Why you should measure and weigh items at intake — not dispatch

Every parcel that goes out the door demands a packer stops to measure it, weigh it, and key in dimensions. Multiplied across every order, every day, that's a process that doesn't scale — and as your volumes grow, so does the bottleneck. The fix is simple: capture weights and dimensions once, when items arrive at the warehouse. After that, WRHS does the rest.

Once your items have weights and dimensions, WRHS automatically estimates the dimensions of any parcel by combining the cubic volume of all items in the order, taking the longest item dimension as the parcel length, and working out the other two sides from there.

The result is a tight estimate that assumes minimal empty space — which, as we'll see, suits the way most brands actually pack.

This is where people get thrown off. The dimensions WRHS generates are highly unlikely to match the carton your team actually packs into — and that's completely fine. Freight carriers don't care about the specific length, width, and height of a parcel. They care about cubic volume. A 30 × 20 × 15 parcel and a 24 × 24 × 15.6 parcel are billed the same, because they have the same cubic volume.

This catches people out all the time. An early WRHS customer even tried to source boxes that matched the calculator's dimensions — please don't do that. Pack into whatever carton makes sense for the order, and trust that the numbers line up where it actually counts: the total cubic volume the carrier will bill against.

If you're a vertical brand with branded packaging: Add your boxes to WRHS as custom packaging. You can add unlimited boxes, each with its own dimensions, tare weight, and barcode. During packing, your team scans items, then scans the box barcode — done. No dropdown selection, no measuring at dispatch. Your branded boxes go out half-full and that's fine, because that's the brand experience you've designed for.

If you're a wholesaler, reseller, or anyone without custom packaging: You're already collapsing cartons down to avoid paying for empty cubic volume. WRHS's calculation suits this perfectly — it assumes a tight pack with minimal empty space, which is exactly what you're already doing.

Either way, accurate item weights are non-negotiable. Every item that comes through the door needs a weight, full stop.

Once item weights and dimensions are in the system, they earn their keep across the whole warehouse:

And the big one: pack velocity. Removing the measure-and-weigh step at dispatch transforms how fast your team can pack. Single-item orders especially fly through — there's no nesting consideration, no measurement, just scan and ship.

The most common question: "What about when items nest inside other items during packing?"

Two things to keep in mind. First, the cubic calculation assumes zero empty space, but in reality most cartons end up with some empty space anyway — this naturally counteracts minor nesting. Second, for larger orders where heavy nesting is more likely, packers can simply measure that one parcel and update the dimensions in WRHS. Measuring the occasional heavily-nested order is dramatically faster than measuring every parcel that goes out the door.

A bit of training on how the calculation works goes a long way here. Packers learn to spot when an order has been compressed enough to warrant a manual override, and leave the rest to the system.

A manifest correction fee is what Australia Post charges when the weight or dimensions they measure at their sorting facility come in higher than what you declared at lodgement. They're real, and yes, they can be triggered when WRHS's calculated dimensions underestimate the actual parcel. But they happen less often than most people assume, because two conditions both have to be met before AusPost applies one:

Being 20% over on its own isn't enough. If your declared shipment was 3kg and the actual is 3.7kg, you're still in the 3–5kg bracket and no fee applies. The fee only kicks in when the difference pushes the parcel across a bracket boundary — say, from 3–5kg into 5kg+. In practice there's usually a lot of wiggle room, and they get applied far less often than the fear of them suggests.

The bigger picture is worth sitting with: calculated dimensions are a trade-off between speed and accuracy. You're trading a bit of shipping precision for a huge gain in pack velocity. Across the businesses we've seen go through this, the numbers aren't even close. A warehouse saving $10,000 a month in labour by not measuring at the pack bench will happily cop a $200 correction fee bill at the end of the month. Ask yourself which one you'd rather pay.

Capturing weights and dimensions across your catalogue is not the months-long project it might sound like. You can knock most of it out at the category or attribute level.

Export your items with their categories and key attributes like size, then group sensibly:

You don't need to measure every individual SKU. With a spreadsheet and a working knowledge of your catalogue, you can cover the vast majority quickly, then weigh and measure the outliers individually as needed.

The short version: stop measuring at dispatch. Capture it once at intake, let the system handle the rest, and reclaim the pack-bench time you didn't know you were losing.