Data sources
This site uses three datasets: standard US storage unit dimensions, a catalog of packed household item volumes maintained in-house, and national cost reference ranges aggregated from published operator list prices. Each is documented below with its basis and review cycle.
The three datasets
| Dataset | Contents | Basis | Review cycle |
|---|---|---|---|
| Storage unit dimensions | 8 standard US sizes with floor area, volume and door specifications | Standard sizes offered across major US self-storage operators | Annually, or when a size becomes common |
| Household item volumes | 95 items with packed cubic feet and typical loaded weight | Mover cube-sheet conventions, cross-checked against manufacturer dimensions for appliances and standard carton sizes | Twice a year |
| Cost reference ranges | Monthly ranges by size, standard and climate-controlled, plus market multipliers and fee ranges | Aggregated published list prices across major US operators | Twice a year — current review August 2026 |
What we do not use
No scraped facility-level pricing. Individual facility rates change weekly and republishing them would be stale on arrival.
No ZIP-code price data. We publish market-type multipliers instead, which are honest about their resolution.
No AI-generated figures. Language models do not produce any number on this site. Where AI assists with drafting prose, every figure in that prose is verified against the dataset before publication.
No invented reviews or ratings. There is no rating markup on this site because there are no ratings to mark up.
Open data
The household item catalog is published in full as CSV and JSON, and the complete capacity model — units, densities and assumptions — is available as a single JSON file. See the dataset page for structure and licensing.
If you use it, a link back is appreciated but not required. If you find an error in it, please tell us — corrections to the dataset propagate to every page on the site at the next build.