
Product information
With these white A4+ letterbox boxes of 350 x 250 x 28 mm you send a complete cookie box as a letterbox parcel. The box is made to fit our white XL cookie box of 345 x 245 x 26 mm exactly: your decorated cookies sit under the clear lid of the XL box, and this white box protects it on the way. It is supplied flat and comes in packs of 50.
Why an outer shipping box around your XL cookie box?
Because your XL box then arrives clean and undamaged. The clear lid stays free of scratches, stamps and labels from the journey, and your customer unpacks it like a real gift. At 28 mm high, the shipping box stays within the maximum size of a PostNL letterbox parcel in the Netherlands (38 x 26.5 x 3.2 cm), so your recipient does not need to be home. That way you can sell and send larger cookie sets without costly parcel boxes.
What else fits in it?
Anything that fits within this size, such as a few cookies in 11 x 15 cm cookie bags or another flat cookie box. The box itself is not intended for direct contact with food, so always pack cookies or sweets separately first. Fill empty space with box filler so nothing moves around.
How do you fold and close the box?
The box is a top loader: you fill it from the top and close the lid with the tuck-in flaps. There is no adhesive strip, so you choose how to close it, with tape or a sealing sticker. See the folding instructions.
| Outer size | 350 x 250 x 28 mm (A4+) |
|---|---|
| Fits around | White XL cookie box, 345 x 245 x 26 mm (sold separately) |
| Material | Corrugated board, E-flute (1.5 to 1.9 mm) |
| Colour | White outside, brown inside |
| Sales unit | 50 pieces, supplied flat |
| Closure | Top lid with tuck-in flaps, no adhesive strip |
| Food contact | No, pack food separately first |
Material and disposal
The letterbox box is made of single-wall corrugated board (E-flute). The sum of lead, cadmium, mercury and hexavalent chromium in the board stays below 100 mg/kg, as required by Regulation (EU) 2025/40. Disposal in the Netherlands: the box (20 PAP) goes with paper and cardboard. Elsewhere, follow your local rules.
Frequently asked questions
Does the A4+ letterbox box fit through the letterbox?
The box is 28 mm high and stays within the maximum size of a PostNL letterbox parcel (38 x 26.5 x 3.2 cm, up to 2 kg). Whether it fits a particular letterbox depends on the recipient's slot.
Which cookie box fits in the A4+ letterbox box?
Our white XL cookie box of 345 x 245 x 26 mm fits exactly. The XL box is ordered separately.
Can cookies go straight into the box?
No, the box is not intended for direct contact with food. Pack cookies or sweets in a bag or small box first.
Does the letterbox box have an adhesive strip?
No, you close the box with tape or a sealing sticker, so you choose the finish yourself.
How do you dispose of the box?
In the Netherlands the empty box goes with paper and cardboard. The material code is 20 PAP. Elsewhere, follow your local rules.
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