Very good price
The B912 is an Australian made brown shipping carton with an internal size of 430 x 305 x 255mm, sized for A3 items. Made from C-flute corrugated board in a regular slotted carton (RSC) style, it folds flat for storage and seals with packing tape for strong, everyday protection in transit. It is sized to stay under Australia Post's 10kg cubic weight threshold, helping keep parcel postage down.
| Product code | B912 |
|---|---|
| Internal dimensions (L x W x H) | 430 x 305 x 255mm |
| Paper size fit | A3 |
| Box style | Regular slotted carton (RSC) |
| Colour | Brown |
| Board | C-flute corrugated board |
| Country of manufacture | Australia |
| Cubic weight | Under 10kg (Australia Post) |
| Recyclable | 100% recyclable |
| Certification | FSC certified |
| Pack sizes | 25, 50 or 100 cartons |
| Guarantee | 90-day money-back guarantee |
Need a different size? Because our regular cartons are made locally, we can produce shipping cartons to your exact dimensions — from 1,000 units, with a turnaround of around 2 weeks. Get a quote for custom boxes and cartons.
Browse the full range of Brown Shipping Boxes & Cartons or our Australian Made Packaging.
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Sizing
Inside: 430 x 305 x 255mm (length x width x height)






Australian-made cartons in bulk quantities, from $0.87 a box. Trade accounts get invoice terms and a dedicated contact.
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.
The pack size is how many boxes come in one pack, for example x25 is a pack of 25 boxes. "Number of packs" sets how many packs you get, so x25 with 2 packs is 50 boxes.
Yes. Regular cartons are delivered flat to save space and fold into shape in seconds.
Use 48mm packaging tape along the top and bottom seams. For heavy items, also tape across both ends. See "How to fold & seal" above.
Yes. We offer 90-day returns on unopened items. See our refund policy.
Yes. Choose pickup at checkout and collect from Minto NSW or Braeside VIC, Monday to Friday 9am to 4pm.
Yes. Custom cartons start from 1,000 units and take around 2 weeks. Get a quote.
Yes. Bigger packs cost less per box, and pallet quantities cost less again. See our bulk deals.
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