Я как раз собираюсь выйти из дома.

Here как раз means something like just, right now, or exactly at this moment.

So Я как раз собираюсь выйти из дома gives the idea:

• I’m just about to leave
• I’m actually getting ready to leave right now

It adds a sense of timing. Without как раз, the sentence would still mean I’m going to leave / I’m planning to leave, but как раз makes it feel more immediate.

Собираться + infinitive is a very common Russian way to say to be going to do something, to intend to do something, or to be about to do something.

So:

• собираюсь выйти = I’m going to leave / I’m about to leave

In this sentence, it does not literally mean I am collecting myself or I am gathering. It is an idiomatic future-intention construction.

Compare:

• Я собираюсь поехать в Москву = I’m going to go to Moscow
• Мы собираемся ужинать = We’re about to have dinner

The dictionary form is собираться, which is a reflexive verb. In this expression, you simply have to learn it as a set pattern:

• собираться + infinitive = to intend / be about to do

So the first-person singular form is:

• я собираюсь

Even though -ся originally has reflexive origins, in this phrase you usually just treat собираться as the normal verb required for this meaning.

This is a very common question, because all of these can relate to leaving, but they are not the same.

• идти = to go / to be walking
• уйти = to leave, go away
• выйти = to go out, exit

Here the sentence specifically says:

• выйти из дома = to go out of the house / to leave the house

That is why выйти fits best: it emphasizes moving out from inside the house.

Compare:

• Я собираюсь выйти из дома = I’m about to go out of the house
• Я собираюсь уйти = I’m about to leave (more general; not necessarily from a house)
• Я иду домой = I’m going home
• Я иду из дома is not natural for this meaning

Из means out of / from inside.

Because the idea is leaving from inside the house, Russian uses:

• выйти из дома = to go out of the house

This is different from other prepositions:

• из = from inside something
• с = from off a surface / from an event / from a place in some contexts
• от = away from a person or from near something

So:

• из дома = from inside the house
• от дома would mean away from the house / from near the house, which is a different idea
• с дома is nonstandard in standard Russian for this meaning

Because after из, Russian uses the genitive case.

The noun дом becomes:

• nominative: дом
• genitive: дома

So:

• из дома = out of the house

This is a basic and very important pattern:

• из школы = out of the school
• из комнаты = out of the room
• из магазина = out of the store

After собираться in this meaning, Russian normally uses an infinitive:

• собираюсь выйти
• собираюсь позвонить
• собираюсь поесть

This works much like English I’m going to leave, where leave stays in the base form.

So the pattern is:

• [person/form of собираться] + infinitive

Russian often uses the perfective infinitive after собираться when talking about a planned single completed action.

• выйти = perfective, a single action of going out
• выходить = imperfective, process / repeated action / general action

Here the speaker means one concrete action:

• I’m about to go out / leave now

So выйти is the natural choice.

If you used выходить, it would usually sound less natural here unless you were emphasizing a process, habit, or some special context.

It usually suggests the near future, often very soon.

Because of как раз, the sentence often feels like:

• I’m just about to leave
• I’m literally on my way out

Without как раз, Я собираюсь выйти из дома could be a little broader and might simply mean I’m planning to leave the house.

So yes: in this version, the sentence strongly suggests immediacy.

Yes.

• Я собираюсь выйти из дома = I’m going to leave the house / I’m about to leave the house
• Я как раз собираюсь выйти из дома = I’m just about to leave the house

So как раз is optional, but it adds the idea of right at this moment.

Yes, Russian word order is flexible, but different orders change the emphasis.

Neutral order:

• Я как раз собираюсь выйти из дома.

Other possible orders:

• Я собираюсь как раз выйти из дома.
• Как раз я собираюсь выйти из дома.
• Из дома я как раз собираюсь выйти.

These may sound more marked or emphasize different parts of the sentence.

For a learner, the original sentence is a very natural and safe choice.

Not always. Russian often drops subject pronouns when the verb already shows the person.

Since собираюсь already means I am about to, you could say:

• Как раз собираюсь выйти из дома.

That can sound very natural in conversation.

But including я is also completely correct, especially if:

• you want to be clear
• you are contrasting yourself with someone else
• the sentence stands alone

So both are possible.

Usually дом here can mean either house or home, depending on context.

In English, the most natural translation is often:

• I’m just about to leave home
• I’m just about to leave the house

If the focus is the building itself, house works well.
If the focus is simply the place where the speaker lives, home may sound more natural in English.

Russian дом covers both ideas in many everyday situations.