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The most reliable way to size a moving truck, trailer, or container is to inventory everything that will move, estimate each item’s packed volume in cubic feet, total the allowances, and compare that total with the exact equipment’s published cargo capacity. Bedroom-count charts are useful only as a rough check because two homes with the same number of bedrooms can contain very different amounts of furniture, boxes, storage, and outdoor equipment.
Why an inventory is more accurate than counting bedrooms
A “two-bedroom move” does not describe a standard amount of cargo. One household may have minimalist furniture and little storage; another may have a home office, a full garage, patio furniture, exercise equipment, a large sectional, and several years of boxed belongings. Closets, basements, attics, sheds, pantries, and outdoor areas are often where estimates go wrong.
Start with the belongings that will actually travel. Include furniture, appliances, packed cartons, items still in use, and anything stored outside the main living rooms. Flag unusually bulky or awkward pieces separately. A piano, sectional sofa, commercial freezer, workshop bench, safe, treadmill, or large outdoor playset may consume more practical loading space than its simple dimensions suggest.
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Use cubic feet as a planning unit, not as a guarantee. A cubic-foot estimate helps you compare alternatives, but real loading depends on shape, packaging, stackability, access, and how tightly a crew can place each item.
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Step 1: Build a complete moving inventory
Walk the property room by room
Use a spreadsheet, notebook, or moving-space calculator and make one line for every item or item group. Walk in a fixed order so that you do not rely on memory:
- Living rooms, family rooms, and foyers
- Bedrooms, closets, and linen storage
- Kitchen, pantry, and dining areas
- Bathrooms and utility rooms
- Home offices, playrooms, and hobby rooms
- Basement, attic, crawl-space, and indoor storage
- Garage, shed, workshop, and other outbuildings
- Patio, balcony, yard, and garden storage
- Items held at a friend’s house, a rented locker, or another address
Record items that are not packed yet. Estimating only the cartons already sealed can understate the final load substantially.
Separate standard items from exceptions
Use ordinary categories for beds, dressers, chairs, tables, bookcases, appliances, and cartons. Create a separate “oversized or difficult” list for items that cannot be dismantled, stack poorly, require padding, or must remain upright. Ask the mover or equipment provider about these items before booking if they are heavy, fragile, unusually tall, or restricted.
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Count cartons by size
Do not record only “50 boxes.” Separate small, medium, large, book, dish, and wardrobe cartons. If you know the outside dimensions, use them. Carton labels such as “medium” are not standardized across every manufacturer, so the box’s actual dimensions are preferable.
Step 2: Convert each item into cubic feet
Use measured dimensions when available
For a rectangular item, multiply length by width by height. If measurements are in inches, divide the result by 1,728:
cubic feet = (length in inches × width in inches × height in inches) ÷ 1,728
For example, an 18-by-18-by-16-inch carton is 5,184 cubic inches, or exactly 3 cubic feet. Use the outside packed dimensions when padding, assembled parts, or the carton itself adds space.
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Use published allowances consistently
When you cannot measure every object, use one allowance set consistently rather than mixing unrelated charts. The U.S. Moving Protection Organization gives representative planning figures of about 3 cubic feet for a medium moving carton and roughly 50 cubic feet for a three-cushion sofa. Moving.com gives illustrative ranges instead: a three-seat couch at 30–50 cubic feet, a queen bed at 60–80 cubic feet, a six-chair dining table at 50–70 cubic feet, and a large appliance at 60–80 cubic feet.
Those differences are not an error to average away. They show that allowances depend on whether a source is describing the object, its packaging, or the practical space it occupies in a loaded vehicle. Pick one method, document it, and apply it to the whole inventory.
| Example item | Published planning allowance | How to use it |
|---|---|---|
| Medium moving carton | About 3 cubic feet (U.S. Moving Protection Organization, undated guidance accessed 2026) | Multiply by the number of cartons that are actually medium size; measure your cartons if possible. |
| Three-cushion sofa | Roughly 50 cubic feet (U.S. Moving Protection Organization) | Treat as a representative allowance; a deep sectional or heavy padding may need more. |
| Three-seat couch | Approximately 30–50 cubic feet (Moving.com, undated article accessed 2026) | Choose a value that reflects the couch’s packed dimensions and whether cushions travel separately. |
| Queen bed | Approximately 60–80 cubic feet (Moving.com) | Include the mattress, box spring, frame, headboard, and protective packaging. |
| Six-chair dining table | Approximately 50–70 cubic feet (Moving.com) | Account for the tabletop, legs, chairs, and padding rather than the table alone. |
| Large appliance | Approximately 60–80 cubic feet each (Moving.com) | Use the packed footprint; refrigerators and washers may need upright clearance. |
Step 3: Add the allowances without double-counting
Multiply each allowance by its quantity, then add the subtotals. Keep a column for quantity, a column for cubic feet per item, and a calculated total.
| Category | Quantity | Allowance each | Subtotal |
|---|---|---|---|
| Medium cartons | 40 | 3 cubic feet | 120 cubic feet |
| Three-cushion sofas | 2 | 50 cubic feet | 100 cubic feet |
| Queen beds | 2 | 70 cubic feet planning value | 140 cubic feet |
| Large appliances | 4 | 70 cubic feet planning value | 280 cubic feet |
| Inventory subtotal | 640 cubic feet |
The example uses a single internally consistent set of allowances for illustration. It is not a prediction for every household. If an online calculator supplies the total, check which rooms and item categories it includes, what allowances it applies, and whether it rounds the result. A calculator’s number is useful only when its inventory matches yours.
Step 4: Compare your total with the exact equipment
Equipment capacities vary by provider, model, body design, and the way “usable” space is defined. Compare your inventory with the current specification for the exact truck, trailer, or container you can reserve—not with a generic truck-length chart.
| Source or equipment example | Published capacity or range | Qualification |
|---|---|---|
| 12-foot truck | Up to 450 cubic feet | The Home Depot Canada 2018 guide; an illustrative estimate, not a universal current capacity. |
| 16-foot truck | 826 cubic feet | The Home Depot Canada 2018 guide; recommendations are explicitly approximate. |
| 22-foot truck | 1,200 cubic feet | The Home Depot Canada 2018 guide; verify the current model with the rental provider. |
| 26-foot truck | 1,400 cubic feet | The Home Depot Canada 2018 guide; do not apply this figure to every 26-foot vehicle. |
| 24–26-foot trucks | About 1,700–2,000 cubic feet | Moving.com’s broader illustrative range; it differs from the Canadian guide. |
| U-Pack moving trailer | Approximately 1,944 cubic feet of loading space | U-Pack’s stated capacity for its trailers; it does not describe all moving trailers. |
| U-Pack ReloCube container | 308 cubic feet per container | U-Pack’s stated capacity for each ReloCube; confirm how many containers your inventory requires. |
The conflicting truck figures are why averaging charts is unsafe. Use the provider’s current cargo specification and ask whether the number is gross interior volume, usable floor space, or a planning estimate. If a provider quotes linear feet rather than cubic feet, request its conversion method and compare every option against the same inventory.
Step 5: Add room for items that do not stack efficiently
A mathematical total assumes that every inch can be used. A real load contains curved furniture, gaps around legs, protective blankets, fragile cartons, and objects that must remain upright. Moving.com suggests adding about 10–15% for awkwardly shaped or nonstacking items. Treat that as a rough rule of thumb, not a validated universal margin.
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Apply extra space deliberately:
- Add the margin to the categories that create gaps, rather than automatically inflating every carton.
- Include sofas, recliners, exercise machines, bicycles, lawn equipment, lamps, mirrors, and outdoor furniture in the awkward-item review.
- Allow for moving blankets, stretch wrap, cushioned wrap, and cartons around fragile pieces. These supplies protect items but do not make the underlying volume estimate more accurate.
- Keep a separate list of items that cannot be stacked on, under, or inside other pieces.
Safebound Space Check explains that its assigned allowances are planning values rather than geometric or certified measurements, and that its 3D view is not a guarantee of how a crew will load a truck. Treat any visualization the same way: useful for planning, never proof that the load will fit.
Bedroom and household ranges: useful as a sanity check
The U.S. Moving Protection Organization publishes broad household ranges. They can reveal an obvious undercount, but they should not replace your inventory.
| Home description | Approximate household volume | How to interpret it |
|---|---|---|
| Studio | 250–400 cubic feet | A broad prompt for questions, not a target. |
| One-bedroom apartment | 400–600 cubic feet | Actual storage and furniture density may move the total outside this range. |
| Two-bedroom apartment | 700–1,000 cubic feet | Check closets, storage lockers, and appliances separately. |
| Three-bedroom house | 1,300–1,800 cubic feet | Garage, attic, basement, and patio contents can add substantially. |
| Four-bedroom house | 1,800–2,500 cubic feet | Use the range only to identify a total that deserves another inventory pass. |
The Home Depot Canada guide uses another rough check: 150 cubic feet per fully furnished room. It says its recommendations are assumptions and should not be taken literally or exactly. Because these household methods use different definitions of “room” and “furnished,” do not combine them with item allowances to create a single authoritative formula.
A worked example: turning an inventory into an equipment decision
Suppose an apartment inventory totals 640 cubic feet before an awkward-item allowance. The list includes 40 medium cartons, two sofas, two queen beds, and four large appliances, plus ordinary chairs, tables, lamps, and clothing already included in the calculation.
- Calculate the inventory subtotal: 640 cubic feet.
- Identify nonstacking pieces, such as the sofas and appliances, and apply a provisional 10% planning margin: 64 cubic feet.
- Use a planning total of about 704 cubic feet for comparison, while labeling it as an estimate.
- Compare 704 cubic feet with the exact provider capacities available at your pickup location. A vehicle listed at 826 cubic feet has more nominal capacity than this planning total; a vehicle listed at 450 cubic feet does not.
- Ask the provider to review the complete list, especially if the sofas, appliances, or any item not represented by a standard allowance are unusually large.
This process does not guarantee a fit. It gives you a documented basis for choosing equipment and a clear list to update when you add or remove belongings.
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| Decision factor | Question to ask | Why it matters |
|---|---|---|
| Published usable capacity | What is the exact cubic-foot or provider-defined linear-foot capacity of this model? | Truck length alone does not identify cargo space. |
| Same inventory | Am I comparing every option against identical item and carton counts? | Changing the inventory makes the comparison meaningless. |
| Bulky-item handling | Can oversized, fragile, upright, or nonstacking items be accepted and loaded safely? | Special handling can consume more space than a simple volume calculation predicts. |
| Trip requirements | Must everything fit in one trip, or are multiple trips allowed? | A smaller option may work only if extra trips are practical and affordable. |
| Access and parking | Can the equipment reach and legally park at both addresses? | A vehicle that fits the inventory may still be unusable at a narrow street, low bridge, or restricted loading area. |
| Provider methodology | Is the figure a measured capacity, a planning allowance, or a calculator result? | Different methods should not be presented as directly interchangeable. |
For portable containers and trailers, ask whether the provider quotes the entire interior, usable loading area, or a standardized number of linear feet. For a truck rental, verify the current model, interior dimensions, wheel-well intrusion, door opening, and any load restrictions in the reservation terms.
Keep the estimate current as packing changes
Your first inventory is a baseline, not a permanent answer. Reconcile it during packing:
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- Mark every packed carton with its size and a sequential number.
- Update the count when a carton is repacked into a different size.
- Add donations, purchases, furniture acquired after the estimate, and items discovered in storage.
- Remove items that are sold, donated, discarded, or left behind.
- Recalculate the total before the equipment cancellation or modification deadline.
- Send the provider the final inventory, including oversized items and the updated carton count.
Wardrobe boxes and specialty cartons deserve their own counts. Home Depot Canada’s guide pairs household categories with small, medium, large, and wardrobe-box quantities, but those quantities are illustrative. Your clothing, books, dishes, and storage habits determine the actual number.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Common estimation mistakes and fixes
Using only the number of bedrooms
Symptom: The selected truck looks large enough on paper, but the garage, closets, or storage unit has not been counted.
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Mixing multiple allowance charts
Symptom: A sofa allowance from one source, carton allowance from another, and truck chart from a third are added as if they were measured using the same method.
Fix: Choose one item-estimation method, record its assumptions, and compare the result with the exact equipment specification.
Counting packed boxes but not remaining contents
Symptom: The estimate is finished before closets, pantries, drawers, or the attic are packed.
Fix: Count belongings still in use and reserve a line for every uninspected storage area.
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Treating a calculator or 3D view as a fit guarantee
Symptom: The tool reports a total, so no one checks unusual shapes or loading access.
Fix: Read the tool’s assumptions, identify nonstacking items, add a clearly labeled planning margin, and have the provider review the complete inventory.
Ignoring access constraints
Symptom: The cargo volume is adequate, but the truck cannot reach the driveway or loading zone.
Fix: Confirm vehicle dimensions, parking rules, street access, loading distance, elevator reservations, and any low-clearance or weight restrictions at both addresses.
Failing to update after decluttering or shopping
Symptom: The final load differs from the reservation inventory.
Fix: Reconcile the list immediately after major donations, furniture purchases, or storage discoveries and request a capacity review.
When to ask the provider for a capacity review
Request a human review when the inventory includes a piano, safe, pool table, commercial appliance, gym equipment, workshop machinery, unusually deep furniture, many fragile pieces, or a large outdoor collection. Also ask for confirmation when your calculated total is close to the published capacity, when the provider uses linear feet rather than cubic feet, or when different company charts produce materially different answers.
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Send the same information to every provider: item list, dimensions for exceptional pieces, carton counts by size, pickup and delivery constraints, and whether everything must move in one trip. A provider can then explain its own capacity definition instead of forcing you to reconcile incompatible charts.
Final checklist before reserving equipment
- Every room, closet, storage area, garage, shed, and outdoor space has been inspected.
- Cartons are counted by size, with actual dimensions used where available.
- Bulky, fragile, upright, and nonstacking items are listed separately.
- One consistent allowance method has been used for the inventory total.
- The total has been compared with the exact truck, trailer, or container model.
- Any 10–15% awkward-item margin is labeled as a rough planning suggestion, not a guarantee.
- Access, parking, elevator, and one-trip requirements have been checked.
- The provider has received the complete, updated inventory and confirmed the capacity.
The answer is not a bedroom number or a generic truck length. It is the volume of your specific belongings, estimated consistently, checked against the exact equipment, and reviewed for the space that real loading conditions make unusable.
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