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Find the right packaging for your online store with our complete eCommerce Mailers Size Guide. Compare everyday kraft mailers, padded mailers, and expandable mailers in sizes ranging from extra small to large. Whether you’re shipping clothing, accessories, or fragile items, this guide helps Australian businesses choose the perfect packaging to save on costs and deliver orders securely.
Padded Mailers
A sustainable, protective, and user-friendly alternative to traditional plastic bubble mailers.
Crafted from 100% recycled paper and certified with the Australasian Recycling Label (ARL), our padded mailer is kerbside recyclable and designed for effiecient and sustainable returns.
Click the illustrations to find out more
Expandable Mailers
A sustainable, space-saving solution for shipping items that don’t fit standard flat mailers.
Made from 100% recycled paper and certified with the Australasian Recycling Label (ARL), it’s kerbside recyclable and pairs perfectly with our Hex Honeycomb Paper for extra protection.
Click the illustrations to find out more
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Enter your details below to download a printable A5 eCommerce Mailer size guide.


FAQ
What are the standard eCommerce mailer sizes in Australia?
Common mailer sizes include extra small (255x280mm), small (215x280mm), medium (355x255x80mm), and large (440x420x100mm). Expandable, padded, and kraft mailers are available for different product types.
How do I choose the right size mailer for my products?
Choose a size that fits your product securely without too much extra space. For clothing and soft goods, kraft or padded mailers work well, while expandable mailers are ideal for bulkier items.
Are padded mailers better than kraft mailers for shipping?
Padded mailers provide extra protection for fragile or delicate products, while kraft mailers are a cost-effective option for lightweight items.
Can I save on postage by using smaller packaging?
Yes. In Australia, postage costs are often based on weight and dimensions. Choosing the smallest secure packaging can reduce shipping costs.
What’s the difference between expandable mailers and standard mailers?
Expandable mailers have gusseted sides, allowing extra room for thicker or multiple items. Standard mailers are flat and best for slim products.