Single wall box 310x215x100 mm A4

Cardboard box 310 x 215 x 100 mm - flat, wide and rigid in 4 mm

This size comes in 3 mm and in 4 mm, and this is the thicker of the two. Since 2007, we have been the go-to wholesaler for shipping boxes in single wall board, and we see customers reach for the 4 mm version precisely when the model is low and wide. The reason is the base: a large surface with little height gives way under weight sooner than a cube, and a C-flute keeps the internal size of 310 x 215 x 100 mm in shape even when the box is full. More formats are listed under folding boxes.

What the C-flute adds on flat goods

C-flute has a coarser flute structure than the B-flute used in the 3 mm range. That produces a taller, springier wall which absorbs the knocks of a sorting line and returns to shape after an impact. The internal size stays the same as on the thinner version, only the outer dimensions run a millimetre wider per side. If you already run the 3 mm format, both qualities can be used side by side without any change to the packing line.

Typical contents

Heavier flat goods: books, tiles, sheet metal and parts kits.
Fragile items: the thicker wall cushions more than 3 mm.
Consignments with transhipment: parcels that are moved several times en route.

Specifications

• Dimensions: 310 x 215 x 100 mm
• Material: corrugated cardboard
• Quality: single wall, 4 mm
• Flute type: C-flute
• Colour: brown
• Printing: unprinted
• Pack contents: 20 boxes
• Packs per pallet: 96

Features and benefits

• 4 mm C-flute - more spring and puncture resistance than B-flute.
• Rigid base - noticeably less sag under concentrated weight.
• Delivered flat - assembled at the moment of packing, compact to store.
• Quantity discounts - the price per box drops as the order size grows.

Do you have questions about which size of single wall shipping 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

What does 4 mm add compared with 3 mm?

A thicker, springier wall and a more rigid base. On light consignments you will barely notice it, on heavy or sharp-edged contents you certainly will.

Is C-flute the same as double wall?

No. C-flute is a single flute layer between two flat liners and works out at roughly 4 mm. In double wall shipping boxes two flute layers sit on top of each other and the wall grows to around 7 mm.

Do I need less filling material with 4 mm?

Slightly less than with 3 mm, because the wall itself cushions. Going without padding altogether is not an option, since contents that can slide will damage themselves whatever the board thickness.