10x30 storage unit cost: $200 to $450 per month
The 10x30 is the largest standard self storage unit and the size for full 4-bedroom home contents, class C motorhomes, or substantial commercial inventory. National 2026 pricing runs $200 to $450 per month standard and $260 to $600 climate-controlled. Below: pricing breakdown, what fits, and the split-into-two-units arbitrage that is sometimes worth running.
National avg
$200 to $450
Climate
$260 to $600
Floor area
300 sqft
Per-sqft cost
~$0.88
What a 10x30 actually costs in 2026
A 10x30 self storage unit is 300 square feet of floor area at typically 8 to 12 feet ceiling height, giving 2,400 to 3,600 cubic feet of usable storage volume. The 2026 national rent band runs $200 to $450 per month standard and $260 to $600 climate-controlled, drawn from current pricing across Public Storage, Extra Space, CubeSmart, and U-Haul in April 2026.
Per square foot, a 10x30 averages $0.88, the lowest tier on the standard unit-mix grid. The economy of scale flattens above this size, and most facilities do not offer larger standard units (anything bigger is usually classified as commercial space and priced differently). The implication is that the 10x30 is the cheapest per-square-foot option you can get from a standard self storage operator.
The fee stack at this size scales up modestly: $15 to $30 admin fee at move-in, $25 to $40 monthly insurance (higher coverage limits for the higher inventory value), $10 to $15 disc lock, and a post-promo rate increase of 10 to 25 percent at month three to six. A 10x30 advertised at $329 with first-month-free typically settles at $389 to $415 by month four. The pattern is documented in Public Storage's 2024 10-K.
Two factors specific to the 10x30 size affect pricing. First, availability: many facilities have only 5 to 15 units of this size in their mix. When occupancy on 10x30s is high (above 90 percent), facilities often suspend promotions on the size or remove first-month-free from the offer mix. Second, geography: facilities in markets with high vehicle-storage and commercial-inventory demand (Florida, Texas, the Southwest) typically price 10x30 closer to the upper band, while urban markets price closer to the middle of the band even with very high land cost, because most urban renters do not need a 10x30.
10x30 prices in 10 representative US cities
10x30 monthly price by city / 2026
| City | Standard | Climate |
|---|---|---|
| Oklahoma City, OK | $124 to $186 | $161 to $242 |
| Memphis, TN | $140 to $210 | $182 to $273 |
| Phoenix, AZ | $188 to $282 | $244 to $367 |
| Atlanta, GA | $196 to $294 | $255 to $382 |
| Chicago, IL | $232 to $348 | $302 to $452 |
| Denver, CO | $240 to $358 | $312 to $465 |
| Seattle, WA | $292 to $432 | $380 to $562 |
| Boston, MA | $320 to $464 | $416 to $603 |
| Los Angeles, CA | $340 to $498 | $442 to $647 |
| New York, NY | $372 to $530 | $484 to $689 |
What fits in a 10x30
The split-into-two-units arbitrage
For a 10x30 use case where the inventory has two distinct zones (e.g., a vehicle plus household contents, or sensitive items plus weather-tolerant items), splitting into two units is sometimes cheaper than a single 10x30 and almost always more functional. The math works because facilities aggressively promote smaller units (where demand is heaviest) while leaving the largest sizes at full asking price.
A worked example. At a representative facility in Atlanta, a single 10x30 standard prices at $309 per month after promo. Two 10x15s at the same facility price at $179 each, totalling $358. The single 10x30 wins by $49 per month on rent. But add the second 10x15's climate option ($229 vs $179 standard), and you get a split that gives you 150 sqft of climate-controlled storage for sensitive items plus 150 sqft of standard for the rest, totalling $408. The pure climate 10x30 prices at $402 ($309 plus 30 percent climate). Split wins by $0 to $20 on functional fit even though monthly rent is similar.
The split also offers the practical benefits of separate access, separate locks (so multiple family members or business partners can independently access their own unit), and the ability to give up one unit later without breaking the entire storage arrangement. The downside is paying two admin fees ($30 to $60) and managing two contracts and two insurance policies.
Run the split-vs-single math at the specific facility you are considering. The arbitrage is most attractive when (a) the facility offers strong promos on 10x10 to 10x15 sizes, (b) you have a genuine need for two access patterns or climate types, and (c) the facility has both sizes available with the same access hours.