How to Choose the Right Self Storage Box Size

Why is choosing the right size important?

Choosing the right self storage box size is crucial to optimize your investment. A box that's too small can cause organization problems and damage your belongings, while one that's too large means paying for unnecessary space.

The good news is that at Allstorage you can change sizes anytime - but starting right saves time and money.

Already know what size you need? Check the updated self storage prices in Lisbon and book today.

Step 1: Make an inventory of your belongings

The first step is to list all items you plan to store:

• Large furniture: sofas, beds, tables, wardrobes
• Appliances: refrigerators, washing machines, microwaves
• Boxes and luggage: how many and what size?
• Special items: bicycles, sports equipment, musical instruments

Measure the larger objects - dimensions matter more than weight.

Step 2: Use the volume rule

As a general rule, you can calculate the required space like this:

| What You Have | Recommended Size |

|---------------|------------------|

| Documents and luggage | 1-2 m² |

| Contents of 1 bedroom | 3-4 m² |

| Studio apartment | 4-5 m² |

| 1-2 bedroom apartment | 5-8 m² |

| 3 bedroom apartment | 10-15 m² |

| Complete house | 15-25 m² |

| Moving + extra furniture | 25+ m² |

Step 3: Consider access

If you need frequent access to your box, reserve space for:

• An internal corridor to move around
• Frequently needed items near the entrance
• Shelves for vertical organization

This may mean choosing a box 20-30% larger.

Our most popular sizes

XS Box (1-2 m²) - from €63/month

Perfect for:

• Document archiving
• Travel luggage
• Seasonal sports equipment
• 20-30 small boxes

Small Box (3-4 m²) - from €85/month

Ideal for:

• Complete bedroom furniture
• Bicycles and outdoor equipment
• Small e-commerce stock

Medium Box (5-8 m²) - from €120/month

Our most popular! Accommodates:

• Contents of 1-2 bedroom apartment
• Sofa, bed, appliances
• Medium business stock

Large Box (10-15 m²) - from €180/month

For bigger needs:

• Complete 3-bedroom house
• Commercial equipment
• Multi-room moves

Check the complete price table for more details.

Where to find your box?

Allstorage has 11 units in Lisbon, Almada and Algés. Some of the most popular:

• Lisbon Center: Damasceno Monteiro, Estefânia, Saldanha
• Western Zone: Alcântara, Algés, Benfica
• South Bank: Almada, Almada 2

See also our guide on self storage near Lisbon center.

Common mistakes to avoid

1. Underestimating volume - Items take up more space than they appear
2. Forgetting access - Without an internal corridor, you'll have to remove everything to reach the back
3. Not considering height - Make use of the 2.5-3m height for stacking
4. Thinking only of the present - If you'll accumulate more items, choose larger

Final tip

When in doubt, choose slightly larger. The extra cost is usually offset by ease of organization and access to your belongings. And remember: at Allstorage you can change sizes whenever you want!

Ready to book?

Now that you know the ideal size, book your box online in minutes. Check real-time availability and start using today.

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Next Steps

• 📍 units in Lisbon
• 📏 pricing table
• 📚 how it works
• 📞 Contact us