Storage Unit Size Guide: Find the Right Fit for Your Belongings
Diverse Spaces & Sizes
Choosing the right storage unit is one of the biggest factors in having a smooth and stress-free storage experience. Selecting a unit that is too small leads to overcrowding and frustration, while choosing one that is too large can mean paying for space you do not need. At Security Self Storage, we offer a full range of unit sizes designed to fit everything from seasonal items to the contents of a multi-bedroom home.
This guide walks you through the most common unit sizes so you can confidently choose the right fit for your belongings.
5×5 Storage Unit
Fits boxes, seasonal décor, small furniture, and personal items—similar to a walk-in closet.
5×15 Storage Unit
Fits furniture and boxes from a small apartment, with extra length for sofas and mattresses.
10×5 Storage Unit
Fits a small bedroom’s contents, including a mattress, dresser, bike, and boxes.
10×8 Storage Unit
Fits furniture and boxes from a partial apartment or downsizing project.
10×10 Storage Unit
Fits the contents of a one-bedroom home, including furniture, appliances, and boxes.
10×12 Storage Unit
Fits one- to two-bedroom contents with extra room for larger or awkward items.
10×15 Storage Unit
Fits multiple rooms of furniture, large appliances, or business inventory.
10×14 Storage Unit
Fits furniture and boxes from a one- to two-bedroom apartment or home.
10×16 Storage Unit
Fits a two-bedroom home’s furniture and boxes with room to organize.
10×18 Storage Unit
Fits contents of a two- to three-bedroom home plus garage or outdoor items.
10×20 Storage Unit
Fits a full household’s furniture and boxes. Also great for equipment, inventory, or vehicles.
10×22 Storage Unit
Fits large household storage with extra depth for oversized furniture or equipment.
10×25 Storage Unit
Fits a two- to three-bedroom home’s contents, including furniture, appliances, and outdoor gear.
10×30 Storage Unit
Fits large homes, commercial inventory, or contractor equipment with maximum storage space.
Tips for Choosing the Right Storage Unit
Start by listing everything you plan to store and grouping items by size. Consider whether items need to be accessed over time and whether you will add more belongings in the future. When in doubt, many customers choose to size up slightly to avoid stacking items too tightly. Leaving space for a clear walkway inside the unit can also make your storage experience much easier.
Ready to Choose Your Storage Unit in Lancaster County
Security Self Storage offers a full range of clean, secure, and affordable units to support your home or business. If you are unsure which size is right for you, our team is happy to help you compare options and choose the best solution. Contact us or reserve your unit today.
Frequently Asked Questions
How do I know which storage unit size I need?
To choose the right size, start by listing the items you plan to store. Small units are great for boxes and seasonal items, medium units fit furniture from an apartment, and large units can hold furniture from a multi-room home. If you’re unsure, our team can help you estimate based on your inventory.
What does “5×5,” “10×10,” or “10×20” mean?
These numbers refer to the width and depth (in feet) of the storage unit. For example, a 10×10 unit is 10 feet wide and 10 feet deep, roughly the size of a small bedroom. These measurements help you visualize the space and compare sizes easily.
Can I change my unit size later if I need more or less space?
Yes. Most customers start with a unit and upgrade or downsize as their storage needs change. Just contact our team to ask about switching units or checking availability.
What size unit do I need for a car, motorcycle, or vehicle?
Vehicle storage needs vary by vehicle size. Smaller cars or motorcycles may fit in a 10×15 space, while larger cars, trucks, or SUVs may require a 10×20 or larger. We can help you find the right fit based on your vehicle’s dimensions.
How can I estimate how many boxes or pieces of furniture will fit in a unit?
A simple rule of thumb is: a 5×5 unit holds about 25–30 boxes, a 10×10 can hold furnishings from a one-bedroom apartment, and a 10×20 can fit most contents of a 3-bedroom house. For more accurate estimates, reach out with your list of items and we’ll help you plan.