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Storage Unit Calculator — Right Size Guide

Recommended Storage Unit

Unit Size
10x10
Half garage
Capacity
100 sq ft
800 cubic feet
Monthly Cost
$100 - $175
Total Cost (6 months)
$600 - $1,050

Cost Comparison

Monthly (low)$100
Monthly (high)$175
Total 6mo (low)$600
Total 6mo (high)$1,050

Storage Unit Size Reference

SizeSq FtTypically FitsAvg Price/Month
5x525 sq ftSmall closet$50 - $75
5x1050 sq ftWalk-in closet$75 - $125
10x10100 sq ftHalf garage$100 - $175
10x15150 sq ft2/3 garage$125 - $225
10x20200 sq ft1-car garage$150 - $275
10x25250 sq ftLarge garage$175 - $325
10x30300 sq ft2-car garage$200 - $375

Storage Unit Tips

1

Create a detailed inventory list before renting to ensure you get the right size

2

Stack heavier items at the bottom and lighter items on top to maximize space

3

Leave an aisle down the middle for easy access to all your items

4

Consider storage insurance to protect your belongings from damage or theft

5

Use uniform box sizes when possible for easier stacking and organization

6

Climate-controlled units are essential for electronics, wood furniture, and documents

Example Calculations

11-Bedroom Apartment Move

Inputs

Home Size1-bedroom apartment
ItemsFurniture, boxes, mattress
Storage AmountMost of home
Climate ControlNo
Duration3 months

Result

Recommended Unit5x10 (50 sq ft)

Recommended: 5x10 unit (50 sq ft, 400 cu ft). Monthly cost: $75-125. Total 3-month cost: $225-375.

23-Bedroom House with Climate Control

Inputs

Home Size3-bedroom house
ItemsFurniture, boxes, appliances, mattress
Storage AmountEntire home
Climate ControlYes
Duration12 months

Result

Recommended Unit10x20 (200 sq ft)

Recommended: 10x20 unit (200 sq ft, 1,600 cu ft). Monthly cost: $188-413 (with climate control). Total 12-month cost: $2,256-4,956.

3Partial Furniture Storage

Inputs

Home Size2-bedroom apartment
ItemsFurniture only
Storage AmountFew items
Climate ControlNo
Duration6 months

Result

Recommended Unit5x10 (50 sq ft)

Recommended: 5x10 unit (50 sq ft, 400 cu ft). Monthly cost: $75-125. Total 6-month cost: $450-750.

Frequently Asked Questions

Q

What size storage unit do I need for a 2-bedroom apartment?

For a 2-bedroom apartment, you typically need a 10x10 storage unit (100 sq ft) if storing most items, or a 5x10 unit (50 sq ft) if only storing select furniture and boxes. A 10x15 unit (150 sq ft) is recommended if you're storing the entire apartment's contents.

Q

How much does a climate-controlled storage unit cost?

Climate-controlled storage units typically cost 25-50% more than standard units. For example, a 10x10 unit that normally costs $100-175/month would cost $125-225/month with climate control. Climate control is recommended for electronics, wood furniture, documents, and items sensitive to temperature changes.

Q

What can fit in a 5x10 storage unit?

A 5x10 storage unit (50 sq ft) can typically fit the contents of a studio or 1-bedroom apartment, including a sofa, mattress set, dresser, TV, and 10-15 boxes. It's roughly the size of a walk-in closet and can hold about 400 cubic feet of items.

Q

How do I calculate the storage unit size I need?

Calculate storage needs by considering: (1) home size (studio to 5+ bedrooms), (2) what percentage you're storing (few items to entire home), (3) special items like vehicles or appliances, and (4) stacking efficiency. Add one size up if storing large appliances or vehicles. Use our calculator for personalized recommendations.

Q

Is a 10x20 storage unit big enough for a 3-bedroom house?

A 10x20 storage unit (200 sq ft) can comfortably store most of a 3-bedroom house if items are packed efficiently. For an entire 3-bedroom house with all furniture and belongings, you may need a 10x25 or 10x30 unit. The 10x20 unit is equivalent to a 1-car garage and holds approximately 1,600 cubic feet.

Q

What's the average cost to rent a storage unit?

Storage unit costs vary by size: 5x5 units cost $50-75/month, 10x10 units cost $100-175/month, and 10x20 units cost $150-275/month. Climate-controlled units add 25-50% to the cost. Prices also vary by location, with urban areas typically costing more than suburban or rural locations.

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Last Updated: Feb 13, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

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