UPG manufactures custom corrugated ear-lock mailer boxes for branded presentation. Standard shipping cartons, master cartons, and regular slotted cases are outside the current product range.
UPG uses corrugated-box search language because buyers use it when researching custom mailers. The product offered is a custom corrugated ear-lock mailer for PR, influencer, subscription, ecommerce, launch, and branded presentation programs. UPG does not supply standard shipping cartons, master cartons, or RSC cases.
Each option carries the correct product or style into a prefilled enquiry. Final structure and production details still require review.
Custom branded corrugated mailers with exterior or interior print, insert options, and selected finishes for approved presentation programs.
From 250 units
Standard shipping-carton enquiries are outside UPG's current focused product range and should not enter the mailer quote path.
Not applicable — outside UPG scope
Use this table to organize the first decision. It is not a substitute for a dieline, compatibility review, or written production quote.
| Decision factor | Corrugated Ear-Lock Mailer Boxes | Shipping Cartons, Master Cartons, and RSC Cases |
|---|---|---|
| UPG availability | Available as a custom project | Not supplied |
| UPG product language | Corrugated ear-lock mailer box | Standard shipping carton, master carton, or RSC case |
| Starting use | Branded presentation, unboxing, PR, subscription, ecommerce, or launch program | Outside the current UPG offer |
| Quote route | Use the Mailer Boxes project path | Do not submit through UPG |
| Planning MOQ | 1,000 at 5 in or less; 500 over 5 through 10 in; 250 over 10 in | Not applicable |
These questions are designed to move an enquiry into the correct product family before detailed pricing begins.
If not, do not assume the broad phrase corrugated box means the project belongs in UPG's product range.
UPG's corrugated offer is centered on custom presentation mailers rather than standard outer shipping cases.
Mark the enquiry outside scope when the requirement is a shipping carton, master carton, or RSC case.
Unknown items can remain open. Clear product facts and the intended use are more useful than a guessed structure.
These answers are included in the page's machine-readable FAQ data as well as the visible buyer guide.
Every guide stays inside UPG's current product range or clearly filters an unavailable product.
Start with tuck boxes when the brief is an individual folded outer carton. Start with corrugated ear-lock mailer boxes when the brief is a PR kit, subscription, ecommerce, launch, or other branded presentation program. Both are custom-made, and both use UPG's size-based planning MOQ rules.
Compare the two paths →Decision guideChoose a corrugated ear-lock mailer when the brief is a PR, influencer, subscription, ecommerce, or launch program. Choose a magnetic box when the brief is premium rigid gifting or product-set presentation. The product arrangement and intended opening experience should control the decision, not appearance alone.
Compare the two paths →Send the product, dimensions, intended use, quantity, artwork status, and destination. UPG will review the brief and confirm the correct starting structure.