# Single wall box 440x300x260 mm A3

## **Single wall box 440 x 300 x 260 mm - 4 mm board that absorbs stacking pressure**

A box at the bottom of a stack carries everything above it. That is exactly why this **440 x 300 x 260 mm** format is made in a single wall grade of **4 mm**, on a base where A3 lies flat. Since 2007, we have been the go-to wholesaler for single wall folding cartons and we use the C-flute across our [cardboard boxes](en/cardboard-boxes) wherever stacking and transport really load the box.

The C-flute is taller than the B-flute used in 3 mm board. That puts more air inside the wall, so the board springs back after a load instead of staying dented. In corrugated board the stacking strength comes from the vertical corners, so set the boxes squarely on top of one another. Done that way, a single wall carries more than its thickness suggests.

### **Where this size is used**

**Pallet building:** several layers that keep their shape when wrapped tightly.
**Medium-heavy contents:** components, fixings and household goods.
**Fragile contents:** the spring in the wall absorbs knocks during sorting.

### **Specifications**

- **Dimensions:** 440 x 300 x 260 mm
- **Material:** corrugated cardboard
- **Quality:** single wall, 4 mm
- **Flute type:** C-flute
- **Colour:** brown
- **Printing:** unprinted
- **Pack contents:** 20 boxes
- **Packs per pallet:** 18

### **Features and benefits**

- **Springs back** - no permanent dent after stacking pressure.
- **Strong corners** - the load-bearing strength sits where you need it.
- **Supplied flat** - compact storage until you set the boxes up.
- **Unprinted** - free for your own label or stamp.

Do you have questions about which size of [single wall shipping boxes](en/cardboard-boxes/folding-boxes/single-wave-shipping-boxes) is best suited to your situation? Please don't hesitate to contact us - by phone on [+31 184 – 614256](tel:+31%20184%20-%20614256), via [info@kortpack.nl](mailto:info@kortpack.nl) or via [WhatsApp](https://wa.me/31184614256).

### **Frequently asked questions**

### How high can I stack filled boxes of this size?

With medium-heavy contents this format holds three to four layers well, provided the corners line up and the pallet is wrapped. For heavier loads, work with fewer layers and an intermediate sheet.

### What do I gain with 4 mm over 3 mm?

A taller flute, so a thicker and springier wall at roughly the same tare weight. You see the difference after transport, in the condition the boxes arrive in.

### Can this box be reused?

Usually yes, a few times. Check the corners and the flaps. A crushed corner costs you part of the stacking strength straight away, even when the box otherwise looks fine. A strip of [tape](en/tape) along the bottom seam restores some confidence.

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Source: https://www.kortpack.nl