White letterbox boxes E-flute - 345 x 255 x 27mm

White letterbox box 345 x 255 x 27 mm – extra roomy for A4 with folder

Since 2007, we have been the go-to wholesaler for letterbox boxes. This large white letterbox box is roomier than a regular A4 box: an A4 document fits in with a folder or sleeve, with space left for extra protective board. The internal dimensions are 345 mm long, 255 mm wide and 27 mm high. The box is designed to fit through the letterbox, so the recipient does not need to be at home.

Unfold, fill, ship: the box is ready for use in one simple step and arrives flat, so your stock takes up little space. Do you also ship larger consignments? Our folding boxes offer more volume.

What this size is used for

A4 with folder or sleeve: documents you want to send in a folder or protective sleeve.
Flat textiles: a folded scarf, tea towel or thin garment.
Printed matter in sets: several brochures or catalogues in one shipment.

Specifications

Features and benefits

✔ Fits through the letterbox – no parcel hand-over, no waiting for the recipient.
✔ Lightweight – one box weighs about 92 g, which keeps shipping costs low.
✔ Pack of 50 – practical if you regularly send small shipments.
✔ White and unprinted – a neat look, free to label or sticker.

Do you have questions about which size of cardboard boxes is best suited to your situation? Please don't hesitate to contact us — by phone on +31 184 – 614256, via info@kortpack.nl or via WhatsApp.

Frequently asked questions

Does this box fit through the letterbox?

The box is designed to fit through the letterbox. If in doubt, check the letterbox opening of your recipients, as this differs from home to home. The 27 mm stated is the internal height; the outside is slightly higher because of the wall thickness.

How should I store the boxes?

Store the boxes flat and dry, preferably in their packaging until you need them. Moisture softens cardboard, so keep them away from damp cellars or outdoor storage.

Does an A4 document fit?

Yes. The internal size of 345 x 255 mm has room for an A4 sheet (297 x 210 mm).