Square footage is only floor area. A tall, regular-shaped unit with safe stacking can hold more than a low or awkward unit with the same advertised size. Ask for internal dimensions, ceiling height and any columns or pipes before deciding.
Approximate starting ranges
| Typical use | Starting range | Check before booking |
|---|---|---|
| A few boxes or suitcases | 6–12 sq. ft. | Shelf width and door opening |
| Student or seasonal belongings | 10–20 sq. ft. | Largest item and stacking limit |
| Furniture from a small flat | 20–50 sq. ft. | Sofa/mattress dimensions and lift access |
| Renovation or business inventory | 40 sq. ft. and up | Walkway, loading bay and delivery frequency |
These are planning ranges, not a guarantee. Item shape, ceiling height, shelving and safe stacking can materially change the space required.
Measure before comparing prices
- List large items that cannot be compressed or dismantled.
- Record length × width × height, including protective wrapping.
- Group stackable boxes by identical footprint and safe stack height.
- Add a walkway if anything must remain reachable during the rental.
- Confirm the unit door, corridor and lift can pass the largest item.
Frequently asked questions
Can I estimate storage from my flat size?
Only as a rough starting point. Two homes of the same size can contain very different furniture, so measure the actual items and account for access space.
Should I leave a walkway inside the unit?
Yes if you need access during the rental. For sealed short-term storage you may pack more densely, provided stacking remains stable and within provider rules.