A 10x20 is 200 square feet — roughly a one-car garage — and it's the largest standard unit most Miami facilities stock in real quantity. It's also the unit where "near me" matters most: availability at this size is thinner than the popular 10x10, prices swing $190 to $508/month across Miami-Dade, and the difference between a drive-up and an upper-floor indoor unit changes what you can actually store.
Here's what a 10x20 holds, what it costs in each Miami area, and how to find one near your ZIP without calling ten facilities.
What a 10x20 Unit Actually Holds
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At 200 sq ft with typical 8-10 ft ceilings, a 10x20 holds the contents of a 2-3 bedroom home or a full vehicle plus belongings:
- Full household: living room + 2-3 bedrooms of furniture, appliances, and 30-50 boxes
- Vehicle + gear: one car, motorcycle, or jet ski with room for boxes — this is the smallest unit that comfortably fits a standard car
- Business inventory: 200-400 boxes, shelving racks, equipment — the most common size for small-business overflow
- Boat/trailer: small boats up to ~17 ft trailered can fit with the door depth, though most boat owners use covered outdoor spaces instead
Size reality check: most renters underestimate. A 10x10 (100 sq ft) handles a 1-bedroom; jumping to 10x20 doubles capacity for only ~40-80% more cost — the price-per-square-foot drops as units get bigger, making 10x20 the best value if you're anywhere near the 10x10's ceiling.
10x20 Prices by Miami Area (2026)
| Area | Standard | Climate-Controlled | Inventory Notes |
|---|---|---|---|
| Hialeah / Medley | $190-$280 | $240-$350 | Best availability + prices |
| Homestead / Florida City | $180-$270 | $230-$340 | Cheapest in county |
| Kendall / Cutler Bay | $220-$320 | $270-$400 | Good suburban inventory |
| Doral / Airport West | $230-$350 | $280-$420 | Newer facilities, drive-up stock |
| Coral Gables / South Miami | $260-$380 | $320-$460 | Premium pricing, limited |
| North Miami / Aventura | $240-$380 | $300-$470 | Tight inventory |
| Brickell / Downtown / Beach | $280-$508 | $350-$520 | Very limited at this size |
Miami averages for 10x20: roughly $315-$320/month advertised — versus ~$200 standard / ~$269 climate for independent operators. The spread between cheapest (Homestead) and most expensive (Beach) is over $3,800/year for the identical unit.
Drive-up premium/discount: suburban drive-up 10x20s often price slightly lower than indoor climate units but command real demand — contractors and movers pay for the ability to back a truck to the door.
Drive-Up vs Indoor 10x20: The Decision
| Type | Pros | Cons | Best For |
|---|---|---|---|
| Drive-up outdoor | Back a truck to the door, fastest loading, cheapest | No climate control — Miami heat/humidity exposure | Furniture short-term, vehicles, contractor gear, anything rugged |
| Indoor climate-controlled | 55-85°F + humidity control — safe for everything | Elevator/longer walk, higher price | Household goods long-term, electronics, wood furniture, documents |
| Indoor non-climate | Building protection without climate price | Still humid inside in Miami summer | Short-term only, non-sensitive items |
The Miami rule at this size: for anything stored longer than a month — especially furniture, mattresses, clothing, electronics — climate control isn't optional. One mold-damaged sofa erases a year of the $40-$70/month "savings" from skipping it. See
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