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10x15 vs 10x20 Storage Unit: Which Size?

The 10x15 holds a two to three bedroom home; the 10x20 holds a whole house or a vehicle. Enter your inventory to size it right.

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Fit summaryFIG. VOLUME

The 10x15-to-10x20 call usually comes down to a garage or a car. Enter your real inventory so the size matches what you actually store.

20 ft8 ft10 ft deep

10x15 = 150 sq ft, 10x20 = 200 sq ft

The space10x15: ~150 sq ft, ~1,200 cu ft. 10x20: ~200 sq ft, ~1,600 cu ft
What decides itVehicle storage and garage load vs. 150 sq ft (10x15) or 200 sq ft (10x20), both 8 ft tall
What to measureMeasure all furniture, appliances, vehicle, and box count

Real openings run about 1 to 2 inches under the labeled size, and a single inch can flip the result. Check your own measurements before you buy or move.

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“Checked if the IKEA haul would fit before driving 45 minutes. Half of it wouldn't have.” — IKEA trip planner

Measure smart

What to measure.

Four numbers decide nearly every fit check. Get these right and the rest follows.

  1. 01Whether you need to store a vehicle, which requires the 20 ft depth
  2. 02Total footprint of all furniture and appliances against 150 vs 200 sq ft
  3. 03Longest item against the 15 ft or 20 ft depth
  4. 04Whether you want an aisle, which the 10x20 keeps more easily

Don't make these

Common mistakes.

Most “it didn't fit” stories trace back to one of these oversights.

  1. ⚠Picking the 10x15 for a three-bedroom that also has a full garage to store
  2. ⚠Trying to park a car in a 10x15, which is too short for most vehicles
  3. ⚠Packing either unit with no aisle and losing access to the back
  4. ⚠Filling the floor and ignoring the 8 ft height in both sizes

Frequently asked

Questions we keep getting.

  • Should I get a 10x15 or 10x20 storage unit?

    Choose a 10x15 (150 sq ft) for a two to three bedroom home with an aisle. Choose a 10x20 (200 sq ft) for a three to four bedroom home, a home plus a garage, or to park a vehicle with furniture around it.

    01
  • Can I park a car in a 10x15 storage unit?

    Usually not. Most cars are 15 to 16 ft long, which leaves no working room in a 15 ft unit. A 10x20 is the size that fits a vehicle plus some boxes.

    02
  • What is the difference between a 10x15 and a 10x20?

    A 10x15 is 150 sq ft and a 10x20 is 200 sq ft, both 10 ft wide and 8 ft tall. The 10x20 adds 5 ft of depth, roughly 400 cu ft, which is the garage load or the room for a vehicle.

    03

More like this

Related fit checks.

What Fits in a 10x15 Storage Unit?A 10x15 storage unit is 150 sq ft with an 8 ft ceiling (about 1,200 cu ft). It holds a 2 to 3 bedroom home. See what fits and check your own list with the calculator.What Fits in a 10x20 Storage Unit?A 10x20 storage unit is 200 sq ft (about 1,600 cu ft), the size of a one-car garage. It holds a three to four bedroom home or a vehicle. Check your full inventory.10x10 vs 10x15 Storage Unit: Which Size?A 10x10 is 100 sq ft (a one-bedroom); a 10x15 is 150 sq ft (a two to three bedroom home). Compare what each holds and check your inventory with the calculator.What Fits in a 10x30 Storage Unit?A 10x30 storage unit is 300 sq ft (about 2,400 cu ft), the size of a two-car garage. It holds a four to five bedroom home or a vehicle plus furniture. Check your inventory.5x10 vs 10x10 Storage Unit: Which Size?A 5x10 is 50 sq ft (studio or 1-bedroom overflow); a 10x10 is 100 sq ft (a full one-bedroom). Compare what each holds and check your inventory with the calculator.

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