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Self Storage Unit Size Selection. What do I Need? - Storage Inn Halifax

April 10, 2025

What Size Storage Unit Do I Actually Need? A Simple Guide

So, you’ve decided a self-storage unit is the perfect solution for decluttering, moving, or storing those seasonal items. That’s great! But then you look at the options: 5×5, 10×10, 10×20… suddenly, it feels a bit like choosing a mystery box. Picking the right size is crucial – too small, and you’re stuck; too large, and you’re paying for space you don’t need.

Don’t worry! Choosing the right storage unit size is easier than you think. This simple guide will break down the common sizes and help you estimate what you’ll actually need.

Quick Tips Before You Choose:

  • Make a List: Write down everything you plan to store, especially the large items (sofas, beds, appliances, large boxes).
  • Think Vertically: Most storage units have high ceilings (often 8 feet or more). Plan to stack sturdy boxes and use shelving (if allowed) to maximize vertical space.

  • Consider Access: Will you need to get things in and out regularly? If so, leave yourself an aisle or pathway. This means you might need a slightly larger unit than if you were just packing it full for long-term storage.
  • Measure Big Items: Knowing the dimensions of your largest pieces (couches, mattresses, tables) helps visualize how they’ll fit.
  • Visualize or Mock-Up: Try grouping your items together (if possible) or use masking tape on your floor to mark out unit dimensions and see how things might fit.
  • Use Online Tools: Many storage facility websites have handy size estimators or visual guides – check those out!
  • When in Doubt: If you’re truly torn between two sizes, it’s often less stressful to go slightly larger. Trying to cram items into a too-small space is frustrating and can risk damage.

Common Storage Unit Sizes Explained:

Here’s a breakdown of typical unit sizes and what generally fits inside:

  • 5′ x 5′ Unit (25 sq. ft.)

    • Like: A small walk-in closet.
    • Good for: A few boxes, small furniture items (end table, lamp, small bookshelf), seasonal clothing or decorations, files, sports equipment (skis, golf clubs). Ideal for overflow closet items or dorm room contents over summer break.

  • 5′ x 10′ Unit (50 sq. ft.)

    • Like: A large walk-in closet.
    • Good for: Contents of a small studio apartment or dorm room (excluding major appliances). Can typically fit a queen-size mattress set, a dresser, a sofa (potentially stood on end), several boxes, and maybe a bicycle.

  • 10′ x 10′ Unit (100 sq. ft.)

    • Like: Roughly half of a standard one-car garage, or a small bedroom.
    • Good for: Furnishings from a one-bedroom apartment, including some major appliances (washer/dryer), furniture, plus boxes. A popular choice for those needing a bit more space or storing during a small renovation. Also good for patio furniture or business files.

  • 10′ x 15′ Unit (150 sq. ft.)

    • Like: A large bedroom or slightly smaller than a standard one-car garage.
    • Good for: Contents of a typical two-bedroom apartment or small house. Can hold furniture, major appliances, many boxes, bicycles, or even items like a piano or larger couches.

  • 10′ x 20′ Unit (200 sq. ft.)

    • Like: A standard single-car garage.
    • Good for: Furnishings from a two or three-bedroom house, including major appliances, large furniture (living room sets, dining sets), numerous boxes, and potentially some outdoor equipment like kayaks or lawnmowers. Some facilities may allow vehicle storage in this size (always check first!). 

  • 10′ x 30′ Unit (300 sq. ft.)

    • Like: A long single-car garage or a 1.5-car garage.
    • Good for: Contents of a four or five-bedroom house. Can accommodate large furniture sets, major appliances, garage contents, numerous boxes, and often a car, small boat, or commercial inventory.

Beyond Square Footage:

Remember to consider the ceiling height for stacking potential. Also, while climate control doesn’t change the unit size, needing it might influence how you pack items (e.g., not stacking sensitive items too high).

Ready to Choose?

By taking stock of your items and using these comparisons, you should have a much better idea of the storage unit size that fits your needs and budget. Don’t hesitate to talk to the staff at your local storage facility (like here in the Brookside area!) – they see people estimating space every day and can offer valuable advice based on your specific items.

Now you’re equipped to confidently select the perfect space!