Tab lock mailer box dieline

About this dieline

A tab lock mailer is a corrugated mailer box whose lid locks itself. A tab on the front wall comes up through a slot in the lid and holds it shut, so the box needs no tape or glue and stays closed in the post. The end walls are double: they fold round from the back wall and roll over the flaps of the front wall. Suppliers also call it a tab locking literature mailer, a front lock mailer or a roll end tuck top box.

Enter the length, width and height and the board thickness, and download a print-ready PDF with cut and crease lines. Under the lid there is a second, inner lid that folds in from the front wall and keeps dust out. The box ships flat and suits books, printed matter, clothing and subscription orders.

How does the lid lock and open?

Close the lid and push its tongue down behind the front wall; the tab on the front wall snaps up through the slot at the lid's front edge. To open, press the tab back with a thumb and lift the lid.

How is it different from a regular mailer box?

A regular mailer box (FEFCO 0427) has double side walls locked into the base and a lid held by friction. Here the double walls hang on the back wall, there is an inner lid, and the lid is locked by a tab, so it does not pop open when the parcel is dropped.

Tab lock mailer sizes: mailer boxes whose lid locks on a tab →