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Cubic Feet:The Number That Decides What Your Move Costs
On an interstate move, almost everything you pay is driven by a single figure — the volume of your shipment. It is set before anything is loaded, usually by someone who spent twenty minutes looking at your home, and most people never check it.
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What a cubic foot actually is
A cubic foot is a box measuring twelve inches on every side. That is the whole definition. It is a unit of space, not weight — a cubic foot of books and a cubic foot of pillows are the same cubic foot, and you are billed the same for both.
The reason it governs your bill is that space is the thing your mover is actually selling. On an interstate move your belongings usually travel on a trailer shared with other households. What the carrier hands you is a reserved section of that trailer, moved a certain number of miles. Reserve more of the trailer and you pay more, because the space you occupy is space nobody else can be sold.
Some things to measure it against
Volume is hard to picture in the abstract, so it helps to fix a few reference points before you look at any estimate.
- 3cu ftMedium moving carton
- 50cu ftThree-cushion sofa
- 50cu ftWasher and dryer together
- 1,700cu ft26 × 8 × 8.5 ft26-foot box truck
- 3,900cu ft3,800–4,00053-foot trailer, usable
Typical industry figures, given as a reasonableness check rather than a standard any carrier is bound to. Trailer capacity varies with trailer type and how the load is stacked.
How movers arrive at your number
Your cubic footage is an estimate produced by a survey, and the survey method sets how reliable it is. The three in common use are not equally good, and you are usually free to ask for a better one than the one you are offered.
The video survey
You walk through your home on a video call, or record a walkthrough in an app, and an estimator identifies and logs what they see. Fast, and reasonably accurate when it is done thoroughly. The failure mode is simple: the camera only sees what you point it at.
Commonly missed: Closets that never got opened, the garage, attic, basement or shed, storage under beds and above cabinets, a patio the walkthrough skipped, boxes still in a unit across town, and anything described as “some odds and ends over there.”
The in-home survey
An estimator visits and walks the property. Generally the most reliable method, because a trained surveyor opens closets on instinct and asks about the attic without being prompted. Slower to schedule, and not every carrier offers it at short notice, but worth asking for on a larger household.
The phone or web-form estimate
A quote produced from a bedroom count and a short list recited over the phone. The least reliable number you can get, because it is limited to whatever you happened to remember while someone was talking to you.
Commonly missed: Treat it as a ballpark and ask for a real survey before you commit to anything.
What a typical household comes to
Before you accept anyone's figure, it is worth knowing roughly where your home should land. If a quote sits well below this range for your size of household, that is not a bargain — it is a number that has further to travel on load day.
Why estimates come in under
Estimates that land below the real volume are not always dishonest. Most of the time the same handful of things were left out, and they are worth knowing because every one of them is something you can catch yourself.
The rooms you do not think of as rooms
Garages, attics, basements, sheds, patios and laundry areas hold an enormous amount of volume and rarely get surveyed properly.
Loose items become boxes
A shelf of books occupies less space loose than packed. Once the mover boxes it you are paying for the carton's full volume, including the air inside it. Anything left unpacked will be packed for you, and it will grow.
Things still in use on survey day
Beds, televisions, the coffee maker, the contents of the closet you are still living out of. If it is going on the truck it counts, even if it is not packed yet.
The purge that never happened
People tell the estimator they are getting rid of the exercise bike and half the garage. Then moving week arrives and there was no time. The estimate was built on the smaller household; the truck loads the larger one.
Items in a second location
A storage unit, a relative's basement, a college dorm. If it is joining the shipment, it belongs in the inventory.
What happens when the number is wrong
On load day the crew measures the space your shipment actually takes up in the trailer. If it exceeds what the estimate reserved, you are handed a revised figure before the truck leaves — billed for the extra volume, plus the costs that follow it: additional cartons, more labour hours, and sometimes a shuttle the larger load now requires.
The difficulty is never really the arithmetic. It is the timing. You are being asked to approve a new price with your belongings already on the truck, on a day when the lease is up and the keys are due, which is the weakest negotiating position in the entire process. Every hour you spend getting the count right beforehand is an hour spent while you still have the option of saying no.
Why three quotes usually aren't a comparison
The standard advice is to collect three estimates. On its own that advice does very little, because each carrier sends its own estimator and builds its own inventory of the same house. You end up holding three prices for three different jobs.
Look at what happens when you put the volumes next to the prices. These figures are illustrative, but the pattern is the ordinary one:
| Quote | Volume counted | Price | Implied rate |
|---|---|---|---|
| Mover A | 950 cu ft | $4,900 | $5.16 / cu ft |
| Mover B | 1,240 cu ft | $6,100 | $4.92 / cu ft |
| Mover C | 1,100 cu ft | $5,600 | $5.09 / cu ft |
Illustrative figures for the same household, chosen to show the mechanism. They are an example, not measured data.
The prices differ by $1,200. The rates differ by pennies.
That is the whole problem in one line. Nobody here is quoting a better rate — they are quoting a different house. And the cheapest of the three is the one that counted the least of it, which also makes it the one most likely to be revised upward once the truck is being loaded.
The fix is unglamorous and it works: build one inventory yourself and give that same list to every carrier you are considering. Once volume is fixed, the only things left varying are rate, service, timing and terms — which are the things you actually wanted to choose between. It also removes any advantage in counting light, because a carrier bidding against a fixed inventory cannot win by seeing less of your home.
What a fair rate looks like once your volume is settled is a separate question, and we cover it with documented quotes on moving cost per cubic foot.
The minimum nobody mentions
Most carriers will not run an interstate shipment below roughly 350–400 cubic feet. Come in under that and you are billed at the minimum anyway. Ten medium cartons is about thirty cubic feet, and you would still pay for 350 or more.
This cuts in a direction most people do not expect. If your count lands near the threshold, adding items may cost you nothing at all, because that gap is space you have already paid for. It is worth asking the question directly: what is your minimum, and am I above it?
03,900 cu ft — full trailer
Cubic feet by item
Room by room, here is roughly what household items occupy. You do not need to measure anything to use this — count what you own against the list and you will land close enough to check a professional estimate against it.
| Item | Cubic feet |
|---|---|
| Boxes | |
| Small carton (book box) | 1.5 |
| Medium carton | 3 |
| Large carton | 4.5 |
| Extra-large carton | 6 |
| Dish pack / dish barrel | 5–6 |
| Wardrobe box | 10–11 |
| Large plastic storage tote | 3–4 |
| Living room | |
| Sofa, three-cushion | 50 |
| Loveseat | 35 |
| Armchair or recliner | 20–25 |
| Coffee table | 10 |
| End table | 5 |
| Bookcase, small | 10 |
| Bookcase, large | 20–25 |
| Flat-screen TV, 55 in., crated | 10–12 |
| Area rug, rolled | 10 |
| Floor lamp | 3 |
| Bedroom | |
| King mattress and box spring | 65–70 |
| Queen mattress set | 60 |
| Full mattress set | 50 |
| Twin mattress set | 30–35 |
| Bed frame and headboard | 10–15 |
| Dresser, double | 30–40 |
| Chest of drawers | 25 |
| Nightstand | 5–8 |
| Crib | 15 |
| Dining room | |
| Dining table | 25–30 |
| Dining chair, each | 5 |
| China cabinet or hutch | 40–50 |
| Buffet or sideboard | 25–30 |
| Kitchen and appliances | |
| Refrigerator | 45–60 |
| Range or stove | 25–30 |
| Washer | 25 |
| Dryer | 25 |
| Dishwasher | 20 |
| Upright freezer | 30 |
| Microwave | 3–5 |
| Office | |
| Desk | 20–25 |
| Office chair | 10 |
| File cabinet, four-drawer | 10–12 |
| Garage and outdoor | |
| Bicycle | 10–12 |
| Push lawn mower | 15–20 |
| Grill | 20–25 |
| Patio table | 20 |
| Patio chair, each | 8 |
| Extension ladder | 8–10 |
| Tool chest | 15–20 |
| Treadmill | 25–35 |
| Snow blower | 25–30 |
Typical industry figures. Individual pieces vary — an oversized sectional or an antique wardrobe can run well above the line shown here.
The inventory checklist
This is the practical version of everything above. Work through it before you accept any estimate, and again in the week before load day.
Cover the whole property
- Every bedroom, including closets, and under and on top of the beds
- Living areas, including bookshelves and media cabinets
- Kitchen cabinets and pantry
- Bathrooms, including the linen closet
- Garage, shed, basement, attic, crawl space
- Patio, balcony, deck and yard furniture
- Laundry room and utility areas
- Any off-site storage unit, or items held at a relative's home
Count honestly
- Include items you are still using on survey day
- Include anything you plan to sell or donate but have not yet
- Count boxes you have not packed yet, using a realistic number
- Note oversized or fragile items that will need crating
- Flag anything unusual: piano, safe, gun cabinet, aquarium, riding mower, motorcycle
Handle the survey properly
- Ask for a video or in-home survey rather than a phone quote
- Open every closet and cabinet on camera
- Do not let the estimator summarise a room you have not shown them
- Ask which items were excluded from the count, and confirm that list is correct
- If you are collecting several quotes, give every carrier the same inventory
Verify the paperwork
- Get the itemised inventory in writing, not just the total
- Ask what the carrier's minimum cubic footage is, and whether you are above it
- Read it line by line and look for rooms that are missing entirely
- Compare the total against the household ranges above
- Confirm the per-cubic-foot rate that applies to any overage, in writing
- Ask what triggers a shuttle and what it costs
Update before load day
- Tell your mover if you added items, kept things you planned to sell, or acquired anything new
- Do it as early as possible, while a revised estimate is still a conversation and not an ultimatum
Common questions
What is a cubic foot?
A cubic foot is a box measuring 12 inches wide, 12 inches deep and 12 inches tall. It is a unit of space, not weight. For scale, a standard medium moving carton is about 3 cubic feet, a three-cushion sofa is roughly 50, and a 53-foot moving trailer holds somewhere between 3,800 and 4,000 cubic feet of usable space.
How many cubic feet is my move?
As a rough guide, a studio runs 250–400 cubic feet, a one-bedroom apartment 400–600, a two-bedroom apartment 700–1,000, a two-bedroom house 1,000–1,300, a three-bedroom house 1,300–1,800 and a four-bedroom house 1,800–2,500. These are averages and real households vary widely, so treat them as a prompt to ask questions rather than a standard to meet.
Why do interstate movers price by cubic feet instead of by the hour?
A local mover's main cost is crew time, so it bills by the hour. On an interstate move your shipment usually travels on a trailer alongside other people's and may sit in transit for days. What the carrier is selling is a reserved section of that trailer moved a certain number of miles, so space is the constraint and space is the unit.
Is it better to be quoted by cubic feet or by weight?
Both are legitimate and both are in wide use. The practical advantage of volume is that you can check it yourself before anything is loaded — a carton is about 3 cubic feet and you can count cartons and measure rooms in advance. You cannot weigh a household. On a weight-based move the real figure does not exist until a loaded truck crosses a certified scale, by which point your belongings are on it. Federal rules do give you the right to observe the weighing and request a reweigh before unloading, but those are ways to contest a number after it exists rather than to know it beforehand.
What is a carrier's minimum cubic footage?
Most carriers will not run an interstate shipment below roughly 350 to 400 cubic feet, and if your goods come in under that you are billed at the minimum regardless. Ten medium cartons is about 30 cubic feet, and you would still pay for 350 or more. If your count lands near the threshold, adding items may cost nothing, because that gap is space you have already paid for.
What happens if my estimate is too low?
On load day the crew measures the space your shipment actually occupies in the trailer. If it exceeds what your estimate reserved, you are presented with a revised figure before the truck leaves, billed at a rate per cubic foot, plus knock-on costs like extra cartons, additional labour and any shuttle the larger load now requires. The difficulty is the timing: you are approving a new price with your belongings already on the truck, which is the weakest negotiating position in the whole process.
Why do three movers give me three different cubic-foot totals?
Because each one sends its own estimator and builds its own inventory of the same house. You end up comparing three prices for three different jobs, with no way to tell whether the cheapest carrier has a better rate or simply counted less of your home. The lightest count is also the one most likely to be corrected on load day.
How can I compare moving quotes properly?
Build one itemised inventory and give that same inventory to every carrier you are considering. Once volume is fixed, the difference between quotes is rate, service, timing and terms — which are the things you actually want to choose between. It also removes any advantage in counting light, because a carrier bidding on a fixed inventory cannot win by seeing less of your house.
Not sure your estimate is right?
We are a nonprofit. We will go through your inventory with you, check the carrier against the federal record, and tell you plainly whether the number you have been given is reasonable for the household you are moving. There is no cost, and we do not sell your details to lead generators.
Talk to a Move AdvisorOr call (202) 888-7810, Mon–Sat 8am–8pm ET.