How much does deck staining cost in NSW?

In NSW, professional deck staining typically costs between $25 and $55 per square metre, depending on the size of your deck, the condition of the timber, and the product used. For a standard 20 square metre deck in the Central West, you are looking at roughly $800 to $1,500 all up, including preparation, materials, and labour. That is a wide range, so let me break down exactly what drives the price.

Why Deck Staining Costs Vary So Much

I have been staining and coating decks across Orange, Bathurst, Millthorpe, Blayney, andCarcoar for over fifty years. No two jobs are the same, and anyone who quotes you a flat rate per square metre without inspecting the deck first is cutting corners before they have even picked up a brush.

The biggest factor in cost is not the staining itself. It is the preparation. A new deck that just needs a light sand and a coat of oil is a completely different job from a ten year old deck with grey, weathered timber, flaking old stain, and mould growth in the shaded sections. The second deck might need three times the preparation of the first, and that preparation is where the real work happens.

What You Are Actually Paying For

When I quote a deck staining job, here is what goes into the price.

• Inspection and assessment: Checking the timber species, current condition, moisture content, any previous coatings, and whether there is structural damage that needs addressing before we start.
• Preparation: This is the big one. Sanding back old coatings, removing grey weathered timber with a deck cleaner or sanding, treating mould and mildew, filling gaps or replacing damaged boards, and ensuring the surface is clean, dry, and ready to accept the new stain.
• Product and application: Selecting the right stain or oil for your timber type and exposure, then applying it correctly. Most decks need two coats minimum, with proper drying time between each coat.
• Clean-up and protection: Masking off adjoining walls and surfaces, covering garden beds, and cleaning up thoroughly once the job is complete.

On a typical job, preparation accounts for around 60 to 70 per cent of the total time. The actual staining is the fastest part. If someone quotes you a suspiciously low price, ask them what preparation is included. You will often find they are planning to slap a coat of stain over whatever is already there. That will look acceptable for about three months before it starts peeling.

Typical Price Ranges for Central West NSW

Based on jobs we have completed in the Orange and Bathurst region, here are realistic price ranges as of 2025.

• New or near-new deck (light prep): $25 to $35 per square metre. The timber is in good condition and just needs a light sand and clean before coating. Two coats of quality decking oil or stain.
• Moderately weathered deck: $35 to $45 per square metre. The timber has greyed off and may have some old coating to remove. Requires sanding, cleaning, and possibly spot treatment for mould before two coats of stain.
• Heavily weathered or previously coated deck: $45 to $55 per square metre. Significant preparation needed. Old coatings stripped back, damaged boards replaced or repaired, full sand, treat, and two to three coats of stain or oil.

For context, a standard residential deck in Orange is typically between 15 and 30 square metres. So you are looking at anywhere from $500 for a small, well-maintained deck up to $1,650 or more for a larger deck that has been neglected for a few years.

Why Our Climate Makes Deck Maintenance Essential

Living at 862 metres elevation in the Central West means your deck cops a beating that coastal decks simply do not experience. We get frost for five to eight months of the year, which means your timber is going through freeze and thaw cycles repeatedly. That opens up the grain, lets moisture penetrate deeper, and accelerates weathering.

Then in summer, temperatures push past 35 degrees and our UV levels are among the highest in Australia. That UV breaks down the lignin in exposed timber, which is why untreated decks go grey so quickly up here. A deck in Orange will grey off in six to twelve months without protection. The same deck on the coast might take two years.

This means deck staining is not a cosmetic luxury in the Central West. It is essential maintenance. A well-maintained deck that gets re-stained every two to three years will last decades. A neglected deck can deteriorate to the point where boards need replacing within five to seven years, and that is a much more expensive fix than regular staining.

Choosing the Right Product

I have tested just about every deck stain and oil on the market over the years. For our conditions in the Central West, I keep coming back to the Dulux Intergrain range and a few other premium products that are formulated for harsh Australian conditions.

There are three main categories of deck coatings, and each sits at a different price point.

• Penetrating oils: These soak into the timber rather than forming a film on top. They are the most natural-looking option, they will not peel or flake, and they are the easiest to maintain. The trade-off is they need reapplication more frequently, typically every 12 to 18 months in our climate.
• Semi-transparent stains: These add colour while still letting the grain show through. They last longer than oils, usually two to three years, and offer better UV protection. This is my most popular recommendation for decks in Orange and surrounds.
• Solid stains or deck paints: These hide the grain completely and offer the longest protection, up to four or five years. But they can peel if the preparation is not thorough, and once you go solid you cannot easily go back to a natural timber look.

The product itself typically adds $8 to $15 per square metre to the job cost, depending on what you choose. I always recommend spending a bit more on a quality product. The labour cost is the same whether you are applying a $40 tin or a $90 tin, so the upgrade in product quality is well worth it.

DIY Versus Professional: The Real Comparison

I understand the temptation to do it yourself. A tin of deck oil and a roller from the hardware store might cost you $150 for a small deck, compared to $800 or more for a professional job. On the surface, the maths seems obvious.

But here is what I see regularly. Homeowners who have applied deck stain over dirty timber, over old flaking coatings, or in the wrong weather conditions. The stain fails within months, and now they need a professional to strip the whole lot back and start again. That remediation job costs more than the original professional staining would have.

The preparation is the part most DIY jobs get wrong. You need to sand to the right grit, not too coarse and not too fine. You need the timber moisture content below 15 per cent. You need to apply in the right temperature range, which in our region means watching the forecast carefully and avoiding those early morning frosts and scorching afternoon sun.

A professional job also means someone is accountable for the result. Every deck staining job I do is owner-supervised, meaning I am personally on site ensuring the preparation is done right and the product goes on correctly. If something does not look right, it gets fixed before we move on.

How Often Should You Restain Your Deck

In the Central West, I recommend the following maintenance schedule for decks.

• Penetrating oil finish: Every 12 to 18 months. A quick clean and a fresh coat is all it takes. These maintenance coats are faster and cheaper than the initial job because minimal preparation is needed.
• Semi-transparent stain: Every two to three years. Check in spring for any areas that have worn through, particularly high-traffic zones near doorways.
• Solid stain or deck paint: Every three to five years. Watch for any cracking or peeling and address it before it spreads.

Staying on top of maintenance coats is far cheaper than letting the deck deteriorate and paying for a full strip and restain. A maintenance coat on a well-kept deck might cost $15 to $25 per square metre, compared to $45 to $55 for a full restoration.

Getting the Best Value From Your Deck Staining

If you want to keep costs down without compromising on quality, here are my practical tips.

• Maintain regularly: Do not wait until the deck looks terrible. Regular maintenance coats are cheaper and extend the life of the timber.
• Book in autumn or spring: These are the best conditions for deck staining in our region and you will get a better result that lasts longer.
• Bundle with other work: If you are having your house painted, adding a deck stain to the same job reduces the overall cost because we are already set up on site.
• Keep it clean: Sweep your deck regularly and wash it down a couple of times a year. Dirt, leaves, and mould break down coatings faster.

If your deck is looking tired or you are not sure what condition the timber is in, give Murrays Painting a call or fill out our enquiry form for a free quote. I will come out, inspect the deck, and give you an honest assessment of what it needs and what it will cost. No pressure, no obligation, just straightforward advice from someone who has been doing this for over fifty years across Orange, Bathurst, and the Central West.