Flooring Thickness Singapore: Complete Guide
Plank thickness is the specification most often used as shorthand for quality — and it is the one that tells you least about how a floor will actually perform. It matters, but for reasons quite different from the ones most people assume.
Quick Takeaways
- Total thickness measures the whole board — core, backing and wear layer combined
- A thick plank with a thin wear layer will show wear faster than a thinner plank with a thicker one
- Thickness matters most for door clearance, threshold heights and floor build-up
- Thicker rigid boards bridge minor subfloor irregularity slightly better than thin ones
Comparing thickness specs? Visit the Monli showroom at Tampines for advice or WhatsApp +65 8112 4866.
What Thickness Does and Doesn't Tell You
A 5mm plank and a 4mm plank differ by a millimetre of core material. That millimetre affects rigidity and how the board handles a slightly uneven subfloor. It says nothing about how long the surface will resist scuffing, which is entirely the wear layer's job.
This is why two floors quoted at the same thickness can perform very differently, and why thickness alone is a poor basis for comparing quotes. Ask for thickness and wear layer together, as separate figures.
Where Thickness Genuinely Matters: Height
Every millimetre of flooring plus underlay raises the finished floor level, and that has practical consequences. Internal doors may need trimming at the bottom. Thresholds between rooms need to accommodate the new height. Existing skirting sits slightly lower relative to the floor.
This matters most when installing over existing tiles, where the total build-up adds to an already raised surface. Kitchen appliances that slide under a counter are worth measuring specifically — a dishwasher that no longer fits its opening is an expensive surprise.
Thickness and Subfloor Tolerance
A thicker rigid board spans a small dip slightly better than a thin one, giving marginally more tolerance for imperfect subfloor preparation. This is a real but modest benefit — it should not be treated as a reason to skip levelling, because no plank thickness bridges a genuinely uneven substrate.
Choosing Sensibly
For most Singapore homes, thickness is a constraint to work within rather than a target to maximise. Establish what height your doors and thresholds can accommodate, then choose the best wear layer and core type available within that limit.
Singapore Flooring Thickness Cost Guide (S$)
| Thickness | Typical Use | Price Range |
|---|---|---|
| 2–3mm (glue-down) | Minimal build-up needed | From S$6/sqm |
| 4–5mm (click) | Most residential | From S$7/sqm |
| 6mm and above | Higher tolerance, commercial | From S$11/sqm |
Prices are indicative. Contact Monli for a project-specific quote.
FAQs
Does thicker flooring mean better quality?
Not necessarily. Thickness measures the whole board; the wear layer determines how long the surface lasts, and they're separate specifications.
Why does flooring thickness matter then?
Mainly for height — door clearance, thresholds and appliance openings all have to accommodate the finished floor level.
Will my doors still close after installation?
They may need trimming. Measure the gap under each internal door before ordering so trimming can be planned rather than discovered.
Does thickness help with an uneven subfloor?
Marginally — a thicker rigid board spans a small dip slightly better. It's not a substitute for proper levelling.
What thickness suits most Singapore homes?
4-5mm click-lock covers most residential situations, though the right answer depends on your door and threshold clearances.
What should I check before ordering a thicker floor?
Door bottoms, thresholds between rooms, and the openings for any built-in appliances that slide under a counter.
Related Reading
- Vinyl Flooring Wear Layer Singapore: Guide
- Installing Flooring Over Existing Tiles Singapore
- Flooring Core Types Singapore: SPC, WPC & LVT
Visit the Monli showroom at Tampines to compare thickness options.
WhatsApp +65 8112 4866 for advice.
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