Timber Deck Maintenance

Congratulations on utilizing Oliver’s Carpentry to Build your Timber Deck. If you follow the Guide below you will be able to ensure your timber work stays in tip top shape for many years to come.

It doesn’t matter if you reside in temperamental Adelaide or Tropical North Queensland; a backyard is an integral element of family life in Australia. And what greater means to take full advantage of the wonderful outdoors than with a pleasing and appealing timber deck?
Apart from the fact that timber decks add space to indoor/outdoor areas, it also adds real value to your house. However, a certain period comes when the deck begins to wear and tear after it has been subjected to the weather for six months, you can use a little first aid to make it look new again and prevent deterioration. The secret to making your deck one of the hero spaces of your house would be to keep it from deteriorating with routine maintenance and care. Follow our actionable guide to maintain the look of your deck for a long time.

deck clean
Washing and pressure cleaning

Before starting any repair work, remove wood fibers and dirt from the deck using a pressure washer. Make sure you maintain the movement of pressure stream when using one. If not, you can gouge the wood and cause damage. You will need to leave the deck to dry out upon completion of the pressure cleaning.


Repair proud screws / nails

In case you came across a nail or screw which has worked loose from a plank, Ensure you contact Oliver to arrange remediation as necessary. If your Timber deck was not built by Oliver and not covered by his 15 year warranty, feel free to attempt repairs yourself using the following methods: remove such nail using a hammer or pinch bar. Reattach the plank with a fixing that is longer or wider than the removed nail.

deck clean2

Repair Split or unsightly timbers

If Oliver’s Carpentry Built your timber deck this part will be covered under your warranty, however if not, feel free to use this guide to attempt repairs yourself.

If there is a board/plank which is split down the middle or unsightly, you can fix this by marking the damaged board close to the leading edge of the first support joist which is completely beyond the split.
Use jigsaw or multi tool to cut the board, remove the deck screws or nails and remove the wood that is damaged. Attach support block to the joist using nails or screws. The board to be supported will be held in place by the support block. Cut an appropriate size of replacement board, pre-drill and attach it with deck screws to the joists and support block.
There is a chance that the replacement board could appear broader and higher in relation to the existing boards, however it may shrink as it acclimatizes to its new environment. In the event the board still seems to be broader and higher compared to the surrounding boards after several weeks, it is possible to smooth it down using a belt sander or planer. But, you would have to ensure that the screw or nail heads are driven further into the wood before sanding begins to prevent damaging them.

deck clean3

Stain and Seal

Despite the fact that the pressure-treated timbers used in the deck subframe Oliver’s Carpentry built are resistant to insects and rot, The Decking is most likely a native species Hardwood and while extremely durable, excess sun or moisture will degrade the appearance of the timber if it is not adequately maintained. Without altering the color in order to maintain it, use an oil or water based decking oil with out tint, and apply 2 coats with an applicator pad. Depending on which type of product you initially use to seal your timber deck this will determine what you continue using for the maintenance of the deck through its life. If you use Water based, you can switch to Oil based after a thorough deck clean. If you use Oil based and want to switch to Water based you need to ensure the oil has well and truly worn off and then give a thorough clean enabling the timbers grain to open up and accept the new water based sealant. Idealy you would simply stick with one product though.

There are pro’s and Con’s to Oil and Water based sealants, and Oliver recommends Wattyl Weather Guard Oil Based Decking Oil.

When Oiling the deck Oliver likes to cut in around the edges with a paint brush, like you were painting a wall, to prevent getting oil stains on walls or painted surfaces. Over large open areas an applicator pad is perfect and does the job quickly and efficiently.


Inquire at any good paint store for a decking oil applicator pad and they will point you in the right direction. Avoid rollers as they will splash oil on the surrounding surfaces and not provide enough pressure to the timber to enable effective absorption of the oil.


We recommend 2 coats of oil initially and 1 coat there after every 6 months. This varies depending on the location of your deck: Exposed, under cover or both. It is also dependent on the timber type. One pressure clean and coat every 6 months is a good guide though, and Oliver will specify the requirements of your deck upon completion.

After each coat wait around 2 hours before reapplying (depending on the product recommendations) and then after completion wait around 24 hours until allowing traffic onto the surface.


If you have any other queries or concerns with the maintenance of your timber deck please feel free to discuss them with Oliver at any stage on 0438-803-835.


Thank you for reading our decking maintenance guide and Oliver’s Carpentry would like to wish you many years of enjoyment on your new Timber Deck.