Mailer boxes
One-piece boxes that fold closed, for posting single items. The style most online brands use because it opens cleanly and can be printed inside.
Corrugated packaging · Lahore
E-commerce & Postal Boxes
Boxes built to survive courier handling and sized to the product — so you are not paying volumetric charges on empty space.
Why size matters more than it used to
Couriers increasingly bill on volumetric weight — the space a parcel takes up rather than what it weighs. An oversized box quietly adds cost to every order you ship, and the difference compounds across thousands of parcels.
The fix is boring and effective: size the box around the product, with only the clearance protection actually requires. Send us the product dimensions and we will work back from them.
What we make for online sellers
Postal cartons
Conventional taped cartons in smaller, e-commerce-appropriate sizes, for orders that ship in volume and do not need a presentation box.
Outer cartons
Heavier boxes for consolidating many parcels into one shipment to a courier hub or fulfilment centre.
What to send us
- The product dimensions, and how heavy it is
- Roughly how many you ship a month
- Whether it travels alone or inside a bigger consignment
- Artwork, if you want it printed, and how many colours it uses
If you are not sure what board you need, describe the product and the journey — we will suggest a specification rather than make you choose one.
The cost of shipping air
Couriers increasingly bill on volumetric weight — the space a parcel takes rather than what it weighs. An oversized box therefore costs money on every single order, and because it is a small amount each time, it rarely shows up as a line anyone questions.
The arithmetic is worth doing once. A box two inches larger than it needs to be, on a thousand orders a month, is a running cost with nothing on the other side of it. Right-sizing is the cheapest saving available in e-commerce packaging and it is entirely a specification decision.
There is a second cost too: a product that moves inside an oversized box arrives damaged more often, and a damaged arrival costs the replacement, the return shipping and the customer.
What a courier actually does to a box
E-commerce cartons are handled differently from pallet freight, and the specification should reflect that.
| What happens | What the box needs |
|---|---|
| Thrown into a cage | Corner and edge strength, because it will land on one. |
| Buried under other parcels | Enough board that a flat panel does not bow inward onto the product. |
| Handled in the wet | Board that has not been specified so lean that a damp trip finishes it. |
| Opened by the customer | A lid that opens without a knife going through the product underneath. |
Mailer or shipper?
A mailer is a one-piece box with an integrated lid that folds shut and locks — no tape needed, and it opens cleanly in the customer's hands. It suits flat and medium-depth products, and it is the format most online sellers picture.
A shipper is a conventional slotted carton with flaps, taped top and bottom. It is cheaper per unit, better for deep or heavy items, and is the right answer when the box is a means of transport rather than part of the product experience.
Most sellers end up with both: mailers for the retail lines, shippers for bulk and for restocking. Both are cut to your sizes, so the two can share a board grade and a print.
Printing on an e-commerce box
This is the one carton your customer physically touches, which makes it worth more here than anywhere else in the range. Print is quoted per colour, so a single-colour logo is considerably cheaper to run than full artwork — and on kraft board, one colour done well usually looks better than four done cheaply.
Common questions
What is the difference between a mailer box and a regular carton?
A mailer is designed to be posted on its own rather than packed inside a bigger box. It folds from one piece, closes without tape if you want it to, and is usually a thinner board — because it needs to survive courier handling rather than a stacked pallet. A regular shipping carton assumes it will travel in bulk.
What size box should I order for e-commerce?
As close to the product as protection allows. Couriers in Pakistan increasingly charge on volumetric weight, so an oversized box means paying to ship air on every single order. Send us the product dimensions and we will size the box around it.
Which board is right for posting single items?
For most single-item e-commerce, 3-ply single wall in B or E flute is enough — B where the contents can take a knock, E where the box is small and you want a cleaner printed finish. Heavier or fragile items move up to 5-ply.
Can we print our brand on the box?
Yes, and for e-commerce it is worth more than elsewhere, because the box is the only physical thing your customer touches. Print is quoted per colour, so a one-colour logo is cheaper to run than full artwork.
Before you specify
Worth reading first
3-ply, 5-ply or 7-plyWhat the ply number counts, roughly how much weight each construction carries, and how to choose without paying for board you do not need.How to measure a cartonInternal versus external dimensions, the length × width × height order, and how much clearance to allow around the product.
No price list, and that is deliberate
Tell us what you need to pack
Every job is specified for one customer, so cost depends on size, board, quantity and print. Describe the product and the journey it makes, and we will propose a specification and quote it.
Request a quote