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Size guide
Envelopes are DL to B4 in size.
Envelope sizes
Dimensions (L x H)
What can it fit?
SmallS
DL/DLW
220 x 110mm
A4 documents folded into thirds
MediumM
C5
229 x 162mm
A4 documents folded in half
DL Max/DLX
235 x 120mm
LargeL
C4
324 x 229mm
Some unfolded A4 documents or
B4
353 x 250mm
A4-sized magazine or booklet
Keep in mind the size and weight of your envelope affects how much it costs to send.
Generally, sizes like ‘0’ are extra small. The higher the number, the larger the packaging.
We’ve grouped all satchels, bags and mailers into easy-to understand sizes.
You might have noticed different product codes and names – we’ve listed them below – plus suggestions on what might fit in each size, tips on how to measure and postage.
Extra small
Dimensions
W: 160 – 229mm
L: 100 – 170mm
What can they fit?
USB drive, pair of socks, watch (loose), makeup palette
Product name codes
PM0, PM1, Size 000, Size 00, Size 1
Small
Dimensions
W: 260 – 370mm
L: 190 – 261mm
What can they fit?
DVD in case, shirt (folded), book, pet toys
Product name codes
Small, ‘Enviro’ Size 1, PM2, Size 2, Size 4, TB1, TB2
Medium
Dimensions
W: 375 – 390mm
L: 260 – 385mm
What can they fit?
Jacket or jumper (folded), container of supplements, plush toy
Product name codes
Medium, ‘Enviro’ Size 3, Size 5
Large
Dimensions
W: 390 – 483mm
L: 285 – 405mm
What can they fit?
Cushion, sheet set (folded)
Product name codes
Large, ’Enviro’ Size 4, Size 6, Size 7
Extra large
Dimensions
W: 505 – 700mm
L: 400 – 600mm
What can they fit?
Backpack (flat), blanket or doona (folded), duffle bag
Product name codes
Extra Large, ’Enviro’ Size 5, ’Enviro’ Size 6, Size 12
How to measure
Postage
Size and weight become important when you use packaging to post with us.
- Sending 5kg or under in Australia using flat rate packaging? It’s eligible for flat rate postage.
- Sending 5kg or under in Australia using other packaging? Follow flat rate postage, based on weight.
- Sending over 5kg, or overseas? Postage costs will depend on the destination, delivery speed and chargeable weight of the package.
Read our guide on how to correctly calculate your postage, or try our postage calculator. Plus, our packaging tips has info on how to get your items to their destination safely.
We have a range of box shapes – some small and cube-shaped, others large and thin. The number after ‘BX’ doesn’t always tell you how big a box is, and height varies, even for large boxes.
We’ve grouped all boxes into easy-to-understand sizes.
You might have noticed different product codes and names – we’ve listed them below – plus suggestions on what might fit in each size, tips on how to measure and postage.
Small
Dimensions
L: 140 – 220mm
W: 150 – 160mm
H: 10 – 180mm
What can they fit?
Mug, candle, small book, mobile phone (in box), CD
Product name codes
Small, BX1, BX7, BX18, BX22
Medium
Dimensions
L: 240 – 310mm
W: 190 – 225mm
H: 102 – 120mm
What can they fit?
Large book or 2-3 books, tablet computer (in box)
Product name codes
Medium, BX2
Large
Dimensions
L: 390 – 410mm
W: 280 – 300mm
H: 80 – 255mm
What can they fit?
Laptop (in box), pair of shoes (in box)
Product name codes
Large, BX3, BX4, BX5, BX24
Extra large
Dimensions
L: 430 – 500mm
W: 277 – 440mm
H: 140 – 350mm
What can they fit?
Piles of documents/folders/files, small (carry-on) suitcase
Product name codes
Extra Large, BX20, BX23
How to measure
Postage
Size and weight become important when you use packaging to post with us.
- Sending 5kg or under in Australia using flat rate packaging? It’s eligible for flat rate postage.
- Sending 5kg or under in Australia using other packaging? Follow flat rate postage, based on weight.
- Sending over 5kg, or overseas? Postage costs will depend on the destination, delivery speed and chargeable weight of the package.
Read our guide on how to correctly calculate your postage, or try our postage calculator. Plus, our packaging tips has info on how to get your items to their destination safely.
Mailing tubes measure diameter by height, and tri-tubes measure length and width of the triangle base, by its height.
Mailing tube dimensions (Diameter x H)
Tri-tube dimensions (L x W x H)
What can it fit?
SmallS
60 x 420mm
81 x 81 x 420mm
Rolled A4 or A3 documents
MediumM
60 x 660mm
81 x 81 x 660mm
Rolled A2 documents
LargeL
90 x 850mm
121 x 121 x 850mm
Rolled A1 documents
Keep in mind the size and weight of your tube can affects how much it costs to send.
Envelopes
Satchels, bags and mailers
Boxes
Mailing tubes