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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 shielding 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.

Ronseal Decking Oil Multi-Buy Discounts

  • Buy 2 for £21.20 each - save 10%
  • Buy 3 for £20.61 each - save 12.5%
  • Buy 4 or more for £20.02 each - save 15%
  • Buy 6 or more for £19.43 each - save 17.5%
  • 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 372 reviews.

Filter:   All reviews (372)   5 stars (342)   4 stars (28)   3 stars (2)  

Clive Walters
Made the decking look good
Gave the decking a new look hope it lasts, time will tell
William Brunton
Great product ,great price ,delivery quick
Stuart Harropp
 Natural Oak
Very good product
I have used this before so did know what to expect and it met all my expectations.
Paul Nickson
 Natural Cedar
Fantasitic product at a great price
I paid the same price at B and Q for half the amount. Found this on the web so got 5l for the same price of 2.5l at B and q. Thanks Wood Finishes.
Suzanne Eastwood
Excellent protection for our patio decking
We have a large expanse of patio decking and balustrade which we treat thoroughly with clear Ronseal Oil twice a year, one coat on the verticals and two coats on the horizontal base. We pressure wash the area first.
Sharine Edwards
 Natural Pine
We use this product ever year to keep our decking in good condition.
Chris Kiely
 Natural Oak
Excellent value for money. £s cheaper than major diy stores
Kevin Lovell
 Natural Oak
Easy to apply and a great finish.
The coverage was broadly in line with the indicator on the Wood-finishes website. The 1st coat really soaks in and so it looks like you may have underestimated, but the 2nd coat goes a long way. The decking was looking tired before but it have come up really well. The finish may be a little darker than expected but this has helped to hide the stained patches and so it now looks more uniform. With the decking oil it will now be easy to give it a quick extra coat if required without having to rub it down.
Easy to apply
Has throroughly waterproofed the deck.
Kathy Langdown
Brilliant, put two coats on and it looks as though it has been varnished !
5 litre tin delivered on exact date within within arranged time. Wonderful as needed to take it to paint my decking at van. Would definitely buy from you again as I also saved over £15.
Claire White
Fab product nice finish
Good product good finish great value with wood finishes direct :-) will be back
 Natural Cedar
Excellent product
Easy to use, quick touch dry,super finish
Chris Johns
 Natural Oak
Very pleased with results
Best treatment that I have ever purchased
Quality product would use again
I think this is a very good deck oil, a couple of coats and wood starts to repel water very well. Has a slight tint which refreshes the appearance of the wood without radically changing the colour.
Alan Murphy
Great product
It is waterproof you can see the water lying on the surface very good decking oil.
Richard Campbell
Very good
Much cheaper than the high street .
Michael Stockley
Easy to use product
Easy to apply, very runny, just need to decant it carefully into smaller container to use.
Elizabeth Scales
 Natural Oak
Dies what it says on the pot
Excellent coverage drys in 6 hours colour as on pot. Lovely will definitely use again
Philip Cooper
 Natural Pine
Excellent ,looks great ,easy to use ,sprayed it on decking simple.
It is very easy to use, I sprayed it on my decking, two coats as spec, rain is beading nicely and colour looks great would recommend no problem thanks.
James Allan
Good customer service arrived next day.
Great product would use again. Ronseal decking oil natural after application leaves a wet look finish quality 10/10.

per litre
6 hrs
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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