Side Loading Tab Lock Mailers

Only with more than one locking point. A side opening is a longer edge, and a single central tab lets it gape at the ends. It is a dieline decision rather than a material one.

Only if boxes are arriving crushed. If they arrive intact with damaged contents, the product is moving inside and a heavier outer changes nothing. A fitted insert solves that case, usually at lower cost.

Yes, and for side loading tab lock mailers we prefer to specify both together. A cavity that holds the contents still often lets us drop a grade on the outer, so the pair can cost less than an over-specified box alone.

Measure the product rather than the box currently in use. Most operations we quote are running at least one size too large with void fill compensating, and dropping a band saves on every parcel side loading tab lock mailers carry.

That is a brand decision, not a cost or protection one. For direct-to-consumer parcels where the customer opens it, print can be worth it. For business deliveries it usually is not.

Every run is cut to your dimensions — there are no stock sizes here. Send the product measurements rather than a box size and we will build the mailer box around them, then send a dieline template you can design onto.

We issue a dieline template sized to your product, prepress checks your artwork against it, and a proof comes back for sign-off. Nothing runs until you approve that proof, and mailer boxes then take 3 to 5 business days.

Yes. Once a first run is approved we hold the board, structure, dimensions, print method and finishes against your account, so a reorder references the same specification exactly rather than being re-derived. It also means a reorder can be priced against a larger quantity without re-opening the specification.

Recycled grades are available across most of the substrates we run for mailer boxes. Recycled content, kerbside recyclability and certified compostability are three different claims though, so tell us which one you intend to print.

A print-ready PDF or a vector file, with fonts outlined and any raster images at 300 dpi at final size. We supply the dieline to design onto, and prepress checks bleed, safe area and crease clearance before issuing a proof. The dieline we supply carries the crease positions, so keeping type clear of a crease is easier to solve at layout than at proof.

A flat 100 units on any format. Most mailer boxes in this range are quoted from 100 units upward because unit cost falls sharply above that, but the minimum exists so you can validate a structure first.

3 to 5 business days after artwork approval, plus freight. Mailer box runs with applied finishes can take longer because each finish is a separate pass, and we confirm a firm date in writing with the quote.