Storage Unit Size Guide

Storage solutions

Find The Right Storage For You

​Selecting the ideal storage unit size is crucial when renting from a self-storage facility. Finding the balance between a cramped space and unnecessary expenses is essential. To assist you in making an informed decision, we have prepared a comprehensive guide to help determine the perfect storage unit size for your specific needs.


Here at Flintlock Storage, we offer a range of storage unit sizes to accommodate various needs. The sizes we offer include 5x5, 5x10, 10x10, 10x15, 15x15, 10x20, and 10x25.

A long hallway filled with rows of blue storage units.
A black and white icon of a police hat with a cross on it.

pay Bills online

drive-up access

Small Unit Sizes

Our small storage units are perfect for freeing up some extra space. Ideal for storing dorm items between semesters, seasonal decorations, and small furniture items like chairs or bedside tables

5 x 5 Storage Unit

How big is a 5 x 5 storage unit?

  • A small-sized closet


What Fits in a 5 x 5 storage unit?

  • Several small to medium-sized boxes
  • Small furniture items like chairs or bedside tables
  • Seasonal items like holiday decorations or sporting equipment
  • Office supplies or files
An isometric illustration of a room with a bicycle , chairs , boxes and golf clubs.

5 x 10 Storage Unit

How big is a 5 x 10 storage unit?

  • A medium-sized walk-in closet
  • A small guest bathroom


What Fits in a 5 x 10 storage unit?

  • Mattress set (queen or twin size)
  • Small furniture items like a desk or dresser
  • Boxes of personal belongings or clothing
  • Bicycles or other recreational equipment
An isometric illustration of a storage room filled with furniture , boxes , a bicycle and a kayak.

pay Bills online

Medium Unit Sizes

​Our medium storage units are the ideal choice for moving between homes/apartments, house remodels, or looking to make some much needed space at home

10 x 10 Storage Unit

How big is a 10 x 10 storage unit?

  • Half a standard one-car garage
  • An average small bedroom


What Fits in a 10 x 10 storage unit?

  • Contents of a one-bedroom apartment including a mattress set, bed frame, and dresser
  • Sofas, chairs, and coffee table
  • Dining table and chairs
  • Appliances like a refrigerator or washer and dryer
  • Multiple boxes and storage containers
An isometric illustration of a room filled with furniture.

10 x 15 and 15 x15 Storage Unit

How big is a 10 x 15 and a 15 x 15 storage unit?

  • A large spare bedroom
  • Two-thirds of a standard garage


What Fits in a 10 x 15 and a 15 x 15 storage unit?

  • Contents of a two-bedroom apartment, including mattresses, bed frames, and dressers
  • Large appliances like a refrigerator or dishwasher
  • Dining table and chairs
  • Sofas, coffee table, and additional seating
  • Multiple boxes, storage containers, and additional household items
An isometric illustration of a room filled with furniture and boxes.

pay Bills online

Large Unit Sizes

Our large storage units are perfect for storing an entire household’s work of items. Ideal for storing deployments, home closings, full home renovations and even a small vehicle

10 x 20 and 10 x 25 Storage Unit

How big is a 10 x 20 and a 10 x 25 storage unit?

  • Multi-room house
  • Standard one-car garage


What Fits in a 10 x 20 and a 10 x 25 storage unit?

  • Contents of a small house, including multiple bedroom sets with mattresses, bed frames, and dressers
  • Large appliances like a refrigerator, washer, and dryer
  • Living room furniture like sofas, coffee tables, and entertainment centers
  • Dining room set, including a table and chairs
  • Boxes, storage containers, and additional items from various rooms
An isometric illustration of a room filled with boxes and furniture.

pay Bills online

Things to Consider

Evaluate Your Storage Requirements

Before choosing a storage unit, carefully assess your storage needs. Consider the size of the items you plan to store and create a detailed inventory. Categorize your belongings into groups, such as furniture, appliances, boxes, and miscellaneous items.


Consider Accessibility

When determining the storage unit size, factor in accessibility as well. If you anticipate frequent access to your items, consider selecting a slightly larger unit that allows for easy maneuvering within the space.


Anticipate Future Needs

Anticipate any potential changes in your storage requirements in the near future. If you expect to acquire additional items or downsize your belongings, it is advisable to consider those possibilities. Renting a slightly larger unit than your current needs can save you the inconvenience of switching units later.


Anticipate Future Needs

If you still feel unsure about the appropriate unit size, do not hesitate to seek guidance from our friendly staff. They possess the experience and knowledge to assist customers and provide valuable insights based on their expertise.

A man is working on a server in a data center.

Storage Guide

General Guidelines

Choosing the right storage unit size is crucial for efficient and cost-effective storage. By evaluating your storage needs, utilizing online tools, considering standard unit sizes, factoring in accessibility and future requirements, you will be well-prepared to make an informed decision. Remember that these are general guidelines, and the exact capacity may vary depending on the specific dimensions and layout of the storage unit. Always consult with the storage facility manager and consider your specific items to determine the most suitable unit size for your needs.

A man and a woman are carrying boxes in a hallway.

Vehicle Storage

Car Storage

Need a safe place to store that collector, vintage, classic, or spare car? Search thousands of vehicle storage units.


Boat Storage

Looking for a safe and secure space to keep your boat? SpareFoot can connect you with facilities offering boat storage options.


RV Storage

Don’t have the space to keep your RV or camper parked at your home? Find and reserve RV, Trailer, camper, and other large vehicle storage near you.

A green car is parked on the side of the road.