4-Corner Glued Webbed Tray

Generally, no. The 4-corner gluing process involves specific machine preparation. For short trials or low-volume orders, an unglued locking tray is usually more practical, even though it takes slightly longer to assemble by hand.

Yes, the continuous webbed corners prevent dry crumbs, sugars, and powders from leaking out of the bottom edges, which is why it is common in bakery packaging.

It is not recommended without careful testing. The webbed corners fold completely flat during manufacturing, creating three layers of material at the joints. Thick corrugated board often binds or cracks under this tension.

While it is designed to feed smoothly into automated erecting equipment, a packer can also pop the tray open by hand simply by pushing the opposing flat edges inward.

No. This is an open-top primary package. It should be placed inside a mailer, shipping box, or protective sleeve before entering a courier or postal network.

Yes. Because the tray is cut from a single flat blank, the entire interior surface is fully accessible for printing before the carton is folded and glued.

The glued corner gussets sit flat against the interior walls. When sizing the tray for rigid, square products, you should account for the slight thickness of these folded corners to prevent a tight fit.

The standard paperboard is not liquid-tight. For wet or heavily greased foods, the board should be specified with an appropriate barrier coating.