Charleston, SC · 300 sq ft
10x30 storage prices in Charleston
12 branches in Charleston stock a 10x30 (300 sq ft), at $0.45 a square foot for the cheapest. Prices run $134 to $467, a 249% gap.
| Location | Area | Units listed | Cheapest online | Range at this branch | Regular rate | Rating |
|---|---|---|---|---|---|---|
| 2560 Ashley Phosphate Road | Charleston 29418 | 2 | $134 | $134–$186 | $200 | 4.7 |
| 616 Johnnie Dodds Bl | Mt Pleasant 29464 | 2 | $154 | $154–$171 | $230 | 4.8 |
| 5715 Dorchester Road | Charleston 29418 | 2 | $175 | $175–$196 | $263 | 4.8 |
| 6654 Dorchester Road | Charleston 29418 | 1 | $201 | — | $301 | 4.8 |
| 3366 Ladson Road | Ladson 29456 | 2 | $225 | $225–$258 | $337 | 4.6 |
| 8470 Dorchester Rd | North Charleston 29420 | 1 | $242 | — | $364 | 4.6 |
| 1833 Sam Rittenberg Blvd | Charleston 29407 | 3 | $249 | $249–$314 | $373 | 4.8 |
| 2363 Ashley River Road | Charleston 29414 | 2 | $260 | $260–$360 | $390 | 4.6 |
| 101 Prescott Way | Goose Creek 29445 | 1 | $270 | — | $406 | 4.8 |
| 2046 N Main St | Summerville 29483 | 1 | $278 | — | $416 | 4.7 |
| 5508 N Rhett Ave | North Charleston 29406 | 1 | $291 | — | $437 | 4.6 |
| 3180 Marginal Rd | Charleston 29414 | 1 | $467 | — | $701 | 4.7 |
Hilton Head Island is 27% cheaper, 94 km away
| Market | Distance | Median 10x30 | vs Charleston |
|---|---|---|---|
| Hilton Head Island, SC | 94 km | $181 | -27% |
Where these numbers come from. 12 advertised prices read from Public
Storage's own published listings across 12 locations, last checked
2026-08-12.
Online rate vs regular rate. Every listing publishes two figures. Measured across thousands of observations, the regular rate is 1.5× the online rate at the median, with 88% inside 1% of that and none outside 1.40–1.60×. That is a pricing rule, not a second quote. The online rate is the promotional price for booking on the web; the regular rate is what the unit reverts to. Budget on the regular rate. Comparisons here hold the basis constant, so the gap between locations is real either way.
These are advertised rates for new rentals, not quotes — Public Storage states prices are not guaranteed and they move with availability. Insurance, admin fees and limited-time offers are not included.
Online rate vs regular rate. Every listing publishes two figures. Measured across thousands of observations, the regular rate is 1.5× the online rate at the median, with 88% inside 1% of that and none outside 1.40–1.60×. That is a pricing rule, not a second quote. The online rate is the promotional price for booking on the web; the regular rate is what the unit reverts to. Budget on the regular rate. Comparisons here hold the basis constant, so the gap between locations is real either way.
These are advertised rates for new rentals, not quotes — Public Storage states prices are not guaranteed and they move with availability. Insurance, admin fees and limited-time offers are not included.