Custom Cardboard Envelopes
from $1.10 / unitStarting price per unit, shipping included. Your price depends on quantity, size, material and finishes, and drops as quantity grows. The final price comes with your quote, and it includes shipping.
Flat, stiff envelopes that keep documents, photos and prints from bending in the mail. Tell us the size, quantity and print requirements, and we will confirm what is possible and send you a quote.
- Custom sizes
- Free design support
Request a Quote
Tell us what you need. No payment, no obligation.
Details
Custom Sizes
Tell us the size you need and we will quote it.
Design Support
Free artwork and design assistance are included with your quote.
Fast Quotes
We reply to quote requests within 1 business day.
What to Look for in Cardboard Envelopes
A cardboard envelope is a stiff flat mailer, so you choose it when the contents must not bend.
- What it carries. Photos, prints, documents, certificates and flat samples need a rigid cover. Measure the largest item, and add a little room so it slides in and out.
- Stiffness. A thin board bends in the post, and a thicker board resists it. Tell us what you send and how it travels, and we confirm what is possible.
- Closure. A tuck tab, a peel-and-seal strip or a glued flap each suit a use. Decide whether the envelope is opened by hand or torn.
- Thickness of contents. A single flat sheet and a small book need different depths. Tell us the thickness.
- Postage. Size and weight set your postage. A compact envelope can cost less to send, so check the dimensions against your carrier's limits.
Where Cardboard Envelopes Are Used
- Photographers and print sellers posting prints that must stay flat.
- Artists and designers sending portfolios, art cards and posters.
- Offices and legal firms posting certificates and documents.
- Brands and subscription senders shipping flat items such as cards and inserts.
Artwork and Printing Tips for Cardboard Envelopes
- An envelope has a large flat front and a flap. Put your logo on the front, and keep a clear area for the address label.
- Keep text and logo off the folds and away from the flap edge, where the board bends.
- A bold single color on a plain board looks clean. Dense pattern is harder to read once a label is stuck on.
- Print inside the flap is a nice surprise when the envelope opens. Tell us if you want it, and we confirm what is possible.
- Our envelope dielines show the flat shape of several envelope styles, which helps you plan the artwork.
Planning Your Order
Measure the largest item and its thickness, and decide how it will be closed and opened. Check the size against your carrier's rules, and think about how many you send per week and where the flat envelopes are stored. Our measuring guide explains how to take length, width and height so the numbers match what we read.
Test a sample with a real item, and post it to yourself. The Standard Sample Kit costs $50 with shipping included, and other sample types are listed on the Samples page. Pricing and minimums come with your quote.
How It Works
Share Your Requirements
Send us your required or product dimensions, preferred style, required quantity, delivery location, and artwork.
Review Your Quote
We will prepare pricing based on the selected size, material, printing, finishing, and quantity.
Approve Dieline & Artwork
Review the layout and artwork before production begins.
Production and Delivery
After approval, your order moves into production and is shipped to your specified location.
Frequently Asked Questions
How do I order custom cardboard envelopes?
Send your size, quantity, delivery location and artwork with a quote request. We prepare pricing based on the size, material, printing, finishing and quantity, and reply within 1 business day. After you approve the layout and artwork, the order goes into production.
How much do custom cardboard envelopes cost?
Pricing depends on the size, quantity, material, printing and finishes. Request a quote and we will prepare pricing for your project.
How long does it take to get custom cardboard envelopes?
Timing depends on the product, the size and the quantity, and it is confirmed with your quote. Production starts once your artwork is approved and payment is received. Delivery usually takes another 4–5 working days, depending on the carrier and your location, so a typical order arrives in about 2 weeks and larger orders take longer. See the turnaround guide.
What size cardboard envelope do I need?
Measure the largest flat item, and add a little room. Send the size and the thickness, and we confirm what works.
Will a cardboard envelope stop contents from bending?
A stiff board resists bending, but it depends on the board and the handling. Tell us the contents and how they travel, and we confirm the options.
How do I stop contents from sliding in a cardboard envelope?
Choose a size that is only slightly larger than the contents, and add a card or a sheet of tissue if the item is small. A close fit also keeps the envelope from flexing.
What is the difference between cardboard and paper envelopes?
Cardboard envelopes are rigid and keep contents flat, while paper envelopes are lighter and suit letters and documents.
Ready to start your packaging project?
We reply within 1 business day, and quotes include shipping.
+1 (312) 910-5253Monday–Friday, 9:00 AM to 6:30 PM CT