Just want to ask if what are the documents needed...

expat of any nationality may marry in the UAE, irrespective of their religion, nationality, or origin by completing the marriage ceremony in accordance with their religious beliefs. Muslim expatriates can perform the marriage ceremony in the Courts Department, or by requesting a legal authorized home. The marriage application with all necessary documents is submitted to the Courts Department in Ras Al Khaimah. The marriage certificate is issued within a few days of the date of the contract, and non-Muslims can be married in the church (if they are Christians) or in their embassy or consulate in the UAE or their residence.
If a Christian marriage is completed in the church in Ras Al Khaimah, a marriage certificate must be obtained from the Courts Department. It is also advised that the marriage be registered at the respective consulates. Regardless of where the marriage ceremony takes place, whether in court, church or otherwise, married couples are required to register the marriage in the court and embassy of their respective countries.

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The procedures of expatriates' marriage in the UAE are conducted in two ways, the first is marriage through Islamic Sharia court as follow:

Apply fora marriage at Sharia court and attach the following attachments:

The original copy of applicant's passports (Man and woman)

The copies of the valid residences

A certificate of proving the social status approved from the consulates of both bride and groom's countries and a

Authenticated medical test that shows the good health of both of them.

A certificate, which shows the status of both bride and groom, as it has to be authorized from the consulate or the ministry of foreign affairs

The presence of the bride's father r any relative (by making a power of attorney for a Muslim person) in the UAE.

A letter issued by the countries' of both of them as of non-objection

Two Muslim witnesses

The second is the marriage of Non-Muslim expatriates:  

This is done through the embassy of your country

Or through a church or a chapel

Valid passports

UAE residence

Social status cards

Non-objection letter

Medical tests

A letter of NOC from the employer