Field Notes · May 3, 2026

What 'cubic feet' actually means for your move

Most moving quotes price your stuff by volume, not by room. "I have a 3-bedroom" tells your mover almost nothing — two 3-bedroom houses on the same street routinely differ by 50% in actual cubic feet, and that gap is the difference between a $5,000 quote and a $7,500 one.

Below: what cubic feet actually measures, why the math is uglier than your geometry teacher promised, and the rule-of-thumb numbers professional surveyors use when they walk through your house with a clipboard.

The unit, plainly

A cubic foot is a 1 ft × 1 ft × 1 ft block of space. A standard moving box (medium size) is roughly 3 cubic feet. A 26-foot rental truck holds ~1,700 cubic feet of cargo. A typical 3-bedroom household occupies somewhere between 3,000 and 4,500 cubic feet of truck space once it's loaded.

That last number is the one your mover is pricing against. Not the floorspace of your house. Not the number of bedrooms. The volume your stuff occupies after it's packed — wrapped in blankets, slotted into boxes, stacked on dollies, with all the weird voids real items create.

Why bedroom count is a bad proxy

Two houses with three bedrooms can differ by 1,500+ cubic feet. The variables that drive the gap:

How long you've lived there. The single biggest predictor. A family that's been in the house ten years has roughly 30–50% more volume than a family that just moved in three years ago. Stuff accumulates in basements, garages, attics, closets, and on the surfaces of every flat horizontal item.

Hobbies that own gear. A peloton, a kayak, a workshop, a mid-sized art collection, a kid who plays an upright bass. Each one is hundreds of cubic feet that won't show up in a "3-bedroom" estimate.

Furniture style. A minimalist's living room is 2 sofas, an ottoman, and a TV stand — maybe 200 cubic feet. The same room done in mid-century maximalism is 600+ cubic feet of furniture before you even count books.

Storage outside the main rooms. Garage shelving, basement bins, outdoor sheds. Movers who quote off "3-bedroom" alone often miss these entirely. They show up on move day, see them, and the binding estimate gets revised.

This is why every reputable mover insists on either a walkthrough or a video survey — they need to see the house, not just hear about it.

How surveyors actually estimate

Professional surveyors walk room by room and assign per-item cubic-foot values from an industry table. The table is roughly standardized across van lines because it's been built up over decades of actual loaded trucks.

A small selection:

| Item | Cubic feet | | --- | --- | | King mattress + frame | ~70 | | Queen mattress + frame | ~50 | | 3-seat sofa | ~55 | | Recliner | ~25 | | Dining table (6-person) | ~45 | | Refrigerator | ~60 | | Bookshelf (standard) | ~15 | | Floor lamp | ~3 | | TV (65") | ~12 | | Boxes (medium, 3 cu ft each) | n × 3 |

These are real industry averages. The cubic-foot value already accounts for how the item packs — disassembled where possible, with packing material and the void space between rectangular surfaces.

Surveyors total all items in a room, sum across rooms, then add a 10–15% buffer for awkward shapes and the things you forgot to mention. The buffered total is what your binding estimate is built on.

The 7-pound rule

Once you have cubic feet, weight estimation is straightforward. The industry default is 7 pounds per cubic foot for standard household goods. This is the number movers use to convert volume estimates into the weight-based linehaul rate they actually charge against.

A 3,500 cu ft household is therefore roughly 24,500 lbs. A 1,000 cu ft studio is ~7,000 lbs. For long-distance moves charged per pound, this conversion drives the headline price.

Heavier-than-average households (lots of books, dense furniture, gym equipment) run 8–10 lbs per cubic foot. Lighter-than-average households (modern minimalist, lots of soft goods) run 5–6.

Quick estimation by move size

If you don't want to itemize, the rough averages by move size:

| Move size | Average cubic feet | Average weight | | --- | --- | --- | | Studio / 1 BR small | 600–1,000 | 4,200–7,000 lbs | | 1 BR full | 1,000–1,500 | 7,000–10,500 lbs | | 2 BR | 1,500–2,500 | 10,500–17,500 lbs | | 3 BR | 3,000–4,500 | 21,000–31,500 lbs | | 4 BR | 4,500–6,500 | 31,500–45,500 lbs | | 5 BR + | 6,500–9,000+ | 45,500–63,000+ lbs |

These are averages. Your real number is somewhere in the range, and exactly where depends on how long you've owned the place, your furniture profile, and how much you've accumulated in non-bedroom rooms.

The point of running an itemized estimate isn't to skip these averages — it's to figure out where in the range you actually fall. A young couple in a 2-bedroom on year three might be 1,400 cu ft. The same square footage occupied by a family of four for a decade might be 2,800.

Why this matters before you call a mover

Three concrete reasons.

1. You can sanity-check quotes. If a mover quotes you 4,200 cubic feet and you've estimated 2,500 yourself, one of you is wrong — and now you can have that conversation. Without your own number, you're just trusting their math.

2. You can pick the right service tier. A 600 cu ft studio shouldn't be paying full-service rates. A 5,000 cu ft household should not be DIY-ing a one-way truck rental. Service tier is mostly a function of volume, and getting it wrong costs $1,000–$5,000.

3. You can plan packing. Volume tells you how many boxes, how many trips with the loader, whether your truck size is realistic. Without the number, "we'll figure it out" turns into a 14-hour move day.

How to estimate yours

Two paths:

By eye, room by room. Stand in each room. List the major furniture. Look up cubic feet per item from any industry table. Sum, add 15%. This works fine if you're moving a small household.

With a tool, room by room. Walk through with the calculator, tap the items in each room, get the buffered total in 10 minutes. Same logic, less arithmetic. The output is yours — copy the URL, take it to any mover.

Either way, you walk into the quote conversation with a number that's already been buffered, already itemized, and isn't going to drift on move day. That's what cubic feet actually buys you: a defensible position before the contract gets signed.