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MOVING & RELOCATION

How Do I Find a Storage Unit and What Size Do I Need?

Answered by John Smart, AI-Certified Agent™ Philadelphia Metro Published September 23, 2026 · Updated September 23, 2026 803 words
Short Answer

Match the unit to your stuff: 5x5 for a room, 10x10 for a one-bedroom, 10x15 for two or three, 10x20 for a house. Compare climate control, access, and first-month pricing.

Sizing It Right, Room by Room

Storage units are sold by floor area, and the size that fits is usually bigger than people guess. As a rough guide: a 5x5 fits the contents of a room or closet, a 5x10 fits a small apartment, a 10x10 fits a one-bedroom with furniture, a 10x15 fits a two- or three-bedroom household, and a 10x20 fits a four-bedroom house. Larger houses and anyone storing appliances or a car-sized load should move up accordingly.

The estimate works best when you think in furniture, not boxes. A bed, sofa, dresser, and table consume a 10x10 quickly once you account for aisles, because units are not packing cubes, they are rooms you need to walk into. If the facility offers a rough calculator on its site, run your inventory through it, and when in doubt between two sizes, take the larger one and declutter instead.

Climate Control: When It Matters

Climate-controlled units keep temperature and humidity steady, and they matter more in Pennsylvania than the extra cost suggests. Pennsylvania's seasons swing from hot, humid summers to freezing winters, and the swing damages what ordinary units expose: wood furniture checking and warping, electronics corroding, mattresses absorbing moisture, paperwork yellowing, and anything leather, fabric, or vinyl degrading. If you are storing household furniture, electronics, documents, or photographs for more than a couple of months, climate control is the difference between storing your stuff and quietly damaging it.

Items that tolerate a standard unit comfortably include most outdoor gear, tools in sealed boxes, and non-porous items. Always ask about temperature range and humidity handling rather than taking the label at face value, and check the facility's policy on storing items like gasoline, paint, and other flammables, which most prohibit entirely.

The Gap-Move Strategy

The most common reason a move needs storage is a timing gap: your sale closes before your purchase, and the belongings have nowhere to go. In that case, book the unit for the week before your move-out, move the household directly into storage, and retrieve it when the new home is ready. A month of overlap usually covers the gap, and prorating or month-to-month terms make the timeline flexible.

Coordinate the move so it happens once: the mover or container unloads into storage on the first trip, and a second, shorter move retrieves it later. Alternatively, a portable storage container held at the facility can sit in storage until your closing, then deliver to the new address, avoiding a second load-out entirely.

Contracts, Insurance, and Access

Read the storage contract for the three things that cause surprises: access, insurance, and the fine print. Check the facility's access hours against your schedule, since some units are 24-hour and others close in the evening, and confirm whether your unit needs a gate code or an appointment. Ask what insurance covers the contents while stored, since most facilities require or sell their own policy and your homeowner's or renter's policy may not cover off-site storage.

Negotiate the first-month price, which facilities routinely discount to fill units, and clarify the rent, the late policy, the notice period to vacate, and how the unit is accessed if you lose the lock. Compare two or three nearby facilities on price, climate control, and access, and reserve after you see the actual unit, because the photo and the reality can differ.

Packing the Unit Like a Room, Not a Closet

How you pack the unit determines how much fits and how easily you can get to it, so pack like a mover, not a hoarder. Lay down pallets or plastic sheeting so nothing sits directly on the concrete, and build the load from heavy items at the back, large furniture upright with pads between pieces, and boxes stacked light-on-top in stable columns. Leave a clear aisle from the door to the back so every box stays reachable, and put the items you will need first near the front.

Shelving doubles the usable height of a small unit, and disassembling beds and tables before storage recovers floor area fast. Label the visible faces of every box rather than the tops, since you will read the labels from the aisle, and photograph the loaded unit for your records. Packed properly, a 5x10 can hold what feels like a 10x10, and stored properly, the contents emerge exactly where you left them instead of under a collapsed tower.

John Smart

Smarty's Advice Expert Insight

John Smart (Smarty) · Smarty Home Solutions / eXp Realty Agent, AI Certified Agent

Your Next Step for Storage

Size by furniture, not boxes, and add a cushion. Climate-control anything that would suffer in a Pennsylvania summer or winter, book a month of overlap for a closing gap, and see the unit before you sign.

John Smart, AI-Certified Agent with eXp Realty helps Philadelphia-area sellers and buyers manage the gap between closings, whether that means storage, a delay, or a flexible move date that lines everything up.

Call 215-598-6848 or schedule a free consultation. No obligation, just straight answers.

Related reading: Portable storage containers | Hidden moving costs | Compare selling options

John Smart

Answered by John Smart

AI-Certified Agent™ with eXp Realty | PA License RS348332

Serving Philadelphia, Montgomery, Bucks, Chester, Delaware & Berks Counties

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John Smart | AI-Certified Agent™ | License RS348332 | eXp Realty