Mailer Boxes for E-commerce Packaging in Nepal

Hands packing a cardboard box with brown protective paper.

Quick answer: For online orders use a corrugated mailer box sized to the product's internal dimensions plus room for padding, strong enough to survive courier handling, and branded on the outside or with a printed insert. Measure the product, choose the box by internal size (length × width × height), and test one sample through a real delivery before you order a full run.

Online sellers lose money on damaged parcels and oversized boxes. A box that fits closely protects the product and keeps the parcel small.

Measure the box correctly

  1. Measure the product at its longest, widest and tallest points, with accessories.
  2. Add room for padding: about 10 to 20 mm per side for sturdy items, more for fragile ones.
  3. State the size as internal length × width × height. Printers and box makers use internal size for fit.
  4. Weigh the packed product. Heavier items need stronger board.
A worker holding a kraft food box and a paper cup
Kraft food boxes and cups are printed and then cut and folded. Stock photo.

Choose the box type

TypeBest forNotes
Corrugated mailerApparel, accessories, books, giftsSelf-locking, ships flat
Corrugated shipper (RSC)Heavier or irregular goodsStronger, no pre-folded lid
Folding carton with outer cartonCosmetics, small retail productsCarton gives the brand look, outer box protects
Rigid gift box in outer cartonPremium giftingHighest presentation, highest cost

Public listings checked on 10 November 2026 show plain 2 mm corrugated cubes from NPR 29 for 6-inch to NPR 53 for 12-inch. These are not printed custom boxes; see custom packaging boxes in Nepal for the caveats.

Branding that works on a mailer

Test before you scale

Pack one sample as you would for a real order, ship it by your usual courier, and check for crush, bulge and product movement. If the product moves, add padding or reduce box size.

Quote checklist

A worked example: sizing a box

Say your product is a folded shirt in a poly bag that measures 30 × 22 × 4 cm.

  1. Product size: 30 × 22 × 4 cm.
  2. Add padding: about 1 cm per side for a sturdy item, which adds 2 cm to each dimension. The internal size becomes 32 × 24 × 6 cm.
  3. Add an insert or tissue: a thin tissue layer can add another 0.5 to 1 cm in height, so choose 32 × 24 × 7 cm.
  4. Check the outer size: board thickness adds a few millimetres on each side, which matters for courier size bands.
  5. Check weight: add the box and packaging to the product weight and compare with your courier's limit.

If you find a standard box within 1 cm of this internal size, it may be the cheaper choice. If standard sizes leave large gaps, a custom size saves filler and shipping cost.

Courier handling tests

Before ordering a full run, pack one sample and test it:

Note the failures and adjust the size, the board or the padding.

Protection options

ItemUse
Paper filler (crinkle or kraft)Light protection and a neat look
Moulded pulp or card insertHolds fragile items in place
Bubble wrapExtra protection for fragile items
Tissue paperPresentation and scratch protection
Corrugated dividerSeparates multiple items
Tape and tamper sealCloses the box and shows if it was opened

Choose the lightest protection that passes the test, to keep shipping cost down.

Branding points that cost little

  1. One-colour print outside, for example a logo on the lid.
  2. A printed sticker or label on a plain box. See sticker prices.
  3. A printed card inside with a thank-you note and order details.
  4. A branded tape across the seam.
  5. Tissue with a pattern inside.

These give the unboxing a brand feel without printing the whole box.

Reducing waste and returns

Ordering stages

  1. Prototype: a plain sample in the planned size.
  2. Test shipment: at least one real parcel.
  3. Small branded run: a few hundred boxes.
  4. Full order: after you confirm fit, strength and brand look.

See how to choose custom packaging and packaging design for retail and ecommerce.

Frequently asked questions

Should I buy a standard size or custom size?

A standard size is cheaper for small runs. Custom size pays off when a standard size leaves too much empty space.

Does printing weaken the box?

Print does not change board strength, but heavy ink coverage and cuts can affect fold quality.

Can I print a few boxes first?

Ask for a small sample run before committing, and compare the quote for sample and full quantities.

Get packaging for online orders

See packaging design for retail and ecommerce, the D2C mailer bag and contact Thankyooou.

Sources

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