Tape for reopening
A carton closed with a few strips across the top and bottom survives an inspection and a reseal. One wrapped in overlapping tape from corner to corner does not, and a damaged box is a bad start to a slow trip.
Media Mail
How to ship something by Media Mail
Media Mail is a rulebook wearing a low price, and the rulebook decides more of the outcome than the postage does. Confirm eligibility first, because that verdict is what makes every later step correct or pointless. The steps below follow the Domestic Mail Manual sections that govern the service, each read on 2026-08-28.
DMM sections citedRead 2026-08-28Berkeley Heights, NJ
Contents decide the price
Everything on this page follows from one fact: Media Mail is a discount tied to what's inside, not to the box itself.
The five steps, in order
- Check what's in the box against the qualified list. Domestic Mail Manual 273.3.1 limits Media Mail to books of at least eight printed pages, sound and video recordings, printed music, playscripts and manuscripts, printed test materials, films no wider than 16mm, and computer-readable media carrying prerecorded information. A box with anything else mixed in loses the rate for the whole piece.
- Weigh it. USPS caps Media Mail at 70 lb per package on its shipping services page. Price rises with weight, so a heavy box of qualifying material still costs something, just less than the parcel alternative.
- Pack it so it can be opened again. DMM 273.5.3 puts it in as many words: Media Mail is not sealed against postal inspection, and mailing at this rate is the sender's consent to that inspection. Tape it well enough to survive transit, not so well that a clerk has to fight the box to check it.
- Get the postage at the Post Office. Prices start at $4.39 there. USPS's own online shipping page lists the classes Click-N-Ship will print — USPS Ground Advantage, Priority Mail, Priority Mail Express — and Media Mail is not one of them, so the counter is where most senders actually get this label, not a browser tab.
- Hand it over or drop it in. Nothing in the manual requires a handwritten "Media Mail" marking; the postage paid is what tells USPS which price class the piece is in. Once it's stamped correctly, it travels on the same deferred network as everything else at that rate.
Sources: Domestic Mail Manual 273, 274, and usps.com/ship/mail-shipping-services.htm, all read 2026-08-28.
Why a browser tab won't finish the job
Click-N-Ship prints USPS Ground Advantage, Priority Mail, and Priority Mail Express labels — that is the complete list on USPS's own online shipping page, read 2026-08-28. Media Mail sits outside it. The manual is more permissive than the website: DMM 274.1.0 allows postage for Media Mail and Library Mail to be paid by any method except precanceled stamps, which in principle covers stamps, permit imprint, and metered postage. In practice, the method a walk-in mailer can actually use that day is the one on offer at the counter.
Postage for Media Mail and Library Mail may be paid by any method except precanceled stamps. Domestic Mail Manual 274.1.0, pe.usps.com, read 2026-08-28.
The gap between what the manual allows and what the consumer website prints is the whole reason this is a counter errand for most people, rather than something finished from a kitchen table like a Ground Advantage label.
What the inspection consent actually means
Section 5.3 of DMM 273 is short and specific: Media Mail and Library Mail are not sealed against postal inspection, and the mailer consents to that inspection by using the price in the first place. Nothing about that clause is unusual or aggressive — it is the mechanism that keeps the discount honest, since the only thing verifying eligible contents is a clerk who can look.
Keep the contents uniform
A qualifying book beside a non-qualifying gift item converts the whole piece to regular parcel pricing if it's caught, and the postage paid stops matching what's inside.
No timeline to plan against
DMM 273.5.1 states plainly that USPS does not guarantee delivery within a specified time for this service. A gift with a date attached belongs on a tracked class instead.
If the box doesn't qualify
Media Mail's price depends entirely on contents our checkout never opens, so SMKlog doesn't sell it and can't be the place you finish this errand online. What we can do is price the same box on USPS Ground Advantage and the other carriers for a same-day comparison, which is useful even for eligible contents when the deadline matters more than the two dollars saved.
Compare against a tracked parcel rate See the Media Mail price table
Common questions
Can I print Media Mail postage online with Click-N-Ship?
USPS's own online shipping page lists what Click-N-Ship prints: USPS Ground Advantage, Priority Mail, and Priority Mail Express. Media Mail is not on that list, read 2026-08-28, so the class most people can actually generate at home does not include it. The Domestic Mail Manual (274.1.0) says Media Mail postage may be paid by any method except precanceled stamps, but the retail counter is where that range of methods is actually offered to a walk-in mailer.
Does USPS open Media Mail packages to check them?
It's allowed to. Domestic Mail Manual 273.5.3, read 2026-08-28, states that Media Mail and Library Mail are not sealed against postal inspection, and that mailing at these prices is the sender's consent to that inspection. Pack it so the box can be opened and closed again rather than taped past the point of no return.
What is the Media Mail weight limit?
70 lb per package, per USPS's shipping services page read 2026-08-28. Price is charged per pound, so a heavy box costs proportionally more; there is no flat rate version.
Do I have to write "Media Mail" on the box?
The Domestic Mail Manual's Media Mail section sets no marking or endorsement requirement, and neither does USPS's consumer shipping page, read 2026-08-28. The postage itself, not a handwritten label, is what tells USPS which class the piece is traveling under.
How long does Media Mail take to arrive?
USPS publishes it as "Shipping in 2-8 Days" and then goes further in its own manual: Domestic Mail Manual 273.5.1 states that USPS does not guarantee the delivery of Media Mail or Library Mail within a specified time. Both read 2026-08-28. Treat the 2-8 days as a description, not a promise.
Why doesn't SMKlog sell Media Mail labels?
Media Mail's price depends on what's inside a box our checkout never opens, so it isn't something we can quote or print. This guide exists to walk through the steps anyway; for anything that doesn't qualify, or for a same-lane comparison against Ground Advantage, our calculator prices the regular services live.