Features


#10 Envelopes: The Business Envelope That Means Business

#10 envelopes are the workhorse of modern mailrooms. They’re professional, dependable, and universally recognized. Designed to fit standard 8.5” x 11” trifold letters, they’re ideal for invoices, contracts, statements, or direct mail campaigns. Whether you’re sending hundreds of documents daily or keeping your office stocked with branded stationery, these envelopes deliver reliability with a polished look.


Sized for Efficiency. Built for Business.


Custom Sizes

Universal Size

Fits trifold 8.5" x 11" sheets perfectly—no folding guesswork, no awkward fits.

Premium Paper Stock

Optional Window

Choose between standard or windowed versions to display printed addresses and streamline mailing.

Flexible Quantity

Mailer-Friendly Paper

Available in 24 lb. and 70 lb. paper stocks. Both compatible with mailing equipment and easy to print on.

Custom #10 Envelopes That Match Your Business Identity


Whether you’re streamlining operations or promoting your brand, our #10 envelopes offer flexibility for any need: 

  

Two Printing Options 

  • 1-color printing on 24 lb. white paper with pointed flap — choose from black, reflex blue, or standard red ink. 
  • Full-color printing on 70 lb. uncoated white paper with commercial or square flap options. 

 

Flap Styles & Seams 

Choose between pointed or square flaps and side seams for the professional look. 

  

With or Without Window 

Windowed options are perfect for address visibility and mailing automation. No window? Great for personalized or private content. 

  

Flexible Order Quantities 

Print anywhere from 250 to 100,000 envelopes, with turnaround options as fast as 2–3 business days for 1-color printing. 





#10 Envelopes FAQs

Q: What size paper fits inside a #10 envelope?

Size. Color. Material. It's all here, and more.

3 Paper/Stock Options

#10 envelope templates.

Save time by using our free templates. Our templates have been setup with proper bleeds and margins, assuring your print job turns out accurate. To download, select a file type and click on the size below.
Reviews

Reviews. See what our customers say.

Reviews for #10 Envelopes
4.3
Out of 5.0
  • 5 Star
    (70)
  • 4 Star
    (10)
  • 3 Star
    (7)
  • 2 Star
    (2)
  • 1 Star
    (10)
Overall Rating
81%
of customers that buy this product give it a 4 or 5-Star rating.
EXCELENT...
Verified buyer
October 24, 2025 by ALBERTO MEDINA LUPERON ( FL )
“EXCELENT”
Perfect print quality and professional finish
Verified buyer
October 23, 2025 by Douglas Granillo ( CA )
“I ordered custom envelopes for my insurance agency, and they came out perfect sharp print quality, clean edges, and professional look. Shipping was fast and the packaging kept everything in mint condition. Definitely recommend for any business needing reliable, quality printing.”
Arrived sooner than...
Verified buyer
October 20, 2025 by Debbie Abadia ( FL )
“Arrived sooner than expected. Exactly what we ordered.”
U-print reliable service
Verified buyer
October 12, 2025 by Wendy ( NJ )
“My custom printed envelopes perfectly done!”
Satisfied Again
Verified buyer
August 24, 2025 by Scott/John C-Zones ( MA )
“We chose UPrinting once again because they offered more features than our local, more limited printer. Our client was extremely pleased with their process color business envelopes. Frankly, we cannot remember a time that we have been dissatisfied with an order from UPrinting. !El mejor!”
Printing Cost:
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