Heavy duty cardboard boxes made in Australia from double wall C-flute corrugated board: two layers of fluting for much more crush and puncture resistance than a standard single wall carton. Use these strong shipping boxes for heavy, fragile or high-value goods such as glassware, ceramics, pharmacy and cosmetic products, books, appliances and spare parts. The 5 sizes share a 135–180mm height, so they work as a modular range (T1 to T6).
Find your size
All 5 heavy duty boxes drawn to the same scale, seen from above. T2 is about two T1s long, T3 about three, and T4 is two T2s side by side. Tap a box to shop it.
Heavy duty double wall box sizes
| Code | Size | Inside (mm) | Volume | Good for | Pack sizes |
|---|---|---|---|---|---|
| B901 | T1 | 140 x 135 x 175 | 3.3L | Pharmacy items, jars, small heavy parts | 25 / 50 / 100 |
| B902 | T2 | 270 x 135 x 175 | 6.4L | Bottles, cosmetics, spare parts | 20 / 40 / 100 |
| B903 | T3 | 400 x 135 x 175 | 9.4L | Long heavy items, tools, bottles in a row | 20 / 40 / 100 |
| B950 | T4 | 270 x 270 x 175 | 13L | Glassware, ceramics, homewares | 20 / 40 / 100 |
| B904 | T6 | 400 x 280 x 180 | 20L | Appliances, books, bulk heavy orders | 20 / 50 (500 wholesale, Sydney) |
Sizes are internal, length x width x height. Regular slotted style: tape the top and bottom flaps closed.
Heavy duty box FAQs ▾
Heavy duty box FAQs
What is a double wall box?
A double wall box is made from corrugated board with two layers of fluting between three liners. It is much stronger than single wall board and better for heavy or fragile goods.
What are T1, T2, T3, T4 and T6 boxes?
They are common names for a modular set of heavy duty cartons. Our T1 is 140 x 135 x 175mm, T2 270 x 135 x 175mm, T3 400 x 135 x 175mm, T4 270 x 270 x 175mm and T6 400 x 280 x 180mm.
Are your heavy duty boxes made in Australia?
Yes. These double wall cartons are made in Australia from FSC certified C-flute board.
What can I ship in a heavy duty box?
Glassware, ceramics, bottles, cosmetics and pharmacy products, books, tools, spare parts and small appliances. Add cushioning so items cannot move.
Do you have bigger strong boxes?
For bigger items, see our large boxes up to 560 x 480 x 400mm. Contact us if you need a custom double wall size.
Do you sell heavy duty boxes wholesale?
Yes. The T6 400 x 280 x 180mm comes in a wholesale pack of 500 (Sydney delivery only). Other sizes come in packs of 20 to 100.
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