How to Send Large Parcels in Australia: Measure, Pack, Book

To send a large or heavy parcel in Australia, measure and weigh it first, work out the cubic weight, pack it so it can’t move, and then compare real quotes for those exact dimensions before you book. Prices for big parcels differ a lot between carriers, so the quote comparison is where the savings are. On Sendaparcel you enter the size and weight once, see quotes from several couriers side by side with a clear price breakdown, and pay no platform booking fee.
Sendaparcelsendaparcel.com.auCompare Quotes for Large ParcelsEnter your parcel’s packed dimensions and weight to compare courier options, see clear price breakdowns, and avoid platform booking fees.VisitTL;DR
- Big parcels are priced on the greater of actual weight and cubic weight, so a light but bulky box can cost more than a small heavy one.
- Measure the packed parcel, not the item, and use those exact numbers for every quote.
- A smaller box, tight fit and strong tape cut both damage risk and cost.
- Standard parcel services have size and weight caps. Check them for your parcel before you pack or book.
- Compare carriers on one screen, with insurance and same-day options visible, rather than quoting one at a time.
Table of Contents
- What counts as a large or heavy parcel?
- How cubic weight works, with an example
- Step 1: Measure and weigh the packed parcel
- Step 2: Choose the smallest box that protects the item
- Step 3: Check the limits before you book
- Step 4: Compare delivery options
- Step 5: Insure it and book
- How to cut the cost of sending large parcels
- If you send large parcels regularly
- Get a quote for your large parcel
- Our view: price the space, not just the weight
- FAQ
- Sources
What counts as a large or heavy parcel?
There is no single national definition. Each carrier sets its own limits for weight, length of the longest side and total volume, and a parcel that is routine for one service can be over the limit for another. In practice people use “large” for anything that no longer fits a satchel or a regular carton, and “heavy” for anything a single person struggles to lift comfortably.
Three numbers decide how your parcel is treated:
- Actual weight, what it weighs on a scale once packed.
- Longest side, which often triggers a surcharge or a different service before weight does.
- Cubic weight, the weight the carrier bills for the space your parcel takes up.
The third catches most senders out. A pillow, a foam mattress topper, a flat-pack shelf or a pet bed weighs very little but fills a truck like a much heavier box.
How cubic weight works, with an example
Cubic weight is a way of charging for space. One widely used domestic formula multiplies length by width by height in metres and then by 250 kg per cubic metre. Put another way, multiply the three sides in centimetres and divide by 4,000. The carrier then bills whichever is greater, actual weight or cubic weight, as explained in this Australian ecommerce breakdown.
Worked example: you are sending a bed pillow set packed in a box that is 60 cm × 50 cm × 40 cm and weighs 3 kg.
- Volume: 60 × 50 × 40 = 120,000
- Divided by 4,000 = 30 kg cubic weight
- Billed weight: 30 kg, not 3 kg
The same source notes that for large, light products such as homewares, pet bedding and foam-filled goods, dimensional pricing can inflate the billed weight by 200% to 400%. Cutting the box to 50 × 40 × 30 cm drops the cubic weight to 15 kg, half the billed weight, from a few centimetres of trimming.
Carriers differ in the divisor they use, so treat the formula as a guide and let the quote be the final word. That is one reason comparing is worth it: the same box can land at a different billable weight with different carriers.

Step 1: Measure and weigh the packed parcel
Measure after packing, because cushioning adds centimetres. Use a tape measure and a bathroom or luggage scale.
- Record length (the longest side), width and height in centimetres, rounded up to the next whole centimetre.
- Include any bulge. If a side bows out, measure at the widest point.
- Weigh the finished parcel, not the item alone.
- Write the three dimensions and weight on a note, and use the same numbers every time you quote or book.
Where it goes wrong: quoting with the item’s dimensions and then having the carrier re-measure the packed box. Adjustments after pickup can add a charge you did not see at checkout. Entering accurate numbers up front is the simplest way to keep the price you were shown.
If you ship the same sizes repeatedly, such as a standard carton for a product line, Sendaparcel lets you save parcel sizes in your dashboard so you do not re-enter them each time.
Step 2: Choose the smallest box that protects the item
The cheapest big parcel is the smallest one that still survives the trip. An oversized box with lots of filler costs more in cubic weight and still lets the item move.
- Pick a strong carton. For heavy items use double-wall cardboard, and reinforce seams with strong tape rather than relying on the factory glue alone.
- Leave about 5 cm of cushioning on every side for fragile goods, and less for sturdy items.
- Fill every gap. Items that rattle when you shake the box will shift in transit. Use paper, bubble wrap or foam so nothing moves.
- Protect corners and edges. Corners take most of the knocks, so add corner protectors or folded cardboard to frames, mirrors, panels and furniture.
- Seal with the H-method. Run tape along the centre seam and both edges, then repeat on the bottom.
- Put the label on the largest flat face and keep a copy of the address inside the box.
If you want to see what a thorough protective job looks like, what a packing service includes is a useful checklist of materials and methods for awkward, high-value items.
For very long items, such as a rolled rug, a surfboard or a curtain rod set, a tube or a purpose-sized carton usually beats a large rectangular box on both cost and strength.

Step 3: Check the limits before you book
Every carrier publishes limits, and they vary by service. Before choosing, check four things for your parcel:
| Check | Why it matters |
|---|---|
| Maximum weight | A heavy parcel can fall outside a standard service entirely |
| Longest side | Long items may need a different service or carry a surcharge |
| Total volume or cubic weight | Decides billable weight, even if the actual weight is low |
| Contents | Liquids, batteries, aerosols and other dangerous goods have special rules, and some can’t be sent at all |
Also check the practical side: whether the parcel is picked up from your door or must be dropped off, whether the receiver needs to be home, and whether delivery is to a business address or a residence. A heavy parcel that needs a signature, sent to a home where nobody is in during the day, is the classic route to a failed delivery.
That is where redelivery fees matter. Sendaparcel shows redelivery fee information alongside the price so you know what a missed delivery could mean before you commit.
If an item is beyond what standard parcel services accept, for instance a full-size sofa or a pallet of stock, it is a freight job rather than a parcel job. Freight is priced by pallet or volume and usually involves a tailgate truck. For anything that fits parcel limits, a courier booking is simpler and faster.
Step 4: Compare delivery options
For most large parcels in Australia you are choosing between three broad routes.
| Route | Best for | Watch out for |
|---|---|---|
| Parcel post | Lighter parcels within size caps, not urgent | Caps on weight and size, cubic weight charges |
| Courier | Heavy or bulky parcels, tighter delivery windows, door pickup | Prices vary widely by carrier and route |
| Freight | Pallets, furniture, very large or very heavy loads | Priced differently, may need a delivery site with truck access |
Couriers are where comparison pays off. Carriers price big parcels differently by route, and the cheapest option for Sydney to Melbourne is not always the cheapest for Brisbane to Perth. Metro-to-metro runs usually cost less than regional or remote deliveries, and rural postcodes tend to add time and cost.
The quickest way to see the spread is to put your measured numbers into one comparison. Sendaparcel returns real-time quotes from multiple carriers for the same parcel, so you can see price against speed and choose. For specific routes, see our guides to couriering from Sydney to Melbourne and interstate courier options.
If the parcel has to arrive today, say a replacement part or a gift, check same-day courier options for your area.
Step 5: Insure it and book
Heavy and bulky items are more likely to be knocked about and are often worth more. Insurance is included with Sendaparcel bookings by default, so you do not have to remember to add it at the last step.
Before you pay, check three things on the quote:
- The service speed and the pickup or drop-off arrangement
- The price breakdown, so you can see what makes up the total
- The delivery address details, including unit numbers, access notes and a phone number
Then print the label, attach it securely and hand the parcel over or leave it for pickup as instructed. Track it from your dashboard until it is delivered.
How to cut the cost of sending large parcels
You can rarely reduce the weight of a big item, but you can often reduce what you pay for it.
- Shrink the box. Every centimetre off the longest side lowers cubic weight. Re-measure after repacking.
- Remove dead space. Flatten items that can be flattened, and pack soft goods tightly. Fill gaps with scrunched paper, not another box.
- Split or combine wisely. Two small parcels can be cheaper than one oversized one, and sometimes the reverse. Quote both.
- Quote more than one carrier. Prices for the same parcel differ, so a comparison is the fastest saving.
- Choose speed to suit the need. Standard delivery usually costs less than express or same-day.
- Ship to a staffed address. A work address avoids redelivery fees.
For wider tactics, see our 12 practical ways to reduce shipping costs and what parcel shipping costs in Australia.
If you send large parcels regularly
Sellers and frequent shippers face the same problem repeatedly: big parcels, many destinations, and a margin that disappears if the freight line grows. A few habits help.
- Audit your cartons. Check cubic weight per product and choose the smallest safe box for each.
- Save your parcel sizes so quoting is a click.
- Book in bulk. Sendaparcel supports Excel bulk uploads for many shipments at once.
- Connect your store. Integrations cover Shopify, WooCommerce, eBay and Wix, so orders flow into bookings.
- Bring your own courier account. If you already have a negotiated rate, you can use it inside the platform.
- Earn rewards. Regular shipments earn rewards.
If you sell through marketplaces, our guide to Facebook Marketplace shipping shows how to quote a buyer’s postcode before you agree a price, and shipping products from home covers the set-up.
Get a quote for your large parcel
The fastest way to find a fair price for a bulky or heavy parcel is to enter its measured size and weight and compare. Sendaparcel shows real-time quotes from multiple carriers, includes insurance by default, charges no platform booking fee and breaks down the price so you can see what you are paying for. Parcel, satchel and same-day deliveries are all booked in the same place.

Compare quotes for your parcel on Sendaparcel and book once you have the price that suits the job. If cost is your main concern, start with cheap courier options.
Our view: price the space, not just the weight
Most people who write to us about a big parcel ask the wrong question first. They ask what the weight costs. The better question is what the space costs, because that is what carriers bill when a box is large and light.
That is why we built the platform around real-time quotes from multiple carriers and a price breakdown you can read. When you see several quotes for the same measured parcel, the spread tells you more than any rate card could. You are not guessing which carrier suits a bulky item; you are choosing between prices that are in front of you.
We also think a quote should be the price, so we charge no platform booking fee, include insurance by default and make redelivery fees clear. Those are the points where large parcel costs tend to surprise people, and we would rather they didn’t.
For frequent senders, the same thinking scales: saved parcel sizes, bulk uploads, store integrations and rewards for regular shipping. Good things add up.
Aeros
FAQ
What is the cheapest way to send a large parcel in Australia?
Usually it is a smaller box and a comparison of several carriers’ quotes for the same measured parcel. Trimming the box lowers cubic weight, and carriers price the same parcel differently by route. Sendaparcel puts those quotes on one screen with no platform booking fee.
How do I send a heavy parcel?
Weigh the packed parcel, use a strong double-wall carton with tight cushioning, and check the weight limit for the service before booking. Enter the exact weight and dimensions in a quote so the price matches what the carrier will bill. Add the receiver’s phone number and any access notes.
What is cubic weight and why does it matter?
Cubic weight is the weight a carrier charges for based on the space a parcel takes up. One common domestic formula is length × width × height in centimetres divided by 4,000. The carrier bills the greater of actual and cubic weight, so a big, light box can cost as much as a heavy one.
Can I send bulky items like furniture as a parcel?
It depends on the size and weight of the item once packed. If it fits within the carrier’s limits it can travel as a parcel. If it is much larger, such as a full sofa or a pallet, it is a freight job and is priced differently.
Is insurance included when I book large parcels?
Yes, on Sendaparcel insurance is included by default on bookings. Check the quote at checkout for the details that apply to your shipment.