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Ronseal Decking Oil

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Ronseal Decking Oil is a durable, waterproof treatment that protects against weathering, warping, swelling, drying and splitting.

Resists mould and algae growth whilst sheidling against the greying effects of UV rays. "Natural" offers a clear, wet look, whilst "Cedar", "Oak" and "Pine" dry to a translucent coloured finish.

If your decking is untreated, or could do with some TLC apply a Decking Preserver beforehand for maximum protection. Current offer of 5L includes the best price for deal of 4L + 25% free.

  • Prices
  • Overview


Ronseal Decking Oil Natural is a deep penetrating formula that feeds your decking, restoring the natural oils lost over time through weathering. Suitable for hardwood and soft wood decking, It penetrates the wood leaving a natural looking finish that both protects and nourishes.

Note: The 'Natural' version of this product has a slight tint to provide UV protection to the timber.


Decking areas should be thoroughly cleaned to remove dust, dirt, algae, mildew and other contaminates from the surface prior to oiling. For the best results, clean with an appropriate Decking Cleaner allowing the decking to dry thoroughly before applying the oil.

Ronseal Decking Oil can be used over previous decking oils, however other types of decking stains and treatments that act as a sealant or varnish will need to be removed before application.

New or freshly stripped / cleaned decking can be treated with a Decking Preserver prior to applying the decking oil. This helps to protect the timber of the decking from fungi, dry rot & mould.

Ronseal recommend that new decking made from dense exotic hardwoods should be left to weather for a period of 6 months before applying decking oil. This allows the tight grain of these woods to 'open up', allowing the decking oil to be more easily absorbed by the timber. Note: This process is not necessary for softwood decking.


Do not apply Ronseal Decking Oil in wet conditions or if rain, frost or snow is likely before the product is dry.

  • Decking areas should be completely dry before application
  • Decking oil must be thoroughly stirred before and during application
  • Apply oil to the decking with a good quality roller or bristle brush
  • Apply a second coat in the same way as the first.
  • Allow 6 hours between coats

Two coats of Ronseal Decking Oil are usually sufficient but this may vary depending on the type of decking timber and its absorbency.

Note: this product is not compatible with Ronseal Perfect Finish Decking Oil


To keep your decking performing its very best brush off leaves, dirt and debris on a weekly basis. If signs of mould appear use an appropriate decking cleaner. The condition of the decking should be inspected on a 6 monthly basis and can be re-coated as required.

Equipment Cleaning

Brushes should be cleaned immediately after use with White Spirit. Remove as much of the decking oil from brushes and other application equipment before cleaning. Any remaining decking oil should be stored or disposed of properly at a local authority site. Do not empty into drains or watercourses.


Wear suitable gloves and clothing when using this product

Ronseal Decking Oil is Harmful to aquatic organisms, may cause long term adverse effects in the aquatic environment.

  • Keep product out of reach of children
  • Flammable - Keep away from sources of ignition
  • Repeated exposure may cause skin dryness or cracking
  • May produce an allergic reaction
  • Avoid contact with skin and eyes
  • Use in well ventilated areas only

After contact with skin, wash immediately with plenty of water. If swallowed, seek medical advice immediately and show the tin. If product comes into contact with eyes, rinse immediately with plenty of water and seek medical advice.

Drying Time

  • Rainproof in 2 hours
  • 6 hours between coats

Decking will be ready for general use after 24 hours. Drying times can vary depending on temperature, humidity and porosity of the timber.

  • Reviews

Ronseal Decking Oil reviews - Rating: 4.9 out of 5 stars, based on 306 reviews.

Filter:   All reviews (306)   5 stars (283)   4 stars (21)   3 stars (2)  

Mike Parrington
 Natural Pine
Really good
Put first coat on new fence and gate so easy to apply and as it said on tin the wood went very slightly darker, a week later i applied a second coat to the pine fence and gate. Later that week we had heavy rain and the water just ran off the wood as if i had put a plastic sheet over the fence and gate. Recommend it to anyone.
Anne Pacewicz
dont look at any other product..this is what you need to give your decking that "new"look again.Highly recommend
Susan Dakin
Great! Easy to open container and easy to apply
Reluctant to do the "does what it says on the tin" but to be honest that does sum it up. Really brings out the natural loveliness of the wood, it's easy to apply and ok to do a second coat after six hours so can finish the job in a day
Audrey Edwards
 Natural Cedar
Excellent product. This was a re order so very happy with it,
Excellent product. This was a re order so very happy with it,
Graham McArthur
 Natural Pine
Very good and easy to apply
I put this on to new decking and the wood grain was highlighted to great effect. It's not slippery with a matt finish and water does not soak into the wood.
C Miles
L like it a lot my decking looks great it was the first time I used and will definitely use again
Very happy with my decking it is the first time I used decking oil and I will always use it from now on I would give it a 10 out 10 . I just love it .
Glenn Price
 Natural Oak
"Does what it says on the tin !"
This oil restored my 13 year old decking to a luvly shade of oak. It was pressure washed before applying and let dry for 2 weeks. I would use this oil again..no question.
This is my second purchase of this decking oil very pleased with finish and protection of my decking last year so had no hesitation in buying some more this year.
Douglas Frame
 Natural Cedar
Really good - 4th time of using
This must be the best finish I have ever had when trying to maintain my decking, can't recommend this enough. Looks kinda runny when you pour it out but it goes surprisingly far, I have used this with a brush and applicator. Have taken to using this on my sheds as well ! Great stuff. 10/10
John Butter
 Natural Oak
It works
An amazing product that revived my very tired decking. From thoughts of replacement I now think I have new decking all thanks to this product.
Brian Wong
Seals timber really well rain just runs off it
Very easy to apply spreads well and certainly enhances the look of timber
Ian Cox
 Natural Cedar
Its easy to use
Wonderful lustre the more coats the greater the colour loved the ease in use
Belinda Gottlieb
Exact coverage, good colour, went on easily.
Exact coverage as product stated, good colour, and went on really easily.
Harry Hull
Best value / best finish decking protection
Having used this make and several others over the years, I can recommend this one as the best out there at a sensible cost. Great results every time means my decking at 10 years old looks superb, not new but nourished and ready for another season.
David Eastman
 Natural Oak
The best you can get.
I have used Ronseal decking oil for the past eight years. We have quite a big veranda on the front of our holiday home, and every two years I give the fences one coat and the decking two coats, and every time it comes back like new.
Very good
Easy to apply and leaves the decking looking as good as new.
Kelvin Stacey
Top quality product. Easy to apply and it leaves an excellent finish.
J Seward
Best decking oil ever
Use this every year, keeps my deck looking like new
Helen Grant
 Natural Cedar
Easy to use fantastic finish
Will buy this product again decking looks like new so easy to apply sp
Nigel Goodier
 Natural Cedar
Easy to apply and very effective
Ronseal Decking Oil does everything as advertised. Very simple application and a very effective wood preserver. I have used it for years.

per litre
6 hours
dry time
  • UV Resistant
  • Prevents splitting & cupping
  • Does not peel or flake
  • Weather proof

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* Coverage can vary depending upon on the type of wood used and the amount of product applied. Litreage amounts shown above are total, not 'per coat' amounts.
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