Ronseal Decking Oil - 5L

  4.9/5.0 (897 reviews)
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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 boards
  • High-build offers good year round performance
  • Excellent water repellency, beads rain thereby stopping water ingress
  • In-built biocide protects against mould, mildew and funghi
  • Oil ingredients help feed the decking to reduce warping, swelling, drying and splitting
  • Contains UV filters to protect against sun damage
  • Enhances the natural grain of the timber
  • Solvent-based formulation for deep penetration
Brand Ronseal
No. of coats 2
Coverage Up to 10 per litre
Drying time hrs
MPN 35190, 35803, 35804, 35805
GTIN 5010214867479, 5010214867486, 5010214867509, 5010214858057

Ronseal Decking Oil will leave softwood and hardwood decking protected and looking great for longer with a natural clear 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
  • Looking for an anti-slip finish? Apply one coat of Ronseal Decking Oil then overcoat with one coat of Osmo Anti Slip Decking Oil

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 new softwood decking 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 their wood deck should be left to weather before applying decking oil.

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 garden 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 test area before starting any project to check suitability and compatibility. Do not apply Ronseal Decking Oil in wet conditions or if rain, frost or snow is likely before the product is dry. Decked areas should be completely dry before application. Follow the manufacturer's instructions on the tin at all times.

  1. Stir thoroughly before and periodically during application
  2. Apply a thin, even film of decking oil with a suitable decking applicator
  3. Work the oil in to the surface of the decking boards
  4. Wipe off any excess oil with a clean lint-free cloth
  5. Allow the first coat to dry in accordance with environmental conditions
  6. Apply a second coat as above
  7. Allow 24 hours to dry completely before heavy use

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

Regular Cleaning

To preserve the look and performance of the oiled finish for longer it is recommended that decked areas are swept with a stiff broom on a regular basis. This is to remove loose leaves, dirt and other organic matter that can settle on the wood deck and in the grooves, which can degrade or damage deck finishes and decking timbers over time.

If signs of mould or algae appear, use an appropriate decking cleaner. The condition of wooden decking should be inspected on a regular basis and treated as required.

Deep Cleaning

Scuff marks, stains, grease and other surface contaminates can normally be cleaned with a decking cleaner. Stubborn marks and stains may require a light sanding and a thin application of oil to restore.


High foot traffic areas that start to appear worn or tired, or that are losing the ability to repel water effectively can be easily restored. First clean with a suitable decking cleaner then re-apply a thin coat of Ronseal Decking Oil to the affected area for an invisible repair.

897 customer reviews


Reviewed Natural on: 14/02/17
Works well Has a waxy texture but dries to a hard finish by Stewart Page

Used it at the sailing club last year for the first time on existing decking, a new timber table and field gate. Keeps out the water in an extreme sea environment. Just purchased more to re-coat in the spring.

Reviewed Natural on: 14/02/17
Does what it says on the tin easy to use by Mark Sellwood

Used it on my decking and on my man cave it works a treat

Reviewed Natural on: 08/02/17
Having used other simular Products wouldn't hesistate in using again by David Rew

Quality Product at a Very competitive price.Exceeded expectations

Reviewed Natural Cedar on: 01/02/17
Great by Mick Williams

Super dupa

Reviewed Natural Oak on: 31/01/17
Does Wat it says on the tin by Neil Millar
Reviewed Natural on: 27/01/17
Far cheaper than any high street DIY retailer Very quick delivery by Wood Finishes Direct by D Kidd

Decking oil looks great, used the clear finish, greatly enhanced the wood and now fully water proof. Applied using a roller. Water beads up and runs off decking. Great service from WFD.

Reviewed Natural on: 10/12/16
Used on my decking around my caravan in west wales by Phillip Hollidge

the decking oil brought out the grain in the timber and the finish was perfect many other caravan owners asked about the product.

Reviewed Natural on: 29/11/16
Does what it's says on the tin by Colin Payne

Easy to apply with good results.

Reviewed Natural on: 28/11/16


Reviewed Natural Pine on: 26/11/16

bought two of these. they were half price. quick delivery. great product for our decking

Reviewed Natural Pine on: 23/11/16
Great product by John Williams

Excellent value

Reviewed Natural Oak on: 19/11/16
This is the second time this year I have purchased this product well recommended by Nigel Halliday

it does what it says on the tin

Reviewed Natural Cedar on: 18/11/16
My regular Ronseal decking oil but at a better price! by Irene Melia

Cheaper than in the shops by half price so a great deal as I buy so much for the big decking area in my garden. It arrived before the delivery date packed well and courteously carried into my hallway. Altogether really good buying experience and will shop with Wood Finishes Direct again.

Reviewed Natural on: 17/11/16
Fantastic price and delivery before expected by Mr Ashley Gueran

Bit darker than expected, but looks great after application.

Reviewed Natural Oak on: 17/11/16
Great product by Jamie Barrow

Two coats brought my decking back to looking like new. Great value for money and great service.

Reviewed Natural on: 16/11/16
Good value by B Phillips

To repeat excellent value and quick delivery and easy to apply

Reviewed Natural on: 16/11/16
Quick service and fast delivery by John Neal

Perfect product.

Reviewed Natural on: 12/11/16
Brilliant ,does the job well ***** by Sandra Mclellan

well worth getting and finish looks amazing.

Reviewed Natural Cedar on: 11/11/16
Excellent, does all that I wanted by David Cole

Coated a tanalized boarded fence and looks great.

Reviewed Natural on: 11/11/16