How to Remove Grease From Composite Decking

M. John
How to

Stains on your Ultra Decking board can make your decking look less attractive. Grease stains can be very difficult to clean compared to cleaning dirt on the decking. When there is a grease stain on your composite decking, you should immediately remove the stain on the decking. If you don’t know how to remove grease stains from composite decking, this article is for you.

Why You Should Clean Grease on Composite Decking

Grease stains on composite decking can be very difficult to clean if neglected—one reason why you shouldn’t leave oil stains on your decking. Leaving oil or grease stains on your decking for a long time can be very tough to remove.

Grease stains can remain permanent if you fail to clean them early. You won’t want to have a permanent stain that will make your decking look less appealing. But cleaning it as soon as possible will permanently prevent the oil from staining your deck.

How to Remove Grease from Composite Deckings

brown composite decking

Make use of hot soapy water and a soft-bristle brush to remove grease stains. You can also use baking soda and vinegar to remove the stains. If you follow the procedures below, you should easily remove grease stains.

Use Hot Soapy Water

If your decking is stained with grease or oil from food, you can remove the grease by scrubbing the affected area with a soft bristle brush.

Step 1

First, get some paper towels and use them to wipe some of the greases from the decking surface.

Step 2

Secondly, after wiping some of the greases with a paper towel, it’s time to wash the decking with hot soapy water. Get an ammonia-free liquid dishwasher and mix it with hot water. Mix one tablespoon of the liquid dishwasher with 5 litres of hot water. Pour some of the mixtures onto the affected area with the grease stain.

 Step 3

Then, with a soft bristle brush, scrub the grease away. Ensure you scrub the greasy area well to remove the stains from the composite decking.

Step 4 

Lastly, rinse the composite decking with water.

Using Hot Water With Undiluted Dishwasher

You can also remove grease stains with hot water and a concentrated dishwasher. It is advisable to use an ammonia-free dishwasher for composite decking.

Step 1

First, get a bucket of hot water and pour it on the grease stain.

Step 2

Then add some undiluted ammonia-free dishwasher to the stain and scrub it with a soft bristle brush. The dishwasher will break down the structure of the oil for easy removal. For stubborn grease stains, place the dishwasher on the stain and let it stay for a while. Then use the brush to scrub the stains away. Keep scrubbing until the stain is removed.

Step 3

Finally, use water to rinse the decking to remove any traces of soap.

Vinegar and Baking Soda

You can also remove grease stains with vinegar and baking soda. Baking soda works well for oil stains by absorbing the oil on the deck’s surface. A mixture of vinegar and baking soda will act as an agent to remove the grease. You can add either apple cider or white vinegar to the baking soda.

Step 1

Sprinkle some baking soda directly onto the grease stain. Allow the baking soda to stay on the affected area for a few minutes to absorb some of the oil.

Step 2

Get your vinegar and pour it onto the baking soda. The vinegar will create a foam with the baking soda. Then use a soft bristle brush to scrub the affected area to remove the stains from the composite decking.


You can remove grease from composite decking by scrubbing the deck with hot soapy water or a mixture of white vinegar and baking soda.


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