Why sand before you oil?
Oil over dirty, greyed-out timber can trap mould and flake early. Sanding takes off the oxidised surface fibres and old coatings so the new oil can soak into fresh timber.
What’s usually involved
- ✓Punching nails below the surface and re-screwing loose boards
- ✓Coarse sanding to strip grey timber and old coating
- ✓Finer sanding for a smooth, barefoot-friendly finish
- ✓Edge and stair sanding by hand machine
- ✓Vacuuming dust from between the boards
Typical cost
As a guide, full mechanical sanding back to bare timber plus 3 coats of trade decking oil typically ranges from $45 to $75 per square metre, depending on the existing coating (acrylic paint and stain take longer to strip than oil), stairs and handrails. Your specialist will give you a firm price after seeing the deck.
Coastal conditions to keep in mind
Salt air, strong UV and summer heat on the Illawarra coast break down deck coatings faster than inland. North- and west-facing decks and decks close to the beach usually need more frequent maintenance. Follow the oil maker’s guidance on recoat intervals and on drying time, and avoid coating in rain, dew or full midday sun.
Frequently Asked Questions
How much does deck sanding cost per square metre?+
As a guide, full mechanical sanding back to bare timber plus 3 coats of trade decking oil typically ranges from $45 to $75 per square metre, depending on the existing coating (acrylic paint and stain take longer to strip than oil), stairs and handrails. Your specialist will give you a firm price after seeing the deck.
Is sanding dusty?+
Sanding makes dust, but specialists usually use machines with dust collection and vacuum between the boards. Close nearby windows and move outdoor furniture before they arrive.
How Shellharbour Deck Care works
Shellharbour Deck Care is a lead-matching service connecting Illawarra and South Coast homeowners with independent timber deck restoration specialists. We don’t do the work ourselves. The specialist you’re matched with quotes, carries out and is responsible for the job, so ask them about insurance, the products they use and any warranty before you go ahead.