Choosing the right storage unit size can feel harder than it should. You do not want to pay for more space than you need, but you also do not want to rent a unit that is too small and realize halfway through moving that everything will not fit.
Whether you are moving into a new apartment in Lehi, clearing out the garage, storing furniture during a remodel, or making space for seasonal items, the right unit size depends on what you plan to store, how often you need to access it, and whether your items need extra protection from Utah’s temperature swings.
This Lehi storage unit size guide will help you compare common storage unit sizes, understand what typically fits in each, and choose the best option for your situation.
Before choosing a unit, make a quick list of your items. You do not need a perfect inventory, but it helps to group things by category.
Common storage categories include:
Once you have a rough list, think about two questions:
If you will be visiting your unit often, you may want a little extra room for a walkway.
If so, you may want to consider an indoor or temperature-controlled storage unit.
A 5x5 storage unit is similar to a small walk-in closet. It is a good fit when you only need a little extra space but do not want your apartment, closet, or garage packed with things you rarely use.
A 5x5 unit can typically hold:
This size is especially helpful for apartment renters in Lehi who need extra closet space but do not need to store large furniture.
A 5x5 unit is usually not the best fit for large furniture, full bedrooms, appliances, or bulky garage items. If you are storing furniture from even a small apartment, you will likely want to move up to a 5x10 or larger.
A 5x10 storage unit is about the size of a large walk-in closet. For many renters, this is one of the most practical small storage options because it can handle more than boxes while still staying compact.
A 5x10 unit can typically hold:
This size is a strong choice if you are moving between apartments, storing dorm furniture, or trying to free up space without renting a large unit.
If you need to store the contents of a full one-bedroom apartment, a 5x10 may work only if you pack carefully and do not have many oversized pieces. For easier loading and more breathing room, a 10x10 may be a better fit.
A 10x10 storage unit is one of the most versatile storage sizes. It is roughly the size of a small bedroom and can usually hold the contents of a one-bedroom apartment, depending on how much furniture you have.
A 10x10 unit can typically hold:
This size is a good option if you are moving, remodeling, or storing furniture during an apartment transition. It gives you more flexibility than a small unit and makes it easier to organize your items instead of stacking everything tightly from floor to ceiling.
For Lehi residents moving into or out of an apartment, a 10x10 can be a practical middle-ground size: not too large, but big enough for furniture, boxes, and household items.
A 10x15 storage unit gives you more room for larger furniture and multi-room storage. If you are storing the contents of a two-bedroom apartment or need temporary storage during a home renovation, this size may be a better fit than a 10x10.
A 10x15 unit can typically hold:
This size is also helpful if you want to keep your items more accessible. Instead of packing everything wall to wall, you can leave a narrow path through the unit so you can reach boxes or furniture later.
If you are not sure whether a 10x10 or 10x15 is right, consider how much large furniture you have. Bulky items like couches, recliners, dining tables, mattresses, and appliances use space quickly.
A 10x20 storage unit is closer to the size of a standard one-car garage. It is commonly used for whole-home storage, larger moves, major renovations, or storing large furniture collections.
A 10x20 unit can typically hold:
This size can be useful if you are between homes, downsizing, remodeling, or need temporary storage while coordinating a move.
For long-term storage, a larger unit can also make organization easier. You can use shelves, label sections, and leave walking space instead of stacking everything tightly.
It is tempting to choose the smallest unit possible to save money. In some cases, that works well. But there are times when renting slightly more space is worth it.
Consider a larger unit if:
A unit that is technically big enough may still be frustrating if every item has to be packed tightly. If convenience matters, allow extra space.
Once you have a general size in mind, the next step is choosing the right type of storage unit.
Indoor storage units are a good option when you want your items stored inside a building rather than accessed directly from the drive aisle. These can be a good fit for boxes, furniture, household goods, documents, and apartment overflow.
Drive-up storage units are convenient when you are moving heavy items, loading furniture, or making frequent trips. Being able to park near your unit can make the move-in process easier and faster.
Temperature-controlled storage is a smart option for items that may be affected by heat, cold, or seasonal temperature changes. In Utah, this can matter for wood furniture, electronics, documents, artwork, instruments, and other sensitive belongings.
If you are storing anything valuable, delicate, or difficult to replace, temperature-controlled storage may be worth considering.
Here is a simple way to narrow down your options.
For closet overflow, seasonal items, and small furniture, start with a 5x5 or 5x10. For a full apartment move, look at a 10x10 or 10x15.
If you are between move-out and move-in dates, choose a unit that gives you room to unload quickly. A 10x10, 10x15, or 10x20 may be best depending on your home size.
For garage, closet, or seasonal overflow, a 5x5, 5x10, or 10x10 is often enough. The more furniture you add, the more likely you are to need a medium unit.
For furniture, appliances, and household goods during a renovation, consider a 10x10 or larger. Choose enough space to protect items from scratches and avoid overstacking.
For records, supplies, tools, or inventory, choose a unit based on both volume and access. If you will visit often, leave room for aisles and organization.
The right packing strategy can help you fit more into your unit and protect your belongings.
Use sturdy boxes that stack well. Label each box on more than one side. Place heavy boxes on the bottom and lighter boxes on top. Disassemble furniture when possible, and store screws or hardware in labeled bags taped to the item. Use furniture covers, mattress bags, and protective padding for pieces you want to keep clean.
If you need access to certain items, place them near the front of the unit. Seasonal decor, tools, business supplies, or frequently used gear should not be buried behind furniture.
For medium and large units, consider leaving a narrow walkway down the center. It may reduce the total amount you can pack into the unit, but it makes the space much easier to use.
If you are between two sizes, think about your goal.
If your goal is the lowest cost and you only need to store a few items, the smaller unit may be enough. If your goal is convenience, easier access, or safer furniture storage, the larger unit may be the better choice.
You can also compare available storage units online and choose based on what is currently available, your move-in timeline, and the type of items you need to store.
Fort Knox Storage offers storage options for Lehi residents, including self storage, temperature-controlled storage, and vehicle storage options. Whether you are moving, decluttering, or making room at home, the right unit can help you keep your belongings organized and accessible.
Ready to find the right fit? Reserve a storage unit online with Fort Knox Storage.