15mm Engineered Wood Flooring
15mm is the premium-tier engineered wood thickness — slightly more substantial than the 14mm standard, with a thicker oak wear layer in many ranges and a more solid feel underfoot. It is the specification we typically recommend for whole-house projects where the floor is being treated as a long-term investment and the extra millimetre of build-up is not a problem.
15mm is widely available across GF by Grosvenor Flooring and V4 Wood Flooring, including most of the wide-board plank ranges in V4 Alpine and V4 Heritage.
When to Specify 15mm
Step up from 14mm when you want a thicker wear layer, a more substantial board feel and an additional sanding cycle’s worth of refinishability. Step down from 20mm when build-up height matters but you still want a premium-tier floor.
Construction & UFH
Multi-ply core, real European oak wear layer (typically 4mm), full UFH compatibility (max 27°C).
Where to Use 15mm Engineered Wood
Any dry room — most often whole-house projects spanning lounges, kitchens and dining rooms.
Explore Related Categories
- Other thicknesses: 9mm, 10mm, 11mm, 14mm or 20mm.
- By format: plank, herringbone or parquet.
- Brands: GF own-brand or V4 Wood Flooring.
How to Buy or Get a Quote
For GF: full online checkout, free samples and UK delivery. For V4: Request a Price via our enquiry form, WhatsApp or phone.
Frequently Asked Questions
Why is 15mm the most popular engineered wood thickness?
It's the sweet spot: thick enough to feel like solid timber underfoot, stable enough to work over underfloor heating, and almost always supplied with a 3–4mm wear layer that can be sanded two or even three times over its life.
How many times can a 15mm engineered floor be sanded?
Typically two to three times, depending on the wear layer thickness (most 15mm boards have 3–4mm of real oak on top). That's 60+ years of life with normal domestic use.
Does 15mm work with underfloor heating?
Yes, 15mm boards are compatible with modern low-temperature UFH systems. Always confirm the individual product's UFH approval and follow installation guidance on subfloor temperature and moisture.
