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The B120 is a brown tuck front mailing box with an internal size of 250 x 150 x 52mm. Its self-locking tuck front folds closed neatly, and the double-walled sides and front flap add rigidity in transit, making it a practical mailer box for everyday online orders.
| Product code | B120 |
|---|---|
| Internal dimensions (L x W x H) | 250 x 150 x 52mm |
| Box style | Tuck front, self-locking |
| Colour | Brown |
| Board | E-flute corrugated board |
| Construction | Double-walled sides and front flap |
| Recyclable | 100% recyclable |
| Certification | FSC certified |
| Pack size | 100 boxes |
| Guarantee | 90-day money-back guarantee |
Browse the full range of Brown Tuck Front Mailing Boxes.
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Sizing
Inside: 250 x 150 x 52mm (length x width x height)




Order 1,000+ mailing boxes, or Australian-made shipping cartons by the pallet, and we'll quote a wholesale price. Trade accounts get invoice terms and a dedicated contact.
Fold up the sides, lock the double side walls over the dust flaps, pack your items, then close the lid and tuck the front flap into the front of the box. Self-seal styles have an adhesive strip on the flap. On other styles, add a strip of tape or a branded sticker for heavier items or extra security.
All sizes are internal (length x width x height), measured inside the box. The outside is a few millimetres bigger because of the board thickness.
"Full" colour boxes (for example Full Black or Full Rose Pink) are printed the same colour inside and out, so the box looks finished the moment it's opened. Most other coloured boxes are coloured outside with a natural kraft inside.
Yes. The lid opens like a gift box and the double side walls give a clean, strong finish, so they're popular for gift sets, cosmetics, candles and subscription boxes. Add tissue paper or shredded paper filler for a nicer unboxing.
Yes. The boxes are delivered flat in packs and fold into shape in seconds, so they take up very little shelf space.
Yes. We make custom printed boxes from 1,000 units, usually in around 2 weeks. Get a quote. For smaller runs, a printed sticker or stamp on a plain box works well.
The pack size is how many boxes come in one pack, for example x100 is a pack of 100 boxes. "Number of packs" sets how many packs you get, so x100 with 2 packs is 200 boxes.
Yes to both. We offer 90-day returns on unopened items (see our refund policy), and you can choose pickup at checkout and collect from Minto NSW or Braeside VIC, Monday to Friday 9am to 4pm.
Order online and we'll usually have it ready in 15–30 minutes at either warehouse.
Talk to our team
Call us on (02) 8750 5347
Fast delivery Australia-wide
Via Australia Post and trusted couriers
Pickup in Sydney & Melbourne
Minto NSW and Braeside VIC
90-Day Returns
On unopened items