When you think of your deck, you probably think of your outdoor haven – a place where memories are made with your family. Whether it’s a weekend BBQ or just a relaxing day outside, your deck deserves the best possible care. One of the most important steps in maintaining your deck is choosing the right decking oil – but with so many options, it’s hard to tell what’s right for you.

At Paddington Hardware, we’re committed to helping you make the best choice. In this guide we’ll walk you through everything you need to know; from the difference between water-based and oil-based products, to tips that will give you the best result for years to come, we’ve got you covered.

Understanding Decking Oil

What Is Decking Oil?

Over time, your deck can fall victim to the elements (foot traffic, weather, etc). Decking oil is the guardian of your deck, ensuring it stands the test of time. Depending on whether you opt for an oil-based product or a water-based product, it works by either penetrating deep into the timber, or forming a protective film on the surface. Either way the result is the same – it protects your deck and keeps it looking fresh.

Why Is Decking Oil Important?

Without applying decking oil, your deck can become faded, dry, and prone to structural deterioration. It’s important to not only apply decking oil initially, but to also include reapplication as part of your scheduled maintenance. By applying decking oil, you’re not only enhancing the natural beauty of the wood, but also ensuring it’s continued health to stand the test of time.

Water-Based vs. Oil-Based Decking Oils: Which Is Right for You?

Oil-Based Decking Oils

Oil-based decking oils are the traditional choice for a lot of people, and for good reason. These oils penetrate deeply into the pores of the wood, nourishing it from within to prevent issues like warping, splitting, and cracking. Oil-based products offer superior colour development, enhancing the natural wood grain more vividly than with their water-based counterparts, giving your deck a rich, warm appearance.

For example, Cabot's Natural Decking Oil is a popular choice among homeowners who want a fast-drying oil with a semi-transparent matte finish that will bring out the best in their timber. Not only is it great for decks, but will work wonders for your garden furniture, pergolas, fences, and gates as well. Another solid option is Intergrain Universal Timber Oil, which will create a clear finish that won't flake, blister, or peel, making it a durable choice for high-traffic areas. The Haymes Woodcare Decking Oil, known for its premium quality and long-lasting finish is another great option worth considering. Sikkens offer robust oil-based options for your deck. For the best protection, you can apply either:

• Option 1: 1 coat of Cetol HLSe followed by 2 coats of Cetol Deck for a weather-resistant, UV-protected satin finish that will keep the wood grain visible.
• Option 2: 3 coats of Cetol HLSe as a stand-alone system for both decoration and protection, maintaining the natural wood appearance with a satin finish.

Both options are critically acclaimed to resist blistering, peeling, and mould, ensuring long-lasting protection.

Water-Based Decking Oils

On the other hand, water-based decking oils are a more modern alternative for your deck which come with their own set of benefits. Although water-based oils may not penetrate as deeply, they tend to last longer than their oil-based counterparts. This is because in addition to penetrating into the timber, they also build a protective barrier on the exterior surface. They are typically easier to work with because they are quick drying and are cleaned with just water. Furthermore, unlike oil-based products, they do not trap moisture within as they are more breathable. Water-based decking oils are a great choice if you want an easy, low odour, hardwearing coating for your deck or exterior timber.

Cabot’s Aquadeck is a water-based decking oil that is guaranteed to last twice as long as traditional oil-based products. It's ideal if you're looking for something that enhances the natural look of your timber while providing long-lasting protection. Intergrain UltraDeck is another excellent water-based option that offers superior protection against the elements, making it perfect for those who want a durable, low-maintenance solution. And for those who are after something that really goes the distance, Haymes Dexpress is a great choice offering three times the lifespan of traditional decking oils. Sikkens offer a water-based product which is easy to apply, quick drying, and will maintain the wood grain with a low satin finish. Apply 3 coats of Cetol BLX-Pro for a breathable, moisture-repellent finish that accentuates the wood’s natural colour while providing long-lasting UV and weather resistance.

Key Factors to Consider When Choosing a Decking Oil

Timber Type

Not all timber is created equal, which is why it’s important to consider the type of timber your deck is made from as it can influence which oil you should use. Softwoods, such as pine, might benefit from an oil-based product which will provide the necessary penetration. On the other hand, hardwoods like Merbau and Spotted Gum offer more flexibility, allowing you to choose between oil-based or water-based oils.

Desired Finish

Our Oil-based products like Cabot’s Natural Decking Oil and Haymes Woodcare Decking Oil offer the flexibility to be tinted to a wide range of colours, allowing you to achieve a customized look. Intergrain Universal Timber Oil on the other hand, can be made into a select range of colours using the Intergrain Colour Additive. For those looking for a ready-mixed finish, the Sikkens CETOL HLSe and CETOL Deck options are available in up to 9 shades.

On the other hand, our water-based products, Cabot’s Aquadeck and Haymes Dexpress are offered in extensive tinting options, offering a broad spectrum of colours. Intergrain UltraDeck offers a select range of four colours, while Sikkens CETOL BLX-Pro can be done in eight ready-mixed shades.

Climate Conditions & Maintenance Frequency

Your local weather plays a big role in how your decking oil will perform. You might benefit from an oil-based product if your deck will experience extreme weather conditions due to their deep penetration. It is a great option if you’re committed to regular maintenance and want to benefit from the traditional finish. On the other hand, if you prefer a low-maintenance option that offers longer-lasting protection in moderate climates, a water-based product might be the better choice.

How to Apply Decking Oil Like a Pro

Preparation

The key to a flawless finish starts with proper preparation. First, you’ll want to begin by sanding, one board at a time using 80-120 grit. If you are just doing your scheduled reapplication, it’s likely that you won’t need to sand. The next step involves cleaning – you want to clean your deck thoroughly to remove any dust, dirt, or grime. A good deck cleaner, like Cabot’s Deck Clean, can go a long way to rejuvenate the timber surface prior to oiling.

Application Techniques

When it comes to applying the oil, you can use a brush, or extension pole. Alternatively, you could use the Cabot's Decking Oil Applicator to ensure you get the most even and smooth finish. To achieve the best results, you should follow the following steps carefully:

1. Start by stirring the oil thoroughly to ensure an even consistency.
2. Apply the oil along the length of the boards in long, smooth strokes.
3. Repeat row by row until you have covered the entirety of the deck.
4. Let it dry for the time specified in the instructions. This will vary for each product and will be different for oil-based and water-based products.

Once the first coat is done, it’s time for another. The general rule of thumb is to apply at least 2 coats. This recommendation can vary based on the product, and the condition of the deck. Three coats will give you a higher level of protection if you anticipate a high volume of foot traffic or harsh weather, whereas one coat might be all you need for your scheduled reapplication.

Pro Tips

• Ensure you are using safety equipment like gloves and glasses
• Overoiling the deck can result in a sticky, oily layer on the surface. To combat this:
  • Be mindful of the amount of oil you use on additional coats as it will absorb less each time.
  • Keep an old rag on standby to remove any excess oil.
• Avoid using your deck for the first 7 days after oiling it.

Common Mistakes to Avoid When Oiling Your Deck

Over-Application

One of the most common mistakes is overoiling. This can lead to a sticky, oily and uneven finish. This is why it’s important to aim for thin and even coats. This will also ensure optimal penetration and drying. Remember that less is often more when it comes to decking oil.

Ignoring Weather Conditions

Weather plays a crucial role in how well your decking oil will turn out. You should avoid applying oil in extremely hot, cold, or humid days as these conditions can affect the curing process which can lead to a poor finish. Always plan ahead by checking the weather forecast and aim for a day with mild temperatures and no rain. It’s best to apply decking oil in either spring or early summer.

Skipping Maintenance

After you’ve put in the hard yards of oiling your deck it’s important to not neglect it. Regular maintenance will extend the life of both the oil, and your deck to keep it looking new for as long as possible. This includes sweeping away debris, cleaning up spills, and reapplying oil as recommended by the manufacturer.

FAQ: Answering Homeowners' Top Questions

How Often Should I Oil My Deck?

The general rule of thumb is to apply at least one coat every 12 months, but it’s important to check the specific product instructions for more information. It might also vary based on your deck’s unique conditions.

How Do I Know If My Deck Needs Oil?

If there aren’t any blatantly obvious signs (fading, flaking, peeling), you can conduct a simple water absorption test. If water absorbs easily into the timber, this is a good sign that it may be time to oil your deck. On the contrary, if the water beads on top, your decking oil is still functional.

Can I Apply Decking Oil Directly Over Old Oil, & Can I Switch Between Oil-Based and Water-Based?

If you are reapplying the same product (water or oil based) for regular maintenance, then you can likely skip sanding, and just give it a good clean before going straight over the top.

Things get a bit more complicated when you switch the type of product as they won’t work effectively together. To achieve the best results, you need to strip and remove all the existing product and start over.

Conclusion

Choosing the right decking oil doesn’t have to be overwhelming. Making the right choice becomes a lot easier when you understand the difference between products. Whether you prefer the rich warmth of an oil-based product, or the cutting-edge durability of a water-based oil, Paddington Hardware’s got you covered. If you have any further questions, feel free to call us on 07 3369 6588 or visit out friendly team in store.