Weight vs. cubic feet: how movers calculate cost
Full-service interstate movers typically price by weight — the actual pounds of your shipment, combined with distance. Moving containers and some brokers price by cubic feet — the space your items take up in the truck or container. The two aren't directly comparable, which is why quotes from different companies can look confusingly different for what seems like the same move.
How weight-based pricing works
Your shipment is weighed — often at a certified scale, both empty and loaded — and the difference is the billable weight. This is combined with the linehaul (distance) rate to produce the core cost. Non-binding estimates are adjusted to match this actual weight after loading, which is why weight-based quotes can change on moving day if the initial estimate was off.
How cubic-feet pricing works
Your shipment's volume — how much space it occupies — is estimated or measured, often based on room count or a video walkthrough, and priced per cubic foot. This method is common with moving containers and some brokers because it doesn't require a certified scale stop, but it means bulky, lightweight items (a stack of empty boxes, a large but light dresser) can cost more than their actual weight would suggest.
Which method costs more for your move?
- Heavy, dense items (books, tools, cast iron cookware, a weight bench) — weight-based pricing usually costs more relative to the item's size
- Bulky, light items (furniture, lampshades, empty bins, mattresses) — cubic-feet pricing usually costs more relative to the item's weight
- A typical mixed household — the two methods often land in a similar range, but ask for the specific number rather than assuming
How to compare quotes fairly
Before comparing two estimates, confirm each one's pricing method, not just the bottom-line total. A cubic-feet quote and a weight-based quote for the same household can differ significantly without either company doing anything wrong — they're measuring different things. See our full guide on how to compare quotes and avoid red flags.
Frequently asked questions
Which pricing method is cheaper?
Neither is inherently cheaper — it depends on what you're shipping. Heavy, dense items (books, tools, weight machines) cost more under weight-based pricing relative to their size. Bulky, light items (furniture, lampshades, empty storage bins) cost more under cubic-feet pricing relative to their weight.
How do I know which method a quote is using?
Ask directly — it should be stated on the written estimate. If it's not clear, ask the company to confirm before you compare that quote to any others, since the two numbers aren't directly comparable.
Can I negotiate which pricing method is used?
Rarely — most companies use one method as their standard practice (full-service van lines are usually weight-based; moving containers and some brokers are usually cubic-feet-based). It's more useful to know which method you're being quoted than to try to change it.
Why did my weight-based quote change after the move?
Weight-based non-binding estimates are adjusted to the actual weight measured at a certified scale after loading — if the actual weight is higher than estimated, the final bill goes up. This is exactly why binding or binding-not-to-exceed estimates exist, to cap that risk.