How do I use it?

Areas of use: outside
Semi Transparent
Drying time
90 Minutes

How much do I need?

Coverage calculator

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Ultimate Protection Decking Oil

Ronseal Ultimate Protection Decking Oil provides superior, natural looking protection, for a longer lasting finish. Our unique formula penetrates deeper into the wood to provide increased durability. Providing a lightly tinted finish it will give double the weather resistance and foot traffic protection versus standard decking oils,

Before You Start

Untreated, weathered decking: For untreated grey and weathered wood use Ronseal Decking Restorer to restore the deck’s natural colour and provide a sound base for application which ensures the oil penetrates effectively.

Previously finished decking: Use Ronseal Decking Cleaner and Reviver to remove any dust, grease, oil, mildew, algae and other contaminants. Remove any loose, flaking or peeling coatings. To avoid patchiness, and if using a contrasting colour, make sure you remove all previous finishes using Ronseal Decking Stripper. Ensure cut ends are adequately protected using Ronseal Decking End Grain Protector.

New wood: New decking should be allowed to weather naturally (usually 6 months). This will make sure any pre-treatment has eroded allowing the oil to penetrate and adhere to the deck. Clean the deck with Ronseal Decking Cleaner and Reviver using a scrubbing brush to open the pores of the wood and remove any contamination from the manufacture of the timber. Rinse thoroughly with clean water ideally using a pressure washer. Allow to dry fully before overcoating. Test effectiveness of the cleaning by splashing the deck with water. If beading occurs, re-clean. Retest before applying any oil. The shade label indicates approximate colour only. We recommend you test a small area to determine the final colour which may be influenced by the texture, grain, colour, porosity, type of wood and previous treatment.


  • Ensure the decking is fully dry. Do not apply in damp conditions or when rain is likely before the product has dried. Do not apply below 10°C.
  • Shake thoroughly before pouring the entire contents into a suitable metal or plastic container. If using more than one tin mix them together. Do not dilute.
  • Apply a “flood coat” using a good quality brush or roller.
  • Apply an even second coat ensuring the oil doesn't pool. Allow 4 hours between coats.


Usage Areas: Ridged or smooth hardwood and softwood decking.
Compatibility: Suitable for use on untreated, weathered or previously oiled decking. If using a contrasting colour previous finishes must be fully removed.
Clean Up: Clean equipment with warm, soapy water.