Mantolama için metraj hazırlandı.

In this sentence, mantolama usually means insulation work, especially exterior wall insulation in construction.

It comes from manto, which literally means coat, so the idea is something like putting a coat on a building. In everyday construction Turkish, mantolama is a very common word for thermal insulation applied to the outside of a building.

So here mantolama için means for the insulation work or for the cladding/insulation project depending on context.

için means for.

So:

• mantolama için = for insulation
• more literally = for the purpose of insulation

It links the noun before it to a purpose or intended use.

Examples:

• Çocuklar için = for children
• Proje için = for the project
• Mantolama için metraj = measurement/quantity takeoff for insulation

Metraj is a technical construction word. It refers to the measurement of quantities, often for planning, costing, or preparing work.

Depending on context, it can mean things like:

• quantity takeoff
• measurement calculation
• work quantity estimate

So mantolama için metraj means something like:

• the quantity takeoff for insulation
• the measurements for the insulation job
• the measurement estimate needed for insulation

This is not a very everyday word outside fields like construction, architecture, or contracting.

Because hazırlandı is a different verb form from hazırladı.

• hazırladı = he/she/it prepared or someone prepared
• hazırlandı = was prepared or got prepared

Here, hazırlanmak is the passive/reflexive form of hazırlamak.

So:

• Metraj hazırlandı. = The quantity takeoff was prepared.
• Metrajı Ahmet hazırladı. = Ahmet prepared the quantity takeoff.

In your sentence, the focus is on the result, not on who did it.

Hazırlandı can be broken down like this:

• hazırla- = verb stem from hazırlamak (to prepare)
• -n- = passive/reflexive marker
• -dı = past tense (did / was)

So:

• hazırlamak = to prepare
• hazırlanmak = to be prepared
• hazırlandı = was prepared

This -n- is very common in Turkish passives:

• açmak = to open → açılmak = to be opened
• kurmak = to set up → kurulmak = to be set up
• hazırlamak = to prepare → hazırlanmak = to be prepared

Yes, it is effectively passive.

Mantolama için metraj hazırlandı. means:

• The quantity takeoff for the insulation was prepared.

The sentence does not say who prepared it. That is typical of the passive in Turkish when the action matters more than the doer.

If you wanted an active version, you could say:

• Biri mantolama için metraj hazırladı. = Someone prepared a quantity takeoff for the insulation.
• Mühendis mantolama için metraj hazırladı. = The engineer prepared a quantity takeoff for the insulation.

Turkish word order is flexible, but the most neutral order is often subject/object + verb at the end.

Here:

• Mantolama için = for insulation
• metraj = quantity takeoff / measurement
• hazırlandı = was prepared

So the sentence literally follows a pattern like:

• For insulation, the quantity takeoff was prepared.

Turkish normally keeps the verb at the end, so hazırlandı comes last.

You could move parts around for emphasis, but the original sounds natural and neutral in a technical context.

Turkish does not have articles like the or a/an.

So metraj can mean:

• a quantity takeoff
• the quantity takeoff

Which one is meant depends on context.

In a sentence like this, English usually prefers the:

• The quantity takeoff for the insulation was prepared.

But Turkish simply says metraj hazırlandı without needing an article.

Because metraj is the subject of the passive-style sentence, not a definite direct object.

Compare:

• Metraj hazırlandı. = The quantity takeoff was prepared.
• Metrajı hazırladı. = He/she prepared the quantity takeoff.

In the second sentence, metrajı has the accusative ending -ı because it is a definite direct object.

In your sentence, metraj is what was prepared, so in English it feels like the subject of was prepared.

Not exactly.

Hazırlandı means was prepared, not simply is ready.

Compare:

• Metraj hazır. = The quantity takeoff is ready.
• Metraj hazırlandı. = The quantity takeoff was prepared.

So hazırlandı focuses on the action of preparation having been completed.

In real context, the result may imply readiness, but grammatically it means was prepared, not just is ready.

Yes. It is a noun phrase meaning something like the quantity takeoff for insulation.

The core noun is metraj.

Everything before it modifies it:

• mantolama için = for insulation
• mantolama için metraj = measurement/quantity takeoff for insulation

This kind of structure is very common in Turkish:

• proje için rapor = report for the project
• ihale için belge = document for the tender
• tamir için malzeme = materials for repair

Yes. Depending on the industry and style, you might also hear:

• Mantolama için ölçüm hazırlandı.
• Mantolama için metraj çalışması yapıldı.
• Mantolama metrajı hazırlandı.

These are slightly different in nuance:

• ölçüm = measurement
• metraj çalışması = quantity takeoff work/study
• mantolama metrajı = the insulation quantity takeoff

Your original sentence sounds natural, especially in a technical or construction setting.

A rough pronunciation is:

man-toh-LAH-ma ee-CHEEN met-RAZH ha-zuhr-LAHN-duh

A few notes:

• ı in hazırlandı is not an English i sound. It is a more central vowel, somewhat like a reduced vowel.
• j-like sound appears at the end of metraj, like the s in measure.
• Stress is often heard strongly on:
  • mantolama → -LA-
  • için → usually i-ÇİN
  • metraj → often -traj
  • hazırlandı → often near the end, -lan- or -dı depending on rhythm

A natural smooth pronunciation matters more than perfect stress at first.