Mailer shipping boxes in E-flute or B-flute corrugated that fold up without tape and lock shut with side tabs. We print them outside, inside or both, cut them to your product, and they’re tough enough for the courier while still opening like a proper present.
Your time is very important to us so we have kept it short.
You know the roll-end, fold-together box most online brands ship in? That’s these. Mailer shipping boxes start as one flat sheet of corrugated that folds into a tray with double walls, then the lid tucks into the front and two dust flaps lock it shut, so technically you don’t need tape (most people add a strip or a sticker anyway, just in case).
Online shops use them, subscription brands, makers selling direct. Two reasons. They survive the post. And they open nicely, which matters a lot more than it used to now that half your customers film the unboxing for their followers.
Every side wall folds back over itself, so they’re all doubled, and honestly that’s where most of the strength comes from. The front of the lid has tuck flaps that slot down into the base and little ears on the sides that lock it square. Light stuff like clothes, cosmetics or books? E-flute, it’s thin and prints sharp. Heavier, or anything glass, we’d go B-flute.
Quick tip from the folding table. If your packers are fighting to close the lid, the box is probably too tight, not badly made, and a few millimeters of clearance each side makes packing way faster.
Measure the product (or the product in its inner carton), then add room for tissue or an insert. Go too big and it slides around, so you end up stuffing paper in. Too small and the lid bulges. Our mailer box dimensions guide has common sizes to start from.
Dimensional weight is the sneaky cost here. Couriers charge for volume as well as weight, so a box that’s an inch too deep on every single order adds up fast over a year, and trimming size is often the easiest money a brand can save.
Print the outside and every doorstep gets a branded parcel. Print inside and they see your message the second the lid comes up. Lots of brands keep the outside plain kraft (less tempting for porch thieves) and put all the color inside, and to be fair both work fine.
Rattling? Insert. A die-cut corrugated one with slots holds bottles or jars upright, and a simple card divider keeps two products apart. Our team designs the insert and dieline for free, checks your artwork and sends a digital proof. Inks are soy-based and water-based, and most corrugated mailers are recyclable. More in our corrugated shipping boxes range.
Minimums are low, often around 50 boxes depending on the style. Price per box falls as you order more, so most brands start small, prove the size, then reorder bigger. It’s 10 to 12 business days after proof approval, ground shipping is free anywhere in the USA, and you can ask for a physical sample.
Want a fully printed box with fancier finishes? Look at custom mailer boxes. Something lighter and cheaper with a tuck lid, try tuck top mailer boxes.
They lock without it, but couriers aren’t gentle. A strip of tape or a branded seal sticker keeps the lid shut if it lands on a corner.
Yes, and loads of people do. Plain kraft outside stays low-key, the inside does the reveal.
Glass jars, B-flute with an insert. Tins or light candles held firmly are OK in E-flute.
Brands ordering these often look at tuck top mailer boxes, bux board boxes, custom shipping boxes and vape accessories shipping boxes as well. You can see the full range in corrugated shipping boxes, and our guide to mailer box dimensions helps with sizing.
