CF296C8DF22_sc7
Item: 24604594
Model: 75746-50
No reviews yet
Price is $14.95
Unit of measure 50/Pack
Delivery by Thu, Oct 16
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JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", White, 50/Pack (49856I)~#|#~sp115352044_sc7JAM Paper Open End #10 Currency Envelope, 4 1/8" x 9 1/2", White, 50/Pack (49856I)~#|#~sp115352043_sc7
Item: 1588599
Model: 49856I
Price is $17.09
Unit of measure 50/Pack
Delivery by Thu, Oct 16
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Blue, 25/Pack (15861)~#|#~sp111772444_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Blue, 25/Pack (15861)~#|#~sp111772442_sc7
Item: 263914
Model: 15861
Price is $10.29
Unit of measure 25/Pack
Delivery by Thu, Oct 16
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JAM Paper Peel & Seal #10 Business Envelope, 4 1/8" x 9 1/2", Christmas Green, 50/Pack (86555I)~#|#~6D72CF40-FFBC-49D2-943889305B5B19A6_sc7
Item: 1588698
Model: 86555I
Price is $17.09
Unit of measure 50/Pack
Delivery by Thu, Oct 16
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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 $95.99
Unit of measure 500/Box
Free delivery by Fri, Oct 10
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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 $56.69
Unit of measure 250/Pack
Free delivery by Mon, Oct 20
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Box, 24lb. White Linen (WS-2960-50)~#|#~m004063955_sc7
Item: 2146463
Model: WS-2960-50
Price is $32.29
Unit of measure 50/Pack
Delivery by Mon, Oct 20
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Orange, 50/Pack (15860I)~#|#~sp112110495_sc7JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Orange, 50/Pack (15860I)~#|#~sp112110494_sc7
Item: 1588559
Model: 15860I
Price is $17.09
Unit of measure 50/Pack
Delivery by Thu, Oct 16
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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, Oct 20
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Great Papers Summer Meadow #10 Invitation Envelope 4 1/8" x 9 1/2", Multicolored, 25/Pack (2025002)~#|#~F5A1B04F-F755-4A8E-82F6B75DC1939D23_sc7Great Papers Summer Meadow #10 Invitation Envelope 4 1/8" x 9 1/2", Multicolored, 25/Pack (2025002)~#|#~FEB3D2BC-AE29-4281-9A174556EFB7F766_sc7
Item: 24632071
Model: 2025002
No reviews yet
Price is $7.99
Delivery by Tue, Oct 21
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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 Thu, Oct 16
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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 $48.69
Unit of measure 500/Box
Free delivery by Fri, Oct 10
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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 Mon, Oct 20
30-min pickup
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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 $65.39
Free delivery by Fri, Oct 10
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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 Mon, Oct 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 $336.39
Unit of measure 2/Carton
Free delivery by Wed, Oct 22
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JAM Paper #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Brown Kraft, 25/Pack (6314842)~#|#~sp74308924_sc7JAM Paper #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Brown Kraft, 25/Pack (6314842)~#|#~sp74308921_sc7
Item: 261536
Model: 6314842
Price is $20.49
Unit of measure 25/Pack
Delivery by Thu, Oct 16
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Box, 24lb. White w/ FDIC Security Tint (WS-2652-50)~#|#~m004064021_sc7
Item: 2147235
Model: WS-2652-50
Price is $30.29
Unit of measure 50/Pack
Delivery by Mon, Oct 20
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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 Thu, Oct 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, Oct 10
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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 $15.19
Unit of measure 40/Pack
Delivery by Tue, Oct 21
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JAM Paper Peel & Seal #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Christmas Red, 25/Pack (11789)~#|#~sp36388124_sc7JAM Paper Peel & Seal #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Christmas Red, 25/Pack (11789)~#|#~sp36388044_sc7
Item: 263862
Model: 11789
Price is $10.29
Unit of measure 25/Pack
Delivery by Thu, Oct 16
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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 $8.49
Unit of measure 40/Pack
Delivery by Tue, Oct 21
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Pack, Sunflower (LUX-4260-12-50)~#|#~sp12274947_sc7LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Pack, Sunflower (LUX-4260-12-50)~#|#~sp12275007_sc7
Item: 24162051
Model: LUX-4260-12-50
Price is $39.09
Unit of measure 50/Pack
Free delivery by Mon, Oct 20
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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 Thu, Oct 16
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LUX #10 Square Flap Invitation Envelopes (4 1/8 x 9 1/2) 50/Pack, Pool (LUX-4860-102-50)~#|#~sp14807463_sc7
Item: 24260625
Model: LUX-4860-102-50
No reviews yet
Price is $25.19
Unit of measure 50/Pack
Delivery by Mon, Oct 20
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LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes, Silver Metallic, 50/Pack~#|#~m004940415_sc7LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes, Silver Metallic, 50/Pack~#|#~m005823916_sc7
Item: 281934
Model: 5360-06-50
No reviews yet
Price is $21.89
Unit of measure 50/Pack
Delivery by Mon, Oct 20
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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 Mon, Oct 20
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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 $137.99
Free delivery by Mon, Oct 20
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JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Natural, 50/Pack (900926651I)~#|#~sp132864269_sc7JAM Paper Open End #10 Business Envelope, 4 1/8" x 9 1/2", Natural, 50/Pack (900926651I)~#|#~sp132864268_sc7
Item: 1588594
Model: 900926651I
Price is $20.49
Unit of measure 50/Pack
Delivery by Thu, Oct 16
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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.