Alongside choosing between solid, engineered or parquet, and picking a species and colour, one decision that often gets less attention than it deserves is whether to buy wood flooring already finished, or as bare, untreated boards. Both are genuine options with real trade-offs, and the right choice depends more on your priorities for the project than on which is objectively "better."
What treated (prefinished) flooring actually means
Prefinished flooring arrives from the manufacturer with the finish already applied, most commonly a polyurethane lacquer with UV filtering built in to slow colour fading from sunlight. You can often request a different finish if the standard option doesn't suit your project, though the range of stock combinations is naturally wider than what's custom-available. Prefinished boards typically cost more upfront than untreated ones, but that cost partly offsets the professional sealing service you'd otherwise need to pay for separately once the floor's installed.
What untreated flooring offers instead
Untreated, or unfinished, boards are sold in their natural state, with no finish applied at all. This appeals to people who want full control over the final look rather than committing to a manufacturer's chosen finish before the boards are even in the room. The trade-off is time and labour: unfinished floors need sanding and finishing as a separate stage after installation, which extends the overall project and adds a further decision point, choosing and applying the right finish, that prefinished flooring skips entirely.
Comparing the two directly
| Consideration | Treated (prefinished) | Untreated (unfinished) |
|---|---|---|
| Upfront cost | Higher per board | Lower per board |
| Additional finishing needed | No, ready to install | Yes, sanding and finishing after fitting |
| Choice of final look | Limited to available stock finishes, though custom orders are possible | Full control over stain, sheen and finish type |
| Time to project completion | Faster, ready once installed | Slower, requires a separate finishing stage |
| Consistency across boards | Very consistent, factory-applied | Depends on quality of on-site application |
The range of treatments available for unfinished wood
If you go the untreated route, there's a wide range of ways to shape the final look once the boards are down. Wood floor staining is the most common choice for those wanting a specific colour, whether that's enhancing the wood's natural tone or shifting it to something noticeably different. Smoking and washing are more involved processes that also change the wood's colour and character, generally used for more distinctive or dramatic effects than straightforward staining achieves. Once colour is settled, texturing techniques like distressing, brushing or tumbling add physical character to the surface, useful for anyone after an aged or reclaimed-timber look rather than a smooth, uniform finish.
Choosing the final protective finish
Whichever route you take to the look you want, the floor still needs a protective finish once that look is achieved. Hard wax oil and lacquer are the two most common choices, and each suits different priorities: hard wax oil, currently a popular choice paired with brushed texturing for a natural, slightly aged appearance, penetrates the wood rather than sitting on top of it, while lacquer forms a tougher surface film better suited to high-traffic areas. Neither is the "correct" choice; it comes down to how the room's used and the look you're after.
Which option suits which kind of project
Prefinished flooring tends to suit projects on a tighter timeline, or where consistency across every board matters more than customisation, new-build properties and rental refurbishments are common examples. Unfinished flooring suits projects where the final look is a genuine priority worth the extra time, period property restorations, bespoke interior design projects, or simply owners who want to be involved in choosing every detail rather than picking from a pre-set range.
If you're deciding between the two, or you've gone with unfinished boards and now need wood floor sanding and finishing after installation, get in touch for a free, no-obligation quote and we'll talk through what suits your specific project.
Frequently asked questions
Is prefinished flooring always more expensive overall? The boards themselves usually cost more, but this is partly offset by not needing a separate professional sanding and finishing service afterwards, so the overall cost gap is often smaller than it first appears.
Can I choose a custom finish on prefinished boards? Often yes, many suppliers offer custom finish requests, though the range of ready-stock options is naturally wider and quicker to source than a bespoke order.
Does untreated flooring take much longer to complete a project? Yes, unfinished boards need sanding and finishing as a separate stage after installation, which adds time to the overall project compared with prefinished flooring that's ready once fitted.
What's the difference between staining and smoking or washing wood? Staining applies colour to the wood's surface, while smoking and washing are more involved processes that chemically or physically alter the wood's appearance, generally used for more dramatic or distinctive effects.
Is hard wax oil or lacquer better for a newly finished floor? Neither is universally better. Hard wax oil suits a natural, more matte look and is easier to spot-repair, while lacquer gives tougher, more consistent protection for high-traffic areas.
