Description

Focus on Customer Experience
Looking for Heavy duty medium cartons for your expensive products? The 400 x 135 x 175mm is one of the best ones. They are made in premium double-corrugated cardboard by the best factories in Australia. They are solid. You will not have to pay higher prices for superior quality. Choose Ebpak to save more on cardboard boxes.
Click to choose our Heavy Duty Shipping Cartons here.
If you're interested in purchasing wholesale or pallet quantities, please don't hesitate to reach out to our friendly sales team for more information.
Ship anything without compromise
Rely on the superior strength of our 400 x 135 x 175mm Double Wall Heavy Duty Shipping Carton B903, a testament to Australian-made quality. Designed to handle your most demanding shipping requirements, this heavy-duty carton features a double-wall construction for extra protection against impacts, ensuring your items arrive safely and intact. Perfect for businesses and individuals in need of robust, reliable packaging solutions that support local industries. The B903 carton is not just tough; it's also a sustainable choice, reflecting our commitment to high-quality, eco-friendly manufacturing. Elevate your shipping with our Australian-made heavy-duty boxes.
eBPak is committed to utilizing the expertise and resources of Australian factories to produce high-quality packaging products. By choosing to purchase Australian-made packaging, not only are you supporting the local economy and communities, but also reducing the carbon footprint associated with the import of foreign products. We are proud to work with a growing number of Australian manufacturers and invite you to join us in supporting the industry.
Diecut Box Specifications
| Box Size |
400 x 135 x 175mm (Internal Dimension) |
|---|---|
| Brand |
Boxmore |
| Product Code |
B903 |
| Colour |
Brown Outside, Brown Inside |
| Box Style |
Regular Slotted, RSC |
| Printing |
No printing Front and Back. |
| Feature |
Double Wall, Heavy Duty |
| Sustainability |
Compostable, Recyclable |
| Product Type |
Mailer Box |
| Materials |
100% Recyclable as Paper |
| Finish |
Uncoated with a natural matte finish |
| Material Stock Weight |
|
| Item Weight | |
| Board Flute |
c-Flute, Double Wall |
| Certification |
Certification: FSC Certified |
| Warranty |
backed with 90-Days eBPak Money Back Guarantee. |
| Related |
Heavy Duty, Super Strong, Double Wall. Designed for Pharmacy, Expensive or Fragile Items. |
- Open the flat carton into a tube.
- Fold in the two short bottom flaps, then the two long flaps.
- Tape along the bottom seam with 48mm packaging tape. For heavy items, also tape across both ends (H-taping).
- Pack your items and fill any gaps with void fill or bubble wrap.
- Close the top flaps the same way and tape the seam.
- Free delivery to Sydney & Melbourne metro on orders over $500.
- $50 flat rate to Wollongong areas and $75 to Gosford & Newcastle areas (up to 2 tonne).
- Australia-wide delivery via Australia Post and trusted couriers.
- Free pickup from Minto NSW or Braeside VIC, Mon–Fri 9am–4pm.
- 90-day returns on unopened items. See our refund policy.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Sizing
What fits in this box
Inside: 400 x 135 x 175mm (length x width x height)
- About 9.5 litres of space inside
- Delivered flat, folds into shape in seconds
- Sizes are inside measurements. Allow 5–10mm each side for bubble wrap or padding.
- Not sure? Use the size finder below or call us on (02) 8750 5347.
More regular shipping cartons


















Not sure of the size? Enter your item's dimensions.
Packing essentials
















Buy in bulk. Pay less per box.
Australian-made cartons in bulk quantities, from $0.87 a box. Trade accounts get invoice terms and a dedicated contact.
Questions about this box
Is the size inside or outside the box?
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.
What does the pack size mean?
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.
Are the boxes delivered flat?
Yes. Regular cartons are delivered flat to save space and fold into shape in seconds.
How do I seal the box?
Use 48mm packaging tape along the top and bottom seams. For heavy items, also tape across both ends. See "How to fold & seal" above.
Can I return the boxes?
Yes. We offer 90-day returns on unopened items. See our refund policy.
Can I pick up my order?
Yes. Choose pickup at checkout and collect from Minto NSW or Braeside VIC, Monday to Friday 9am to 4pm.
Can you make a custom size?
Yes. Custom cartons start from 1,000 units and take around 2 weeks. Get a quote.
Do you offer bulk pricing?
Yes. Bigger packs cost less per box, and pallet quantities cost less again. See our bulk deals.
Need it today? Pick it up.
Order online and we'll usually have it ready in 15–30 minutes at either warehouse.














