ShipStation does calculate shipping cost with its rate calculator feature.
You can use the calculator to see the cost of the shipping service you’re currently using for a shipment and compare it to other available services.
But ShipStation does not use the calculated cost to auto-select the cheapest rate for every shipment.
But, you can integrate a platform called String into your ShipStation account to automatically calculate the full shipping cost of every order and auto-select the cheapest shipping rate.
You can learn more about how String works here.
You can also get a free savings analysis from String by requesting a demo at www.meetstring.com.
Understanding cubic pricing is one thing. Actuallycapturing those savings on every single shipment is another.
The pitfalls are real: wrong box dimensions, inaccurate weights, automation rules that misfire, and adjustments that quietly eat into your margins. Even
platforms that claim to handle cubic pricing automatically can leave money on the table if your package data isn't dialed in.
That's exactly what String was built to solve. String automatically selects the right package size for each order and then compares cubic and standard
rates side by side — so you always ship at the lowest possible cost, every time, without any manual guesswork.
No spreadsheets. No second-guessing. Just optimized rates on autopilot.
If you're shipping dense, small-to-mid-sized products and you're not 100% confident you're capturing cubic savings on every label, it's worth a
conversation.
Click here to book a free shipping audit
We'll take a look at your current setup and show you exactly how much you could be saving.
