Corrugated shipping boxes / JETDIELINE

Folding tray with interlocking corners

An open corrugated tray with double end walls and interlocking corners. The blank is erected without adhesive; this page shows the custom V2 construction with B flute.

Folding tray with interlocking corners — Dieline preview of the documented example. Set the dimensions and production material in JetDieline.

Interactive 3D fold view

03 / BOX

Simplified display model without material thickness, not to scale.

Template ID: corrugated.tray
Construction: Corrugated shipping boxes
Current template version: V2
Dieline preview version: V2

How the shape is constructed

The bottom sits centrally. Front and back walls have corner flaps that sit in the pockets of the double end walls. Tabs on the inner walls engage in oblong slots in the bottom. V2 sets the return to 10 mm and slot width to 5 mm; V1 remains for older projects.

How it is assembled

Erect the front and rear walls and fold the corner flaps inwards. Erect the end walls over them, fold the fold-over inwards so that the corner flaps sit in the pocket, and insert the locking tabs into the base slots.

Material and grain direction

Grain direction vertical on the blank (check)

Test fit, folding and closure on a sample made from the intended material. Confirm material thickness, grain direction and production steps with your printer.

Dimensions of the illustrated example

300 × 200 × 80 mm

30 × 20 × 8 cm11.81 × 7.87 × 3.15 in / ″

Length: 300 mmWidth: 200 mmHeight: 80 mm

Inside dimension

These dimensions describe the preview, not a fixed packaging size. The app recalculates the dieline for your own dimensions.

What to consider for this construction

Return width

Width of the double wall's return (crease to crease); accommodates the flaps in the pocket.

Flap gap

Gap between adjacent flaps or walls; at least about the material thickness.

Ear length (ratio)

Length of the ears or corner flaps as a proportion of half the inside width.

Tab count

Number of locking tabs per wall.

Tab width

Width of a locking tab.

Frequently asked questions

Does the tray need a glue flap?

No. The corner flaps sit in the pockets of the double end walls. The inner wall tabs lock into the base. For this template, this construction replaces corner gluing. Check engagement and wall alignment on the target material; the calculated blank alone confirms neither holding force nor load capacity.

Can I add more locking tabs?

lockTabCount offers one to four tabs per wall. More tabs need space, as do their width and the gaps between them. lockTabWidth.fitsInnerWall checks this combination. Change count and width together and check on the sample that all tabs engage the base slots simultaneously without deformation.

Why can't the base slot be arbitrarily wide?

The slot must accommodate the material thickness while maintaining clearance from the wall crease. slotWidth.materialMinimum.caliper and slotWidth.atMost.clearOfHinge check both limits. Increasing slot width alone can weaken the lock. Check the tab's fit with the chosen fold-over width on the real corrugated blank.