Storage Unit Sizes: What Size Storage Unit Do I Need?

Renting the wrong unit costs you twice. Go too small, and your crew ends up playing Tetris with a sofa on moving day. Go too large, and you pay every month for empty air. Choosing a storage unit size gets easier once you know what each one holds, how your furniture translates into square footage, and which extras belong in the plan. This guide walks through every common size, matches each one to a home, and explains how to load a unit so you can reach what you need.

Storage Unit Size Chart at a Glance

Most facilities across Greater Boston rent the same standard footprints, typically with ceilings around eight feet high. Use this chart as a starting point, then adjust for bulky furniture, collections, or equipment.

A Closer Look at Each Storage Unit Size

5×5 Storage Unit: Overflow and Seasonal Items

A 5×5 works as an extra closet. It fits 15 to 20 medium boxes, holiday decorations, a folded crib, ski gear, or a small dresser. Renters in Somerville or Cambridge apartments often use this size to clear space without giving up items they use twice a year.

5×10 Storage Unit: Studios, Dorms and Small Apartments

The 5×10 storage unit is one of the most searched sizes online, and for good reason. It holds the contents of a studio apartment or dorm room: a queen mattress and frame, a dresser, a small couch, a television, and around 20 boxes. Stand mattresses on edge along the long wall to keep the floor open.

10×10 Storage Unit: A One-Bedroom Apartment

A 10×10 storage unit gives you 100 square feet, enough for a one-bedroom apartment with a sofa, bed, dining set, dresser, several lamps,s and 30 to 40 boxes. It is also the size many homeowners choose while staging a house for sale, since it clears out the bulky pieces that make rooms look smaller in listing photos.

10×15 Storage Unit: Two Bedrooms

Step up to a 10×15 for a two-bedroom apartment or a small house. You gain space for a second bed, a sectional, a desk, a washer and dryer and the boxes that come with a larger kitchen.

10×20 and 10×30 Units: Full Homes and Vehicles

A 10×20 storage unit matches a one-car garage and holds a three-bedroom home, including appliances and patio furniture. It also fits most standard cars, though that leaves little room for anything else. A 10×30 handles four bedrooms or more, the size many families need when a closing date slips or a renovation runs long.

What Size Storage Unit Do I Need? Three Questions to Answer First

Room counts only get you close. Before you sign a lease, answer these three questions:

• What are your largest pieces? A sectional, a piano, a king bed, or a large armoire can bump you up a full size on its own. Measure them and sketch the floor plan of the unit.
• How often will you need access? If you plan to pull items out regularly, leave a center aisle, which takes up a noticeable share of the floor space.
• How long will everything stay? For a few weeks between homes, a tight fit works. For long-term storage, give yourself breathing room so boxes are not stacked to the ceiling for months.

When in doubt, go one size up. The price difference between two neighboring sizes is usually smaller than the cost of renting a second unit once the first one fills up.

Is Climate-Controlled Storage Worth It in Massachusetts?

New England summers bring humidity, and winters bring deep freezes. Standard units track the outdoor temperature, which puts certain belongings at risk. Climate-controlled storage keeps temperature and humidity steady, and it earns its cost for:

• Wood furniture and antiques that crack or warp
• Pianos and other instruments
• Artwork, photographs, and important documents
• Electronics and vinyl records
• Mattresses and upholstered furniture that can absorb moisture

Home Team Moving offers storage in its own climate-controlled facility, so our crews can pack your home, protect your belongings, and deliver them when your next address is ready.

How to Pack a Storage Unit So You Can Find Everything

A well-loaded unit fits more and protects more. Our team loads self-storage units regularly, and the same principles apply every time:

1. Use uniform boxes. Same-size boxes stack straight and stay stable. Label moving boxes by room and contents to save hours when you come back for one item.
2. Load heavy items first. Place appliances, dressers, and heavy boxes against the back wall, then build forward with lighter pieces.
3. Go vertical. Stand sofas on end, stack chairs seat to seat, and remove table legs to use the full ceiling height safely.
4. Protect breakables. Wrap dishes and glassware carefully, and review how to pack fragile items for a move before you box them for storage.
5. Keep favorites up front. Place anything you might need, such as seasonal clothing, tools, or tax files, closest to the door.

Thoughtful loading matters most when someone else will need to reach the contents later. In our senior transition move case study, our team helped the family choose the right unit. It loaded it for accessibility rather than packing it tight, so they could retrieve items without unloading everything.

Self-Storage vs. Storage Through Your Mover

Renting a self-storage unit means you handle the truck, the loading, and the second trip out when you move into your next home. Storing with your mover combines those steps. The same crew packs, stores, and delivers, and you never touch the boxes in between.

That difference matters most when timing is uncertain. If you plan to sell and buy a house at the same time, storage with your moving crew keeps the gap between closings from turning into two separate moves. If you are still weighing a DIY approach, our comparison of PODS vs. movers vs. rental trucks lays out the tradeoffs for Massachusetts moves.

Frequently Asked Questions

How much fits in a 10×10 storage unit?

A 10×10 storage unit holds the contents of a typical one-bedroom apartment: a bed, sofa, dresser, dining table and chairs, plus 30 to 40 boxes. With careful vertical loading, it can also hold a lightly furnished two-bedroom apartment.

What size storage unit do I need for a three-bedroom house?

Plan on a 10×20 for most three-bedroom homes. If you own large furniture, a piano, or a full garage of tools and equipment, a 10×30 gives you the extra room.

Can movers load my storage unit for me?

Yes. Our storage movers load and unload self-storage units and portable containers, or they can store your belongings in our climate-controlled facility and deliver them when you are ready.

Choose the Right Size and Let the Crew Handle the Rest

The right unit comes down to three details: the size of your home, your largest pieces,s and how long everything will stay. Start with the storage unit size chart, go one size up if you are unsure, and load the unit with the heaviest items in back and daily needs in front. If you would rather skip the rental truck and the second trip, Home Team Moving, a Lexington-based moving company, can pack, store, and deliver your belongings in one plan. Call our team to talk through your timeline and find the storage option that fits it.