A thick 4 mm European oak top layer on an 8-layer eucalyptus and birch core, 15 mm, in 1900 x 190 mm planks or 600 x 120 mm herringbone. Eight colours, 25 year residential warranty.
Royal 15/4mm Oak has our thickest oak top layer: 4 mm of European oak (Quercus robur) over an 8-layer cross-bonded eucalyptus and birch core. It comes in 1900 x 190 mm planks and in 600 x 120 mm herringbone blocks, all 15 mm thick.
The boards have a micro bevel and a matte, lightly wire-brushed finish, protected by EverGuard, developed with Teknos Treffert parquet lacquer (9 to 11 UV-cured coats). They join with tongue and groove, so they are either floated with a cross-linking PVA glue in the joints or fully trowel glued. It is ABCD grade, showing the natural knots, colour and character of real oak.
It is backed by our 25 year residential warranty.
| Range | Royal 15/4mm Oak |
| Brand | Royal Floors |
| Format | Engineered European oak, plank and herringbone |
| Board size | Planks 1900 x 190 mm; herringbone 600 x 120 mm |
| Thickness | 15 mm |
| Veneer | European oak (Quercus robur), 4 mm |
| Core | 8 layers of cross-bonded eucalyptus and birch |
| Finish | Matte, light wire-brushed; EverGuard UV-cured lacquer, 9 to 11 coats |
| Edge | Micro bevel |
| Grade | ABCD (natural standard grade) |
| Joining system | Tongue and groove: floating with PVA glue, or full trowel glue-down |
| Slip rating | P3 |
| Underfloor heating | Hydronic in-slab only: surface up to 27°C, max 60 W/m² |
| Box coverage | Planks 2.166 m² (6, 22 kg); herringbone 0.864 m² (12: 6 left, 6 right) |
| Warranty | 25 year residential; 5 year light commercial (see warranty guidelines) |
Every installation starts with a free measure at your home. We check the subfloor, test concrete and timber subfloors for moisture free of charge, and send your written quote within two working days of the measure. Our installation team then lays your new floor.
The manufacturer's installation guide for Royal 15/4MM Oak sets out the subfloor, expansion gap and laying requirements.
Book a free measure and quote, or if you are laying it yourself, read our advice for DIY installers.
Follow the care and maintenance guide for Royal 15/4MM Oak to keep your floor looking its best and to protect the warranty.
For general tips, read our floor care guide.
Product: 25 year residential; 5 year light commercial (see warranty guidelines), from the manufacturer.
Installation: our 2 year installation warranty covers the installation work we do.
See our warranty page for more about warranties.
It has our 25 year residential warranty, and 5 years for light commercial use. Royal Floors timber warranties are pro-rata: a claim in years 1 to 5 is covered at 100%, then 70% in years 6 to 10, 40% in years 11 to 15, 10% in years 16 to 20 and 5% after that (see the warranty guidelines). Our installation work is also covered by our 2 year installation warranty.
The board is 15 mm thick in total, and the top 4 mm is solid European oak, our thickest oak layer. The rest is an 8-layer eucalyptus and birch core that keeps the board stable.
Yes. Herringbone blocks are 600 x 120 mm, packed as 6 left and 6 right blocks per box.
Yes, over hydronic in-slab heating only, with the floor surface kept at or below 27°C and no more than 60 W/m².
Yes. Visit our Penrith, Campbelltown, Hornsby or Logan showroom, or book a free measure and quote and we will bring samples to your home.
Four showrooms across Sydney & Brisbane
