yīguì xūyào chāixiè.

衣柜 means a wardrobe, clothes cabinet, or sometimes a closet unit.

A few notes:

• 衣 = clothes
• 柜 = cabinet / cupboard

So 衣柜 is specifically a piece of furniture or storage unit for clothes.

Depending on context, English could translate it as:

• wardrobe
• closet
• armoire

If this is about moving furniture, wardrobe or clothes cabinet is often the clearest match.

Chinese often allows a noun to appear by itself when the object is already understood from context.

So 衣柜需要拆卸 can naturally mean:

• The wardrobe needs to be disassembled
• Wardrobes need disassembly
  depending on context

If you wanted to be more specific, you could say:

• 这个衣柜需要拆卸。 = This wardrobe needs to be disassembled.
• 一个衣柜需要拆卸。 = A wardrobe needs to be disassembled.

So the bare noun 衣柜 is normal here, especially in instructions, notes, or practical conversation.

Here the pattern is:

noun + 需要 + verb

So:

• 衣柜 = the wardrobe
• 需要 = needs / requires
• 拆卸 = disassembling / to disassemble

A very useful grammar point is that Chinese often says:

X 需要 + verb

to mean:

X needs to be [verb]-ed

Examples:

• 电脑需要维修。 = The computer needs repairing.
• 房间需要打扫。 = The room needs cleaning.
• 衣柜需要拆卸。 = The wardrobe needs disassembling.

So even though English often uses a passive structure, Chinese does not need one here.

Because Chinese often does not use 被 when the meaning is already clear.

In this sentence, 衣柜需要拆卸 already clearly means:

The wardrobe needs to be disassembled.

Using 被 here is possible in theory, but it usually sounds less natural or unnecessarily heavy:

• 衣柜需要被拆卸。

That is grammatical, but most native speakers would prefer:

• 衣柜需要拆卸。

So this is a very common Chinese pattern where English uses to be done, but Chinese simply uses 需要 + verb.

These words are related, but they are not identical.

拆卸

This is the best fit here. It means to disassemble, take apart, or remove components, and it often sounds a bit more formal or technical.

Common contexts:

• furniture
• machines
• equipment
• installation / moving

拆开

This means to take apart or open up something. It often focuses on opening or separating parts, and it is more everyday in tone.

Example:

• 把盒子拆开。 = Open / take apart the box.

拆掉

This often means tear down, remove completely, or dismantle and get rid of.

Example:

• 把这面墙拆掉。 = Tear down this wall.

So for furniture that will be taken apart, especially for moving or reassembly, 拆卸 is a very natural choice.

It is natural, but it sounds a bit more like:

• a notice
• a work instruction
• moving / delivery language
• customer service or installation language

In everyday speech, people might also say:

• 衣柜要拆。
• 衣柜得拆。
• 这个衣柜要先拆一下。

These are a bit more conversational.

So:

• 需要 = slightly more formal / neutral
• 要 / 得 = more conversational

But 衣柜需要拆卸。 is absolutely normal Chinese.

Yes, it is a complete sentence.

Chinese often leaves out the doer of the action when the doer is unknown, obvious, or unimportant.

This sentence focuses on what needs to happen to the wardrobe, not on who will do it.

If you want to add the person or company doing the action, you can:

• 师傅需要拆卸衣柜。 = The worker needs to disassemble the wardrobe.
• 搬家公司会拆卸衣柜。 = The moving company will disassemble the wardrobe.

But without that information, 衣柜需要拆卸。 is still complete and natural.

Because this sentence is simply stating a need or requirement, not a completed action or a new change of state.

So the plain version is the most neutral:

• 衣柜需要拆卸。

If you add 了, the feeling changes:

• 衣柜需要拆卸了。

This can suggest something like:

• Now the wardrobe needs to be disassembled
• It has come to the point where the wardrobe needs disassembling

So the version without 了 is better for a straightforward statement.

Yes. The easiest way is to add 吗:

• 衣柜需要拆卸吗？ = Does the wardrobe need to be disassembled?

You could also ask more casually:

• 衣柜要拆吗？
• 这个衣柜需要拆吗？

These are all natural, with slightly different levels of formality.

Yes. 需要 can take either a noun or a verb phrase.

With a noun:

• 我需要帮助。 = I need help.
• 我们需要时间。 = We need time.

With a verb phrase:

• 衣柜需要拆卸。 = The wardrobe needs disassembling.
• 房子需要装修。 = The house needs renovating.

So in your sentence, 拆卸 is the action that is needed.