What Size Storage Unit Do You Need for a 3-Bedroom House?
Imagine a family preparing to move out of a three-bedroom house. The beds are coming apart, and boxes are stacking up near the front door. Meanwhile, the living room furniture still needs a place to go. They need enough storage space for the move, but they do not want to pay for a unit that is much larger than their belongings require.
This is an illustrative moving scenario, not a documented RAD Mini Storage customer story. It shows the decision many households face when choosing a storage unit.
For a typical three-bedroom household with a moderate amount of furniture, appliances and moving boxes, a 10×20 storage unit is a practical starting recommendation. It measures 10 feet by 20 feet and provides 200 square feet of floor space. At RAD Mini Storage in Imperial, California, the standard rate is $169 per month, plus a $29 administration fee and required tenant protection starting at $10 per month. A lighter or partial load may fit a 10×15, while a full house inventory that includes major appliances and garage contents may call for a 10×24. The right size depends on what you plan to store, not just the number of bedrooms.
Which Storage Unit Size Fits a Three-Bedroom House?
Use the belongings you intend to store to choose a starting size. These are planning recommendations, not guarantees that every household will fit.
| Storage size | Floor area | Best fit | Inventory triggers |
|---|---|---|---|
| 10×15 | 150 sq. ft. | Light or partial three-bedroom load | Selected bedroom furniture, a sofa, a few dressers and boxes, with major items staying at the house or going elsewhere |
| 10×20 | 200 sq. ft. | Typical three-bedroom inventory | Furniture from several rooms, beds and mattresses, dining furniture, dressers, appliances and a moderate number of boxes |
| 10×24 | 240 sq. ft. | Full house plus appliances and garage contents | Most household furniture, several large appliances, extensive boxes, garage shelving, tools, outdoor equipment or other bulky belongings |
A 10×15 may work if you are storing only part of the house. For example, you might need a few bedroom pieces, a sofa, some boxes and selected household items while leaving the dining set, appliances or other furniture in place.
A 10×20 is the better starting point when the inventory includes furniture from most rooms. It can accommodate a substantial household load, but oversized sectionals, several large appliances and a high volume of boxes can make the layout tight.
Consider moving up to a 10×24 if you intend to store nearly everything from the house along with a refrigerator or freezer, washer and dryer, garage shelving, tool chests, outdoor furniture or bulky recreational equipment. These items can take up substantial space alongside the household furniture.
For a broader comparison of available unit sizes, see the storage unit sizes guide.
How Big Is a 10×20 Storage Unit?
A 10×20 storage unit measures:
- Width: 10 feet
- Length: 20 feet
- Floor area: 200 square feet
Cubic feet: a conditional estimate. If a unit has an 8-foot ceiling, the calculation is:
10 ft × 20 ft × 8 ft = 1,600 cubic feet.
As a rough moving reference, a 25-foot moving-truck load is often compared with a 10×20, while a 20-foot load is often compared with a 10×15; actual fit varies with the truck’s usable cargo space and the belongings.
How Many Boxes Should You Plan for?
For a typical three-bedroom household, roughly 45 to 80 moving boxes is a planning estimate, not a verified universal average. It assumes a moderate household inventory, ordinary moving boxes and a mixture of furniture and boxed belongings. A household with extensive books, kitchenware, decorations, clothing or stored items may need more boxes. A partly furnished home or one that has already been decluttered may need fewer.
Use a room-by-room estimate to build your own count:
| Area | Illustrative box estimate |
|---|---|
| Main bedroom | 10–15 |
| Bedroom two | 6–10 |
| Bedroom three or home office | 6–10 |
| Kitchen and pantry | 10–15 |
| Living room and dining area | 8–12 |
| Bathrooms, linen storage and miscellaneous items | 5–8 |
| Total planning range | 45–70 |
This table is a starting worksheet, not a measured standard. about 45 to 80 boxes allows for variation in what is packed and how much household storage is included. Count your boxes as you pack, then replace the estimates with your actual numbers.
How to adjust the estimate: Plan toward the lower end if you have already decluttered, own fewer possessions, use some furniture drawers for suitable items, or are storing only selected rooms. Plan toward the higher end or beyond it if you have extensive kitchenware, books, children’s belongings, decorations, linens, garage storage or items accumulated in closets and cabinets.
Count large items separately. Sofas, mattresses, bed frames, dining tables, dressers, appliances and shelving use space that a box count cannot represent. Measure oversized belongings. A large sectional or a deep cabinet can affect the layout more than several small boxes. Do not choose a unit based on the box estimate alone. Use the count alongside your furniture list, appliance list and any garage or outdoor belongings.
How Much Floor Space Does an Aisle Use?
An aisle can make it easier to reach belongings stored farther inside the unit, but not every storage load needs a full-length walkway.
For illustration, a 2-foot-wide aisle running the full 20-foot length of a 10×20 would use: 2 ft × 20 ft = 40 square feet, or 20% of the unit’s 200-square-foot floor area.
That calculation assumes a continuous, unobstructed aisle along the full length. It is not a fixed deduction that every renter must make. You may arrange your belongings differently, leave access only where needed or pack the unit more tightly if you do not expect to retrieve items often. The practical trade-off is between fitting more belongings and keeping the items you need accessible.
Does an Apartment Need a Different Size Than a House?
The property’s type can help you think about the load, but it does not determine the unit size. The belongings being stored matter more than the label on the property.
Apartment example: A three-bedroom apartment with compact furniture, limited appliances and no garage inventory may need a 10×15 if you are storing selected rooms. If you are moving all the furniture, appliances and boxes from the apartment, a 10×20 may be the more useful starting point.
House example: A three-bedroom house with large bedroom sets, a sectional sofa, dining furniture, major appliances and a garage containing tools, shelving and outdoor equipment may need a 10×24 if you are storing nearly everything.
A house with minimal furniture can need less space than an apartment packed with belongings. List the large items first. Then estimate the boxes, and decide whether you need an aisle or access to specific items later. If your move involves a one-bedroom apartment instead, see what size storage unit for a 1-bedroom apartment fits a typical one-bedroom inventory.
If your move involves a two-bedroom apartment instead, see what size storage unit for a 2-bedroom apartment fits a typical two-bedroom inventory.
RAD Mini Storage Rates for These Unit Sizes
RAD Mini Storage is located at 611 E 12th St, Imperial, CA 92251, serving storage needs in Imperial and the wider Imperial Valley, including El Centro and Brawley.
| Unit size | Standard monthly rate | Additional required cost context |
|---|---|---|
| 10×15 | $129/month | Plus a $29 administration fee and required tenant protection starting at $10/month |
| 10×20 | $169/month | Plus a $29 administration fee and required tenant protection starting at $10/month |
| 10×24 | $189/month | Plus a $29 administration fee and required tenant protection starting at $10/month |
The monthly rate is not the complete cost by itself. Allow for the $29 administration fee and the required tenant protection plan, which starts at $10 per month. Your actual total depends on the applicable rental terms and selected qualifying protection coverage.
If the 10×20 fits your inventory, check availability and rental details through the RAD Mini Storage rental page.
Which Size Should You Choose?
Use these practical checks before making the final decision:
Choose a 10×15 if you are storing a light or partial load and can leave substantial furniture, appliances or other belongings out of storage.
Start with a 10×20 if you are storing a typical three-bedroom household inventory with furniture from several rooms and a moderate number of boxes.
Consider a 10×24 if you are storing nearly the entire house along with major appliances, substantial garage contents or other bulky items.
Recheck the inventory if you are unsure. Count the boxes. List the largest furniture pieces and appliances, and include garage or outdoor belongings.
Allow for access needs. If you need to reach items after loading, consider how the arrangement will affect the usable floor area.
The goal is to choose a unit that accommodates your actual load without assuming that every three-bedroom household has the same storage needs.
If your inventory is closer to a partial move, review the 10×15 storage unit guide. If you are comparing a typical household load with the 10×20 option, use the 10×20 storage unit guide.
FAQs
Is a 10×20 big enough for a three-bedroom house?
It can be a practical starting point for a typical three-bedroom inventory with furniture from several rooms, appliances and a moderate number of boxes. A heavily furnished home with major appliances and garage contents may need a 10×24. A partial load may fit in a 10×15.
When should I choose a 10×24 instead of a 10×20?
Consider a 10×24 if you plan to store nearly all the household furniture and boxes along with bulky extras such as a sectional, several large appliances, garage shelving, tools or outdoor equipment. The final choice depends on the actual size and quantity of your belongings.
Will 45 to 80 boxes fit with my furniture in a 10×20?
The 45-to-80-box figure is a planning estimate for a typical three-bedroom household, not a guarantee of fit. Whether those boxes fit alongside your furniture depends on the number and size of large items, box dimensions, stacking and the layout you need.
Should I leave an aisle inside the storage unit?
Only if it suits how you plan to use the unit. A full-length, 2-foot-wide aisle in a 10×20 would occupy about 40 square feet, or 20% of its floor area. You may need less access space or arrange the contents differently, depending on what you store and whether you need to retrieve items later.
Does a three-bedroom apartment always need a smaller unit than a three-bedroom house?
No. Property type is only a proxy for storage needs. A lightly furnished house may need less space than an apartment with more belongings. Compare the furniture, appliances, boxes and any garage or outdoor contents you plan to store.
How much does a 10×20 cost at RAD Mini Storage?
The verified standard rate is $169 per month, plus a $29 administration fee and required tenant protection starting at $10 per month. Check the rental page for current availability and applicable rental details.
Final Recommendation
For a typical three-bedroom household with a moderate amount of furniture, appliances and boxes, start by evaluating a 10×20 storage unit with 200 square feet of floor space. If you are storing only selected rooms, a 10×15 may be sufficient. If you are storing nearly the entire house plus major appliances and garage contents, consider a 10×24.
At RAD Mini Storage in Imperial, the standard 10×20 rate is $169 per month, plus a $29 administration fee and required tenant protection starting at $10 per month. Base the final choice on your inventory and the access space you need, then use the RAD Mini Storage rental page to check availability and rental details.
