La grille de vétusté indique l’usure normale.

French usually uses an article where English often does too, and sometimes where English would omit it.

Here, la grille means the grid / the scale / the table.
In practical French, grille can mean a chart, table, rating scale, or reference grid depending on context.

So la grille de vétusté is a complete noun phrase: the wear-and-tear scale/table.

De vétusté literally means of age-related deterioration / of wear due to age.

In property, insurance, or rental contexts, vétusté is a technical word meaning the loss of value or deterioration that comes from normal aging and use over time.

So une grille de vétusté is not just any grid. It is specifically a chart or scale used to evaluate normal aging/wear.

Because French avoids two vowel sounds in a row at the start of a word group.

La becomes l’ before a noun beginning with a vowel or mute h:

• la table
• l’usure
• l’école
• l’histoire

This is called elision.

So l’usure simply means the wear.

No. They look similar, but they do not mean the same thing in modern usage.

• French usure = wear, deterioration from use
• English usury = charging excessively high interest on loans

So this is a classic false friend to watch out for.

Because the subject is singular: La grille de vétusté.

The main noun is grille, which is singular and feminine.
The phrase de vétusté just adds information; it does not change the number of the subject.

So the verb is singular:

• La grille ... indique
• Les grilles ... indiquent

The structure is very straightforward:

• La grille de vétusté = the subject
• indique = the verb
• l’usure normale = the direct object

So the pattern is:

Subject + verb + object

That is basically the same order as in English: The wear-and-tear scale indicates normal wear.

Because in French, most adjectives come after the noun.

So:

• une usure normale = normal wear
• un usage normal = normal use

Some adjectives often come before the noun, but normal(e) usually comes after.

Also, normale agrees with usure, which is feminine singular:

• usure normale
• usage normal
• conditions normales

All three nouns here are feminine singular:

• la grille
• la vétusté
• l’usure

You can see that with the articles:

• la
• de
  • noun with no article here
• l’ standing for la before a vowel

And the adjective also shows this:

• normale has a final -e because it agrees with feminine usure

Because de + noun is often used in French to create a descriptive relationship, similar to of in English.

So:

• une grille de vétusté
• une table de multiplication
• une salle de bain

In these kinds of fixed noun phrases, French often uses de without an article.

If you said de la vétusté, that would usually mean something more like some wear/aging or refer to the concept in a less fixed way, not the standard label of the expression.

It can often be understood as indicates, shows, or states, depending on context.

In technical or administrative language, indiquer often sounds a bit formal and can mean:

• to indicate
• to show
• to specify

So in a practical context, La grille de vétusté indique l’usure normale could also be understood as:

• The wear-and-tear table shows normal wear
• The depreciation scale indicates what counts as normal wear

Yes. Indique is the present tense of indiquer.

The form here is:

• il/elle indique

Since la grille is singular, French uses the il/elle form.

The present tense is very common in French and can express:

• general truths
• habitual facts
• definitions
• what a document or chart says

So here it works well because the sentence states a general fact about what the chart indicates.

A rough pronunciation guide:

• La grille ≈ la gree-yuh or more smoothly la gree
• de vétusté ≈ duh vay-too-stay
• indique ≈ ahn-deek
• l’usure normale ≈ loo-zur nor-mal

A few useful pronunciation notes:

• grille has a sound that can be tricky for English speakers; in modern French it often sounds close to gree.
• vétusté ends with a clear -té sound: tay
• In l’usure, the final consonant of l’ links smoothly into usure
• normale ends with an audible l sound, unlike many silent final consonants in French

Yes, especially in housing, rental, and insurance contexts.

It refers to a standard table or scale used to assess how much deterioration is considered normal over time.

So even if you can analyze it word by word, learners should also remember it as a set expression: grille de vétusté.

That will help you recognize it quickly in contracts, inventory reports, and property-related documents.