10 Best Decking Oils 2025 in the UK

The Cuprinol UV Guard Decking Oil Natural 5L is designed to nourish and protect wooden decking while offering a slightly tinted, gloss finish. It features a convenient oil base which aids in deep penetration into the wood to enhance durability. One of its standout features is UV protection, helping to preserve the wood's color and longevity even under prolonged sun exposure, which is ideal for outdoor decking.

Application is versatile, allowing for use with a brush or a Cuprinol sprayer, and it offers decent coverage of up to 8m² per litre with two coats when brushed on. However, coverage might vary with different application methods and surface conditions. The drying time is reasonable at up to six hours, though this can be influenced by weather and surface type, which might require careful planning around weather conditions to avoid extended drying periods.

Weighing 5.43 kg and coming in a 5-litre tin, it's a manageable option for DIY enthusiasts, although its weight might be a consideration for some users in terms of handling. Customer satisfaction is high, reflected in its 4.5-star average from a substantial number of reviews, indicating reliability and positive user experiences.

On the downside, the gloss finish might not appeal to those seeking a more matte appearance, and while the product offers good coverage, those with larger areas to treat might find it necessary to purchase multiple tins. Additionally, for individuals sensitive to chemical smells, ensuring adequate ventilation during application is advisable due to its oil-based composition. Despite these minor drawbacks, the product's protective qualities and ease of application make it a solid choice for anyone looking to maintain and enhance their decking.

The Roxil Wood Waterproofing Liquid (5L Clear) is designed to protect and maintain the appearance of outdoor wood surfaces such as decking, fences, sheds, and furniture. Its key strengths include excellent waterproofing capabilities, which help to protect wood from warping and improve dimensional stability. The product also reduces organic growth, making it resistant to mould and algae, which is particularly beneficial for outdoor applications.

Additionally, it is non-biocidal and ready to use straight out of the container, simplifying the application process for users. The clear, matte finish preserves the natural look of the wood while providing a long-lasting protection layer. With a coverage of up to 2500 square feet, it offers substantial area coverage for a 5-litre container.

The product has received positive customer feedback, boasting a 4.4 out of 5-star rating from over 6,000 reviews, indicating general satisfaction with its performance. The Roxil Wood Waterproofing Liquid is ideal for individuals seeking to enhance the longevity and appearance of their outdoor wooden structures without altering their natural look.

The Ronseal Ultimate Protection Decking Oil Natural 5L is designed with a water-based linseed oil formula that penetrates deeply into wood, providing robust protection. One of the significant strengths of this decking oil is its weather resistance, ensuring that outdoor decks can withstand various environmental elements. It is also formulated to restore the natural look of wood, making it appealing for those who prefer a natural aesthetic.

Additionally, the product boasts a glossy finish, which can give your decking a polished appearance. Each litre of oil covers approximately 8 square meters, making it relatively efficient for larger areas. However, the drying time of water-based oils can be longer compared to solvent-based oils, which might be a consideration if you need a quick turnaround time.

The product does not explicitly mention UV protection, which is essential for preventing wood from fading due to sun exposure. This decking oil is best suited for both professional and amateur use, making it versatile for various levels of expertise. Its application method is straightforward, requiring only a brush, and it comes in a sizeable 5-litre tin, sufficient for extensive decking projects.