Storage Unit Size Guide

Not sure what size storage unit you need? Use this guide as a starting point to compare common storage unit sizes at Castroville Self Storage. We offer convenient ground-floor storage units from compact 5x5 units up to large 12x30 units, including indoor units, drive-up units, and select larger spaces suitable for interior vehicle storage. All storage needs are different, and the right unit size depends on what you are storing and how you organize your items. Our team would be happy to help you choose the right size.

How to Choose a Storage Unit Size

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Step 1: Make a List of What You Plan to Store

Start by making a quick list of the items you want to store. Include boxes, furniture, appliances, business items, seasonal items, tools, and anything oversized or awkwardly shaped.

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Step 2: Separate Boxed Items from Large Items

Think about which items will fit into boxes and which items will need their own floor space. Larger items such as mattresses, sofas, tables, appliances, shelving, equipment, and bicycles can affect the unit size you need.

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Step 3: Estimate the Number of Boxes and Furniture Pieces

Estimate how many small, medium, and large boxes you will have. Then list the larger furniture or household items you plan to store. This will help you compare your belongings to the storage unit examples below.

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Step 4: Compare Sizes or Ask Us for Help

Use the Size Guide Breakdown below to compare common storage unit sizes. If you are not sure which size is best, contact our office. Tell us what you plan to store, and we would be happy to help you choose a unit.

Size Guide Breakdown

5x5 Storage Units

A 5x5 storage unit is similar to a small walk-in closet. It can be a good fit for boxes,

seasonal items, small furniture, business records, decorations, sports gear, or extra

household items.


Good for:

• Boxes and bins

• Seasonal storage

• Small furniture

• Business files or supplies

• Dorm room items

5x10 Storage Units

A 5x10 storage unit is about the size of a large walk-in closet or small bedroom. It can

work well for the contents of a small room, extra furniture, boxes, bikes, or moving

overflow.

Good for:

• Mattress set

• Small sofa or chairs

• Dresser or nightstands

• Boxes and household items

• Small apartment or dorm storage

5x15 and 8x10 Storage Units

These sizes provide more room than a standard 5x10 and can be useful for customers

storing furniture, boxes, garage items, or the contents of a small apartment.

Good for:

• Small apartment storage

• Bedroom furniture

• Garage overflow

• Business inventory

• Moving or remodeling storage

10x10 and 8x15 Storage Units

A 10x10 or 8x15 storage unit can work well for the contents of a one-bedroom

apartment, garage items, or a mix of furniture and boxes.

Good for:

• One-bedroom apartment contents

• Larger furniture pieces

• Boxes, bins, and shelving

• Garage or home overflow

• Business storage

10x15 Storage Units

A 10x15 storage unit offers additional space for customers storing larger household

items, apartment contents, furniture, appliances, or business inventory.

Good for:

• Larger apartment storage

• Furniture and appliances

• Moving or remodeling projects

• Business inventory

• Household overflow

10x20 and 10x25 Storage Units

These larger storage units can be a good fit for multi-room household storage, business

inventory, equipment, contractor supplies, or select interior vehicle storage.

Good for:

• Multi-room household storage

• Larger furniture sets

• Business or contractor storage

• Equipment and inventory

• Select interior vehicle storage

Please contact our office before storing a vehicle so we can confirm unit size,

availability, and vehicle storage requirements.

10x30, 12x25, and 12x30 Storage Units

Our largest storage units are designed for customers who need substantial storage

space. These units may be suitable for larger household moves, business inventory,

equipment, contractor storage, or interior vehicle storage.

Good for:

• Large household storage

• Business inventory

• Contractor equipment and supplies

• Large furniture and appliances

• Select interior vehicle storage

Please contact our office for help confirming whether one of these larger units is the

right fit for your storage needs.

Need Help Choosing?

Storage size can be hard to estimate from a list. If you are unsure, please call or visit our staffed office. We would be happy to help you compare sizes and choose a storage unit that fits your needs. You can also view available units and rent online