Storage Planning Toolkit
How much storage space do you need?
Add your rooms or belongings and we will recommend a practical unit size, then carry the same plan into fit, layout, cost and packing tools.
- One shared item list
- Results in about two minutes
- Nothing uploaded
Published capacity model v1.0 · Free · No account
One plan. Every storage decision.
- Find my size Get minimum, recommended and comfortable sizes from the belongings you actually own. Start sizing →
- Check what fits Test one item list against any unit and see when the fit becomes too tight. Check my items →
- Visualize my unit Place furniture and boxes into a unit drawn to scale. Open visualizer →
- Compare sizes See space, capacity and monthly price side by side. Compare units →
- Estimate cost Estimate monthly rent, move-in fees and the twelve-month range. Estimate cost →
- Furniture volume Measure a custom item or choose from the 95-item catalog. Measure items →
- Build my inventory Create the item list used by the size, fit, layout and packing tools. Build inventory →
- Plan the load Decide what goes at the back, middle and front of the unit. Plan packing →
- Count moving boxes Estimate boxes, tape, paper and wrap before packing begins. Count boxes →
Storage unit sizes
- 5×5 A small walk-in closet. Fits part of one room, or about 56 medium boxes. Explore 5×5 →
- 5×10 A large walk-in closet or a garden shed. Fits studio apartment, or about 113 medium boxes. Explore 5×10 →
- 10×10 Half a standard one-car garage. Fits 1–2 bedroom apartment, or about 226 medium boxes. Explore 10×10 →
- 10×15 A large one-car garage. Fits 2 bedroom home, or about 340 medium boxes. Explore 10×15 →
- 10×20 A standard one-car garage. Fits 3 bedroom house, or about 453 medium boxes. Explore 10×20 →
- 10×30 A two-car garage. Fits 4–5 bedroom house, or about 680 medium boxes. Explore 10×30 →
What storage costs
| Unit size | Standard | Climate-controlled | Typically holds |
|---|---|---|---|
| 5×5 | $40–$75 | $55–$95 | Part of one room |
| 5×10 | $55–$110 | $70–$140 | Studio apartment |
| 10×10 | $90–$180 | $115–$230 | 1–2 bedroom apartment |
| 10×15 | $125–$240 | $155–$300 | 2 bedroom home |
| 10×20 | $160–$310 | $195–$380 | 3 bedroom house |
| 10×30 | $225–$440 | $270–$530 | 4–5 bedroom house |
How our estimates work
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One published model
Every capacity figure on this site comes from one model, published in full. A unit's gross volume is its floor area multiplied by an assumed 8 ft ceiling.
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Usable volume
Usable volume applies a packing-efficiency factor — 85% at moderate density — and subtracts a further 15% when you need an access aisle.
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Costs you can trust
Cost figures are national reference ranges aggregated from published list prices, not quotes, and are dated on every page.
Common questions
What size storage unit do I need?
It depends on the volume of your belongings, not on your floor plan. As anchors: a studio apartment is about 278 cubic feet (5x10); a two-bedroom apartment is about 630 cu ft (10x10); a three-bedroom house is about 1,168 cu ft (10x15 or 10x20). The storage unit size calculator works it out from your own item list.
How much does a storage unit cost?
Between about $40 and $440 per month in the US depending on size, with a 10x10 — the most common size — running $90–$180. Climate control adds 20–40%. See the the cost overview for the full breakdown.
What is the most common storage unit size?
The 10x10, at 100 square feet. It holds a one to two-bedroom home, which covers the most common reasons people rent storage — a move, a renovation or a downsize. See the /storage-unit-sizes/10x10/.
How tall is a storage unit?
Eight feet in most US facilities. Some newer buildings have 10 ft ceilings, which adds roughly 25% more usable volume for the same floor area.