The short answer
Choose oil (or hardwax oil) for a natural, matt look that can be spot-repaired and refreshed without sanding; choose polyurethane for a harder-wearing surface film that needs less frequent maintenance but usually a whole-area recoat when it wears. Both suit oak floorboards and parquet – the right choice depends on the look you want, how the room is used and how much maintenance you're happy to do.
How each finish works
Oil penetrates the timber and hardens within the wood fibres; polyurethane sits on top of the timber as a continuous clear film.
- Penetrating oil – soaks in, leaving the surface feeling like timber. Protection comes from oil within the wood, refreshed with maintenance oil.
- Hardwax oil – a blend of oils and waxes. Penetrates like oil but leaves a thin, more protective layer at the surface.
- Water-based polyurethane – a clear film, available from matt to gloss. Stays close to the natural colour of oak. Some systems are two-part (2K) for higher durability.
- Solvent-based polyurethane – a tough film with a warm amber tone. Stronger odour during application.
Oil vs polyurethane compared
Polyurethane wins on day-to-day resistance; oil wins on look and repairability.
| Oil / hardwax oil | Polyurethane | |
|---|---|---|
| Look | Natural, matt, "unfinished" feel | Matt to gloss; more "coated" |
| Colour | Natural, white, tinted and smoked options | Clear; solvent-based adds amber |
| Scratch and spill resistance | Moderate | Higher |
| Local repairs | Usually possible – sand and re-oil the patch | Difficult – usually whole-area recoat |
| Routine maintenance | More frequent maintenance oil/products | Less frequent; screen and recoat when worn |
| Ageing | Develops patina | Wears in traffic lanes over time |
| Switching later | To polyurethane needs full sand | To oil needs full sand |
Exact performance varies by product – compare manufacturers' data sheets, not just finish types.
Finishes and slip resistance
The finish determines a timber floor's slip rating, so choose a tested product where a rating is required. Under the NCC, stair treads need P3 (dry) or P4 (wet) slip ratings tested under AS 4586; level internal floors are not generally mandated (SlipTest). Ask the finish maker for test results for the specific product and sheen. More in slip resistance on timber stairs.
Which finish for which room?
Match the finish to the room's traffic and the owner's tolerance for maintenance.
| Room or situation | Common choice | Why |
|---|---|---|
| Living, bedrooms, low traffic | Oil or hardwax oil | Natural look, easy refresh |
| Kitchens | Water-based polyurethane or well-maintained hardwax oil | Spill resistance vs easy repair – see oak flooring in kitchens |
| Homes with dogs | Either – oil hides and repairs scratches; poly resists them | See timber floors and pets |
| Stairs | Product with the required slip rating | NCC requirement |
| Commercial, retail, hospitality | Durable polyurethane system or commercial-grade hardwax oil | Traffic and maintenance programme |
| Herringbone and chevron | Either | Oil accentuates the light/dark contrast of the pattern |
Colour and sheen options
Both finish types come in a range of colours and sheens – oil systems tend to offer more natural, tinted and smoked looks, while polyurethane offers more control over sheen.
| Look | Oil / hardwax oil | Polyurethane |
|---|---|---|
| Natural, "raw wood" | Natural or "invisible" oils | Ultra-matt water-based polys |
| White / Scandinavian | White-pigmented oils | Stain or tinted sealer under a clear coat |
| Smoked, grey or dark | Tinted oils, reactive stains | Stain under clear coat |
| Satin to gloss | Limited – oils are mostly matt to satin | Full range |
Always test the colour on a sample of the actual oak, sanded to the same final grit the floor will receive.
Decision checklist
- Look – do you want the timber to feel natural and matt, or protected under a clear film?
- Traffic – kids, dogs, high heels, commercial footfall?
- Maintenance – regular light upkeep (oil) or occasional bigger recoats (polyurethane)?
- Repairs – how important is fixing a local scratch without redoing the room?
- Slip – are there stairs or areas needing a rated finish?
- Programme – how long can the room be out of use while coats cure?
Cost
Sanding and coating typically costs about $30–$70/m² installed in Australia (AUD incl. GST) (WhatsTheDamage). Within that range, multi-coat 2K polyurethane systems and specialty coloured oils tend to sit higher. Over the life of the floor, oiled floors cost more in routine maintenance; polyurethane floors cost more per recoat.
Raw parquet and finish choice
If the parquet is supplied raw, you can choose any finish system on site; if it's prefinished, the factory finish sets your maintenance products. Whether a Timbo batch is supplied raw or pre-finished: ask Timbo. For raw floors, see sanding and finishing oak for the process and raw unfinished oak flooring for the product type.
Maintenance basics
- Clean with the finish maker's recommended cleaner – the wrong product can damage either finish.
- Use felt pads under furniture and mats at entries.
- Avoid wet mopping; use a well-wrung mop or a spray-and-wipe system.
- Oil: apply maintenance oil as the schedule recommends, focusing on high-traffic areas.
- Polyurethane: screen and recoat before wear reaches bare timber.
See oak floor care and maintenance.
Sources
Frequently asked questions
Which is more durable, oil or polyurethane?
Polyurethane generally resists scratches, spills and wear for longer between maintenance, because it forms a tough surface film. Oil is less resistant day to day but easier to repair locally. Durability also depends on the specific product and how many coats are applied.
Can you put polyurethane over an oiled floor?
Not directly. Oils and waxes stop polyurethane bonding. Changing from oil to polyurethane normally means a full sand back to clean bare timber; check with the finish manufacturer.
Does polyurethane make oak look yellow?
Solvent-based polyurethanes tend to add a warm amber tone that deepens with age. Water-based polyurethanes are much clearer and stay closer to the natural oak colour. Ask for samples on the actual timber.
Which finish is best for a kitchen with oak floors?
Many people choose a water-based polyurethane in kitchens for its spill resistance, but a well-maintained hardwax oil also works and is easier to spot-repair. Wipe spills quickly whichever you choose.
Is an oiled floor more slippery than polyurethane?
Not necessarily. Slip resistance depends on the specific product and sheen. Where a rating is required, such as on stairs, choose a finish with test results that meet the required classification.
Can I use furniture polish or wax on a polyurethane floor?
No. Polishes and waxes leave a film that makes floors slippery and stops a future recoat from bonding. Use only the cleaning and maintenance products the finish maker recommends.