Spanish Phrase
¿Este casillero está libre?
Meaning
The speaker is asking whether the particular locker they are pointing at is currently unoccupied or available for use. It’s a polite way to check availability before taking a locker.
When to use
Use this question in places that have lockers—schools, gyms, train stations, libraries, or any public venue where you might need to store belongings temporarily.
✦Grammar Breakdown
¿Estecasilleroestálibre?
Demonstrative adjective (Este)
‘Este’ points to a specific noun that is close to the speaker; it agrees in gender and number with the noun (masculine singular here).
Noun (casillero)
‘Casillero’ means ‘locker’ or ‘compartment’; it is a masculine singular noun.
Verb estar (está)
‘Estar’ is used for temporary states or conditions; here it asks about the current availability of the locker.
Adjective (libre)
‘Libre’ means ‘free/available’; it follows the verb ‘estar’ and does not change form.
Interrogative punctuation
Spanish questions are enclosed by opening (¿) and closing (?) marks.
🗨In Conversation
¿Este casillero está libre?
Is this locker free?
Sí, está libre. Puedes usarlo.
Yes, it’s free. You can use it.
✕Common Mistakes
¿Este casillero es libre?
Use ‘está’ (estar) for temporary conditions; ‘es’ (ser) would imply a permanent characteristic, which is incorrect here.
¿Éste casillero está libre?
The accent on ‘éste’ is no longer required by the RAE unless you need to avoid ambiguity; most modern usage drops the accent.
¿Este casillero está vacío?
Do not use ‘vacío’ unless you mean the locker is empty inside, not that it’s available for use.
↔Alternatives
¿Este casillero está disponible?
Is this locker available?
¿Hay espacio libre en este casillero?
Is there free space in this locker?
¿Puedo usar este casillero?
Can I use this locker?
Cultural Tip
In many Spanish‑speaking countries the word ‘casillero’ is used for lockers in schools, gyms, and public transport stations. When you ask about availability, ‘libre’ is the natural adjective; avoid ‘vacío’, which describes an empty interior rather than the status of being free to use. Also, remember that the opening question mark (¿) is mandatory in written Spanish.