Ruang simpanan ini besar.

In Malay, demonstratives like ini (this) and itu (that) usually come after the noun:

• rumah ini = this house
• kereta itu = that car
• ruang simpanan ini = this storage space / this storage room

So ruang simpanan ini is the normal word order.

Malay often leaves out the verb to be in simple sentences like this.

So:

• Ruang simpanan ini besar. = This storage room is big.

There is no need to add a word for is here. This is very common in Malay when linking a subject with an adjective or noun.

Literally:

• ruang = space / room
• simpanan = storage / something kept / stored items

So ruang simpanan means something like storage space, storage room, or storeroom, depending on context.

Malay often combines nouns this way.

Here, besar is the predicate adjective, meaning it describes the subject:

• Ruang simpanan ini = this storage room
• besar = big

So the sentence structure is:

• [subject] + [adjective]

This is very normal in Malay:

• Rumah itu besar. = That house is big.
• Bilik ini kecil. = This room is small.

You usually would not say that in natural Malay.

For simple adjective sentences, Malay normally does not use adalah:

• natural: Ruang simpanan ini besar.
• unnatural or overly formal here: Ruang simpanan ini adalah besar.

Adalah is more commonly used in formal definitions or before certain noun phrases, not usually before plain adjectives in everyday speech.

No. In this sentence, simpanan is acting like a noun.

It comes from the root simpan, which means to keep or to store.
With -an, it becomes something like storage, stored things, or a place/thing related to storing, depending on context.

So ruang simpanan is a noun phrase, not a verb phrase.

Yes. A learner may also come across ruang penyimpanan, which also means storage space or storage room.

Very roughly:

• ruang simpanan
• ruang penyimpanan

Both can be understood, though usage can vary by region and context. Penyimpanan can sound a bit more formal or technical because it is built from penyimpanan = storage as a process or function.

Mostly, besar means big / large, especially for physical size, as in this sentence.

Examples:

• rumah besar = big house
• bilik besar = big room

But besar can also be used more broadly, depending on context, such as important, major, or grown-up in other expressions. In Ruang simpanan ini besar, it clearly means physical size.

You can, but it will sound unnatural in English.

Word-for-word:

• ruang = space/room
• simpanan = storage
• ini = this
• besar = big

So the order is something like:

• storage space this big

But natural English rearranges it as:

• This storage room is big.
• This storage space is big.

That is a good reminder that Malay and English organize sentences differently.

It is similar, but not always exactly the same.

• ruang = space / area
• bilik = room

So:

• ruang simpanan suggests storage space/area
• bilik simpanan suggests an actual storage room

In many situations, the difference may be small, but bilik sounds more like a clearly defined room with walls.

Yes. Malay does not use articles the same way English does.

There is no direct equivalent of a/an/the in this sentence. Malay relies on context and words like ini and itu to make things definite:

• ruang simpanan = a storage room / storage room / the storage room depending on context
• ruang simpanan ini = this storage room

So ini already helps make the reference specific.