Sponsored Products
Quality Park Redi-Seal Self Seal #10 Double Window Envelope, 4 1/2" x 9 1/2", White Wove, 1000/Pack (24559-QP-1000)~#|#~sp5822112_sc7
Quality Park Redi-Seal Self Seal #10 Double Window Envelope, 4 1/2" x 9 1/2", White Wove, 1000/Pack (24559-QP-1000)~#|#~sp80341907_sc7
Item # : 23995459
Model # : 24559-QP-1000
No reviews yet
Quality Park #10 Double Window Envelope (4 1/8 x 9 1/2) are perfect for mailing checks, invoices, letterhead, personal letters, statements, and direct mail
  • Comes in White Wove w/ Self-Seal
  • Dimensions: 4.125"L x 9.5"W
Price is $219.99
Unit of measure 1000/Pack
Free delivery by Thu, Aug 14
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JAM Paper #10 Window Envelope, 4 1/8" x 9 1/2", Blue, 25/Pack (5156476)~#|#~m002934177_sc7
JAM Paper #10 Window Envelope, 4 1/8" x 9 1/2", Blue, 25/Pack (5156476)~#|#~m003904872_sc7
Item # : 261252
Model # : 5156476
No reviews yet
  • Size: #10 (4 1/8" x 9 1/2")
  • Closure: Gum
Price is $11.19
Unit of measure 25/Pack
Delivery by Mon, Aug 11
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LUX Self Seal #10 Window Envelope, 4 1/2" x 9 1/2", White Wove, 50/Pack (10APW-WW-50)~#|#~sp5822112_sc7
LUX Self Seal #10 Window Envelope, 4 1/2" x 9 1/2", White Wove, 50/Pack (10APW-WW-50)~#|#~sp5875295_sc7
Item # : 23995735
Model # : 10APW-WW-50
No reviews yet
LUX #10 All Purpose Window Envelopes(4 1/8 x 9 1/2) are perfect for mailing checks, invoices, letterhead, personal letters, statements, and direct mail
  • Comes in 28lb. White Wove
  • Dimensions: 4.125"L x 9.5"W
Price is $41.59
Unit of measure 50/Pack
Free delivery by Thu, Aug 14
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JAM Paper #10 Tyvek Business Envelope, 4 1/8" x 9 1/2", White, 50/Pack (2131077C)~#|#~m004542908_sc7
JAM 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
  • Business Envelope, #10
  • Dimensions: 4 1/8" x 9 1/2"
Price is $28.69
Unit of measure 50/Pack
Delivery by Mon, Aug 11
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JAM Paper Self Seal Security Tinted #10 Business Envelopes, 4 1/8" x 9 1/2", White, 50/Pack (61597-50)~#|#~sp228873567_sc7
Item # : 24578606
Model # : 61597-50
No reviews yet
  • #10 Window Envelopes
  • 4 1/8 in x 9 1/2 in
Price is $18.49
Unit of measure 50/Pack
Delivery by Mon, Aug 11
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LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes, Crystal Metallic, 50/Pack~#|#~m004940428_sc7
LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes, Crystal Metallic, 50/Pack~#|#~m005823906_sc7
Item # : 281920
Model # : 5360-30-50
No reviews yet
Lux® Size 10 square flap envelope in crystal metallic color is ideal for various types of personal or business related uses and measures 4 1/8" x 9 1/2".
  • #10 Square Flap Envelopes are perfect for mailing checks/invoices/letterhead/personal letters/statements/direct mail
  • Comes in Crystal Metallic , 80lb. Text Paper
Price is $39.09
Unit of measure 50/Pack
Free delivery by Thu, Aug 14
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Neenah Paper #10 Business Envelope, 4 1/8" x 9 1/2", Classic tural White, 500/Box (NEE2803300)~#|#~m002294530_sc7
Item # : 2622244
Model # : NEE2803300
No reviews yet
  • Coordinated #10 envelope for CLASSIC CREST® Premium Writing Paper.
  • 4 1/8 x 9 1/2
Price is $117.29
Unit of measure 500/Box
Free Next-Day eligible by tomorrow
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Orange, 50/Pack (15860I)~#|#~sp112110495_sc7
JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Orange, 50/Pack (15860I)~#|#~sp112110494_sc7
Item # : 1588559
Model # : 15860I
  • Product Type: Business Envelope
  • Orange recycled paper envelope
Price is $16.69
Unit of measure 50/Pack
Delivery by Mon, Aug 11
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JAM Paper #10 Window Envelope, 4 1/8" x 9 1/2", Orange, 50/Pack (5156477I)~#|#~m004542922_sc7
JAM Paper #10 Window Envelope, 4 1/8" x 9 1/2", Orange, 50/Pack (5156477I)~#|#~m004542921_sc7
Item # : 2329508
Model # : 5156477I
No reviews yet
JAM paper® #10 Window Envelopes are great for sending business letters and provide a window to display addresses.
  • #10 Window
  • Orange Brite Hue Recycled
Price is $19.99
Unit of measure 50/Pack
Delivery by Mon, Aug 11
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JAM Paper #10 Business Envelope 4 1/8" x 9 1/2", White, 250/Pack (43687-250)~#|#~sp228873470_sc7
JAM Paper #10 Business Envelope 4 1/8" x 9 1/2", White, 250/Pack (43687-250)~#|#~sp228873469_sc7
Item # : 24578329
Model # : 43687-250
  • #10 Envelopes
  • 4 1/8 in x 9 1/2 in
Price is $30.89
Unit of measure 250/Pack
Delivery by Mon, Aug 11
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JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", Blue, 250/Pack (5360-13-250)~#|#~sp228873252_sc7
Item # : 24578290
Model # : 5360-13-250
No reviews yet
  • #10 Square Flap Envelopes
  • 4 1/8 in x 9 1/2 in
Price is $74.29
Unit of measure 250/Pack
Free delivery by Mon, Aug 11
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JAM Paper Strathmore #10 Business Envelope, 4 1/8" x 9 1/2", Bright White, 25/Pack (18506)~#|#~m007063336_sc7
JAM Paper Strathmore #10 Business Envelope, 4 1/8" x 9 1/2", Bright White, 25/Pack (18506)~#|#~m007063335_sc7
Item # : 263980
Model # : 18506
JAM Paper® Size #10 Strathmore bright white linen envelopes in a pack of 25 is perfect for wedding, birthday, holiday or other event and is made from 30% recycled paper.
  • Bright white
  • Size: #10 (4 1/8" x 9 1/2")
Price is $19.99
Unit of measure 25/Pack
Delivery by Mon, Aug 11
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LUX #10 Regular (4 1/8 x 9 1/2) 50/Box, Airmail w/ Security Tint (WS-2956-50)~#|#~m004063949_sc7
Item # : 2146693
Model # : WS-2956-50
No reviews yet
LUX #10 Regular (4 1/8 x 9 1/2) are perfect for mailing checks, invoices, letterhead, personal letters, statements, and direct mail.
  • #10 Regular (4 1/8 x 9 1/2) are perfect for mailing checks/invoices/letterhead/personal letters/statements/direct mail
  • Comes in Airmail w/ Security Tint, 20lb. Text Paper
Price is $36.39
Unit of measure 50/Pack
Free delivery by Thu, Aug 14
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LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes W/Glue Closure, Gold Metallic~#|#~m004940416_sc7
LUX 4 1/8" x 9 1/2" #10 80lbs. Square Flap Envelopes W/Glue Closure, Gold Metallic~#|#~m005823910_sc7
Item # : 281925
Model # : 5360-07-50
Lux® Size 10 square flap envelope in gold metallic color is ideal for different types of personal or business related uses and measures 4 1/8" x 9 1/2".
  • #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 $41.89
Unit of measure 50/Pack
Free delivery by Thu, Aug 14
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JAM Paper Strathmore #10 Business Envelope, 4 1/8" x 9 1/2", Bright White Wove, 25/Pack (64933)~#|#~sp112110502_sc7
JAM Paper Strathmore #10 Business Envelope, 4 1/8" x 9 1/2", Bright White Wove, 25/Pack (64933)~#|#~sp112110501_sc7
Item # : 262529
Model # : 64933
JAM Paper® Size #10 Bright 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 $19.19
Unit of measure 25/Pack
Delivery by Mon, Aug 11
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 250/Pack, Mandarin (LUX-4260-11-250)~#|#~sp12274947_sc7
LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 250/Pack, Mandarin (LUX-4260-11-250)~#|#~sp12275002_sc7
Item # : 24162011
Model # : LUX-4260-11-250
No reviews yet
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 250 per box
Price is $62.69
Unit of measure 250/Pack
Free delivery by Thu, Aug 14
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JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 1000/Pack (43687-1M)~#|#~sp228873585_sc7
JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 1000/Pack (43687-1M)~#|#~sp228873584_sc7
Item # : 24578650
Model # : 43687-1M
No reviews yet
  • #10 Envelopes
  • 4 1/8 in x 9 1/2 in
Price is $78.09
Unit of measure 1000/Pack
Free delivery by Mon, Aug 11
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JAM Paper Open End #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Brown Kraft, 50/Pack (6314842I)~#|#~sp74308924_sc7
JAM Paper Open End #10 Kraft Business Envelope, 4 1/8" x 9 1/2", Brown Kraft, 50/Pack (6314842I)~#|#~sp74308921_sc7
Item # : 1588608
Model # : 6314842I
The JAM Paper #10 (4.13" x 9.5") recycled envelope is a stylish option for people who are not too keen on using white or manila envelopes.
  • Product Type: Recycled Business Envelope
  • Brown recycled paper envelope
Price is $23.89
Unit of measure 50/Pack
Delivery by Mon, Aug 11
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JAM Paper #10 Policy Business Envelopes, 4 1/8" x 9 1/2", White, 25/Pack (49856)~#|#~sp115352044_sc7
JAM 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
JAM Paper® Size 10 Policy envelope measuring 4 1/8" x 9 1/2" is perfectly sized for everyday business correspondence, comes in regular white color and is sold as 25 per pack.
  • Size: #10 (4-1/8" x 9-1/2")
  • Gummed closure with straight flap
Price is $9.39
Unit of measure 25/Pack
Delivery by Mon, Aug 11
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JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", Blue, 50/Pack (5360-13-50)~#|#~sp228873505_sc7
Item # : 24578435
Model # : 5360-13-50
No reviews yet
  • #10 Square Flap Envelopes
  • 4 1/8 in x 9 1/2 in
Price is $21.19
Unit of measure 50/Pack
Delivery by Mon, Aug 11
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Quality Park Gummed Kraft Business #10 Envelopes, 4 1/8" x 9 1/2", Brown, 500/Box (QUA11162)~#|#~s0269135_sc7
Quality Park Gummed Kraft Business #10 Envelopes, 4 1/8" x 9 1/2", Brown, 500/Box (QUA11162) is New at Staples
Item # : 639531
Model # : QUA11162
No reviews yet
  • Business and commercial use
  • Gummed flap
Price is $63.09
Unit of measure 500/Box
Free delivery by Thu, Aug 07
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JAM Paper #10 Business Envelope, 4 1/8" x 9 1/2", Teal Blue, 50/Pack (63924024I)~#|#~sp134498426_sc7
JAM 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
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 Pack50 Envelopes per Pack
Price is $33.19
Unit of measure 50/Pack
Delivery by Mon, Aug 11
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JAM Paper Self Seal #10 Business Envelopes, 4 1/8" x 9 1/2", White, 250/Pack (75761-250)~#|#~sp228873473_sc7
Item # : 24578333
Model # : 75761-250
No reviews yet
  • #10 Window Envelopes
  • 4 1/8 in x 9 1/2 in
Price is $70.19
Unit of measure 250/Pack
Free delivery by Mon, Aug 11
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LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Pack, Mandarin (LUX-4260-11-50)~#|#~sp12274947_sc7
LUX #10 Regular Envelopes (4 1/8 x 9 1/2) 50/Pack, Mandarin (LUX-4260-11-50)~#|#~sp12275002_sc7
Item # : 24162073
Model # : LUX-4260-11-50
No reviews yet
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
Delivery by Thu, Aug 14
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Trending now

People use envelopes for many different things at home or in the office. They are available in various shapes, sizes, styles and textures. There are those used for personal matters, like birthday invitations and letters, and there are others made for communication between professionals in the workforce. #10 envelopes, specifically, are the perfect choice for all of your business correspondence needs. Read on to learn more about why these are important office supplies for any organization.

What Is a #10 Envelope?

A #10 envelope is used for transactional mail or mail that requires action from the receiver. They are best for things printed on 8 ½” x 11" sheets of copy paper. These vessels are ideal for this type of mail because return envelopes, typically smaller #8 or #9 styles fit perfectly inside. Here are some common applications:

  • Advertising
  • Invoices
  • Utility bills
  • Monthly statements
  • Tax information
  • Checks
  • Contracts
  • Health documents
  • Legal processing

What Features Do #10 Envelopes Have?

Depending on what your needs are, there are many different #10 envelopes suitable for any individual or business. Staples offers a range of color options for those who are looking to put a personal touch on their correspondence with clients. Some #10 envelopes even come with special enclosure flaps and tinted plastic films to ensure that sensitive information is sent securely and efficiently. Read more about these features below.

Security Tint

These are simply a type of #10 envelope that are designed for sending documents containing sensitive information through the mail. They are typically used for documents that handle information involving government correspondence, financial data, medical records or paychecks. In some scenarios, these specialized #10 envelopes protect the sender from being liable for stolen information. For many businesses, this is a best practice that ensures security while delivering documents through the postal service.

Adhesive Strip Seals

Staples offers a variety of #10 envelopes and seal options. Traditional gummed styles are the most commonly used and have a water-soluble gum strip that you moisten to seal. There are also many different types that have adhesive strip seals for those who require an added layer of security. Self-seal and moistenable glue #10 envelopes are equipped with an extra-sticky adhesive that’s ready to peel and go. These seals function as built-in tape and erase any doubts you may have about your mail coming open in transit.

Different Colors

#10 envelopes come in many colors for mail that requires a more personal or creative touch. You can choose from your orange, pink, beige and everything in between. These fun shades help add a personal touch to any business’ marketing campaigns and are also great for individuals sending out invitations that require an RSVP from the guest.