Auto-Bottom Box with Tuck Top

The native friction tuck top is vulnerable to opening if the box is dropped or crushed. For parcel shipping, plan for an outer seal, strapping, or a factory-applied adhesive strip to keep the lid secure.

The interlocking base tabs and the friction tuck top require precise clearances. Heavy boards make the folds too stiff, causing the base to bind and preventing the top from closing cleanly. Fine flutes or solid board yield much better results.

Because the base locks automatically when squared, operators skip folding four bottom flaps and applying tape. In high-volume fulfillment, this saves several seconds per package, which scales into significant daily labor savings.

Because the pop-open resistance and the tuck flap friction depend entirely on the specific board caliper, a physical prototype helps verify that the box will erect smoothly and stay closed.

The flat, locked floor provides a stable base for corrugated partitions or foam inserts, making it a strong choice for kitting multiple components securely.

The pre-glued base requires specific folding and gluing machinery, which involves longer preparation time. For very short runs, a snap-lock base is often more practical, while this auto-bottom style excels for mature, repeat programs.

It can, depending on the seal size. The thumb cut provides finger access to open the lid, so if you plan to apply a security sticker over the front edge, the cutout size should be adjusted to ensure the sticker has enough surface area to grip.

They arrive knocked-down flat, but the glued base overlap adds a slight thickness to each folded unit. They still stack efficiently, though a bundle will be slightly thicker than an equivalent bundle of unglued slotted boxes.