Custom Food Mailer Boxes in Australia: The Complete Buyer's Guide

Everything you need to know before ordering custom food mailer boxes, from styles and sizes to board, printing and sustainability.

This guide is for online food brands, subscription services and businesses moving away from plastic looking at custom food mailer boxes. It covers what matters most before you order, with practical examples from Australian food businesses.

Why custom food mailer boxes matter

Custom food mailer boxes are food-grade boxes made to your size, structure and artwork instead of picked from a generic range. They are used for online food orders, gift deliveries, bakery mail orders and sample packs, and they are a staple for online food brands, subscription services and businesses moving away from plastic across Australia.

Self-locking mailer boxes survive courier handling and open like a present. That practical detail matters because a box that fails in transit costs you the food, the customer's goodwill and often a refund. A well-made box does the opposite: it protects the product, carries your brand into homes and offices, and gives people a reason to remember where the food came from.

You can see standard sizes and options on our Food Mailer Boxes page, or browse the wider range of eco & shipping food boxes.

Where food mailer boxes work best

Most orders for food mailer boxes come from businesses packing online food orders and gift deliveries, but the same box often ends up doing several jobs across a menu or product range.

• Online food orders: a box that photographs well brings free exposure on social media.
• Gift deliveries: the box has to hold its shape from the counter to the customer's table.
• Bakery mail orders: presentation matters as much as protection, so the print needs to be sharp.
• Sample packs: staff need a box that folds up fast when orders stack up.

If your range covers more than one of these, it is usually cheaper to settle on two or three standard sizes and print them all with the same artwork than to order a different design for every item.

Box styles for food mailer boxes

The structure of the box decides how fast it folds, how well it protects the food and how it looks when opened. These are the styles we make most often for food mailer boxes:

• Roll-end mailer: A roll-end mailer locks without tape, survives courier handling and opens like a present.
• Mailer with insert: A roll-end mailer locks without tape, survives courier handling and opens like a present.

If none of these fits, we can combine features, for example adding a window to a tuck box or an insert to a lid-and-base box. Your dieline is drawn around the food, so the finished box fits properly.

Size guide for food mailer boxes

These are the sizes customers ask for most often. They are a good starting point, but every box can be made to your exact dimensions.

As a rule, allow 5 to 10 mm of clearance on each side of the food and more on top if it has icing, toppings or a domed shape. Too much space lets food slide around; too little crushes it or smears it on the lid.

What should food mailer boxes be made from?

The right board depends on the weight of the food, how far it travels and the look you want. For food mailer boxes the usual options are:

• Kraft paperboard: Unbleached kraft has a natural brown finish that suits rustic, organic and eco-minded brands. It prints best with bold one- or two-colour artwork, because the brown base shifts lighter colours.
• E-flute corrugated board: A thin corrugated board around 1.5 mm thick that adds crush strength and a little insulation while still printing cleanly. It is the standard for pizza boxes, mailers and heavier food orders.
• SBS paperboard: Solid bleached sulphate board gives a bright white surface for sharp, full-colour print. It is the usual choice for retail cartons and bakery boxes, and is commonly specified between 300 and 400 gsm depending on the weight of the food.

The main risk to plan for with this type of packaging is courier handling, stacking pressure and temperature swings in transit. Choose the board and any inside coating with that in mind, not just the print.

Printing options for food mailer boxes

Most food mailer boxes are printed in one of three ways, and the right one depends on your quantity and artwork.

• Offset CMYK: sharp full-colour print for photos, gradients and detailed designs. Best value on larger runs.
• Spot colours (Pantone): exact brand colours that stay consistent between orders. Worth it if colour matching matters to you.
• Digital print: no plates, so it suits short runs, test designs and seasonal versions.

On kraft board, bold one- or two-colour designs usually look better than full photos, because the brown base changes how colours appear. Our CMYK vs Pantone guide explains the difference in more detail.

Making food mailer boxes more sustainable

Paperboard food mailer boxes are one of the easier food packaging items to make sustainable, because the main material is widely recycled in Australia when it is clean.

• Choose kraft or recycled-content board where the look suits your brand.
• Use a film-free window or no window at all, so the box stays a single material.
• Ask for water-based barrier coatings rather than plastic laminates where grease resistance is needed.
• If you want compostable packaging, ask for certification to AS 4736 (industrial) or AS 5810 (home composting).
• Add clear disposal instructions, such as the Australasian Recycling Label, so customers know what to do with the box.

Most states have also phased out many single-use plastic food items, so paper-based boxes help keep you ahead of the rules. Check your state's current list, as it changes.

The ordering process, step by step

Ordering food mailer boxes is simple, and you see a proof before anything is printed.

1. Request a quote with your size, quantity and any style ideas using our quote form.
2. Get a dieline: a flat template of your box showing folds, cuts and print areas.
3. Add artwork: send your own, or ask our team to lay out your logo and details.
4. Approve the proof: check spelling, colours and positions carefully.
5. Production: printing, finishing, cutting and gluing, typically 10–15 business days.
6. Delivery: boxes arrive flat-packed, ready to fold.

Not sure how a dieline works? Read how to read a packaging dieline.

Frequently asked questions about food mailer boxes

Ready to get started?

The best food mailer boxes are the ones that fit the food, suit the way your team works and look like they belong to your brand. Measure carefully, choose board for the conditions the box will face, and keep the design clear and consistent.

When you're ready, see the full specification on our Food Mailer Boxes page or request a free quote. We'll send a dieline and price for your exact size.