Ronseal Ultimate Protection Decking Oil

  4.9/5.0 (170 reviews)
On-screen colours may vary according to different screen calibrations. We therefore always recommend applying a test area.
2 coats = Recommended
Total: enter area

Wood type and application method can vary coverage.

  • A tinted decking oil suitable for bare, pressure treated or preserved decking
  • Perfect for all smooth and grooved, softwood and hardwood decking
  • Offers up to twice the resistance as standard decking oils
  • Excellent water repellency, rainproof in just 90 minutes
  • Penetrates deep into the wood to provide a long lasting finish
  • Replaces natural oils lost through weathering
  • Nourishes the timber to help prevent cracking, splitting and warping
  • Available in a range of natural wood tone colours
  • Low V.O.C
Brand Ronseal
No. of coats 2
Coverage Up to 9 per litre
Drying time 24 hrs
Size 5L
MPN 38524, 38526, 38525, 37300, 38528, 38527
GTIN 5010214872978, 5010214872992, 5010214872985, 5010214873005, 5010214872954, 5010214872961

Ronseal Ultimate Protection Decking Oil will leave decking protected and looking great for longer with a natural or tinted colour finish.

  • Have grooved decking? You'll normally need double the quantity. Our handy coverage calculator will help you choose the right amount

Decked areas to be treated should be clean, dry and free from traces of dust, dirt, oil, grease, wax and silicone.

New Decking Preparation

For all bare wood decking including tantalised, pressure treated and preservative impregnated decking timbers.

New softwood decking

  1. Treat with a suitable exterior wood preservative for the best protection
  2. If possible, preserve all sides including end grain prior to installation
  3. Sweep the decking with a stiff broom to remove all traces of surface dirt and debris
  4. Use a suitable decking cleaner if required before oiling

New hardwood decking

Hardwood decking usually requires a period of weathering to allow the surface grain to open up. This allows for better absorption of the decking oil. Check the decking manufacturer's guidance on how long decking should be left to weather before treating.

Old Decking Preparation

Old coating type finishes such as decking paints, varnishes and varnish type stains must be fully removed back to bare wood before oiling. Depending on the condition and type of finish, it may require more than one attempt to fully remove the old coating.

  1. Ensure that all 'coating' type finishes have been fully removed to expose bare wood by either jet washing or using a dedicated decking stripper and remover
  2. Old oiled finishes should be cleaned thoroughly with a suitable decking cleaner
  3. For decking affected by mould, algae or moss, or to restore the colour of decking that has turned grey or silver over time, use a decking restorer or reviver gel
  4. For the best protection, treat with a suitable exterior wood preservative
  5. If possible, preserve all sides including end grain prior to installation
  6. Sweep the decking with a stiff broom to remove all traces of surface dirt and debris before oiling

Always do a small test area before starting any project and follow the manufacturer's instructions on the tin at all times. Do not apply in damp conditions, when rain is likely, or when are temperatures below 10℃.

  1. Shake the tin thoroughly before pouring the entire contents into a suitable metal or plastic container; if using more than one tin mix them together (Do not thin or dilute)
  2. Apply liberally to ensure that even penetration and complete coverage of the decking is achieved
  3. Treat 3-4 decking boards at a time to avoid overlap marks
  4. Redistribute any excess oil along the decking boards or wipe off with a clean cloth
  5. Allow 4 hours drying time between coats
  6. Apply an even second coat as above

Regular Cleaning

To preserve the oiled finish for longer, we recommend that wooden decking is swept with a stiff broom on a regular basis to remove loose leaves, dirt and other organic matter. This prevents a build up of organic matter that can settle on the deck and in the grooves, which can degrade and damage the finish and decking timbers over time.

Deep Cleaning

For deep cleaning, use Ronseal Decking & Garden Cleaner.


Inspect the finish on an annual basis and apply a fresh coat of oil as and when required.


Stubborn marks and stains may require a light sanding before re-applying a thin coat of Ronseal Ultimate Protection Decking Oil to the affected area.

170 customer reviews
Great coverage long lasting product by EDWARD GALLAGHER

A first class decking protector with easy application and quick drying will transform your decking.

Reviewed Natural on: 24/03/17
Fast delivery ! by Russell Wood

Does exactly what it says on the tin (smile)

Reviewed Natural Oak on: 14/03/17
Great product - good coverage and colour as described by Jennifer Riley
Reviewed Teak on: 09/03/17
Excellent product/speedy delivery/excellent price compared to b&q by MR T J GRAYLING

always use it on my decking.

Reviewed Natural on: 03/03/17
Does what it says on the tin by Pauline Sparks

Excellent product at a really good price

Reviewed Natural on: 26/11/16
As it stated on the tin by David Matthews

First class and at a great price. Easy to use a not bad coverage. Would use again without hesitation.

Reviewed Natural on: 24/11/16
Top quality product by Alec Grant

Nothing bad to say about this product, everything is excellent.

Reviewed Natural Oak on: 22/11/16
All good by Roman Laba

Very good product.

Reviewed Natural on: 16/11/16
Does what it says on the tin by Crozier David
Reviewed Natural Oak on: 11/11/16
Excellent product by Tim Newling

Great product great customer service & price.

Reviewed Natural on: 09/11/16
Very good product does just what it says on the tin !!! by Craig Smith

Great product that is easy to apply, cleaning up afterwards is quick and easy.

Reviewed Natural on: 08/11/16
Does what it says by Mr Dennis Freeman

Easy to apply excellent finish can't fault it

Reviewed Natural on: 03/11/16
Good product, no problems by G Tarrant

as has probably been said many times before:it does exactly as it says on the tin

Reviewed Natural Oak on: 02/11/16
Ok, but take care with drying time / temperature by SJP

Took longer than expected / advertised to fully dry absorb, which caused some emulsification following an overnight rain shower. Affected areas cleaned off again, it did finally give a good - and hopefully durable - finish.

Reviewed Natural on: 01/11/16
Excellent product by Douglas Lindsay

If, like me, you are water-jetting the deck to remove previous finish, you will need at least twice the recommended quantity of oil to get good coverage due to the porosity of the wood; it is worth it!

Reviewed Dark Oak on: 31/10/16
This is a fabulous product, clearly providing the ultimate protection for the wood by Paul McCann

I would not hesitate to use this product once again. The oil clearly penetrated the wood and provided an expert almost gloss like finish. It is clear that the wood will be protected against the outside element following its use with the result looking truly professional. I anticipate that it will help protect the wood for some considerable time. The product is a fine example of the old adage, namely, "you get what you pay for" and is exemplary.

Reviewed Teak on: 27/10/16
Does exactly as expected by Roger Massey

Excellent product that enhances the natural wood finish,

Reviewed Natural on: 25/10/16
Easy to use applied without any problem by Fredrick Jaworski

Nice finish easy to work with

Reviewed Natural on: 25/10/16
Exceptional Quality by Mario Aragones

As always, the price is very good and the product does what it says on the tin. Very easy to apply with a standard roller, good coverage and colour is great, I used natural oak. Would strongly recommend

Reviewed Natural Oak on: 12/10/16
As on the tin by Derek Bond

More expensive than others but easy to apply and dried well without a glossy finish, leaves the wood looking natural. The colour was more yellow than pine but is OK

Reviewed Natural Pine on: 12/10/16