Onyx Grigio Elite Wall Panel
£480.00
Tax included.
Shipping calculated at checkout.
Special order item: 3-5 days
Quantity
Onyx Grigio is an intense marble decor built around an intricate pattern of dark-grey veining running through a mixture of light and dark greys, for a genuinely dramatic, statement finish. The Polished finish adds extra depth and shine, making the veining stand out even more against the light. Like every panel in the Elite Collection, it's fitted with tongue and groove joints and sleek post-formed edges for a completely seamless finish — no grout, no sealant lines breaking up the pattern, just one continuous surface from floor to ceiling.
100% waterproof
No grout
Tongue & groove seamless finish
Lifetime guarantee*
Where this works
- Full wet room wall coverage — panels can extend beyond the bath/shower area for a co-ordinated look
- Can be cut and combined to form custom waterproof windowsills and shower niches
- Not designed to carry the weight of taps, shelving, or fittings — these must be fixed through the panel into the wall structure
Install time
~2.5 hrs (full surround)
Joints
Tongue & groove, trim-free
Required adhesive/sealant
Wilsonart Complete Adhesive & Sealant
Part of the Elite Collection. Browse more Marble finishes, or see the full Wetwall range comparison.
Panel Specification
| Material / Core | Solid waterproof core (composite substrate, HPL décor face) |
| Panel Thickness | 10mm |
| Finish | Polished |
| Colour | Light and dark grey marble, dark-grey veining |
| Weight | 25.4kg (1200mm panel) |
| Fire Reaction Classification | Euro Class E (EN 438-7:2005) |
| Formaldehyde Release | E1 |
| Waterproof | 100% waterproof (per installation guidance) |
| Wall or Floor | Wall only |
| Suitable Substrates | Plaster, plasterboard, cement, fibreboard, particleboard/MDF/OSB; existing ceramic tile (cleaned & keyed first) |
| Guarantee | Lifetime guarantee (when installed with Wilsonart Complete Adhesive & Sealant) |
Special order deliveries and returns
Elite Collection — Details
Panel edge profiles, sizes, and standard installation layouts — the same across every Elite decor.
Edge Profiles
Post-formed + Tongue Edge
Features one finished radius edge and one tongue edge to link to T&G panels
Tongue & Groove Edge
Used to continue a design beyond a single-panel width
Post-formed + Tongue Edge (Finishing Panel)
Finishes a run of T&G panels with a neat post-formed detail; can also be used as an upstand
Post-formed Edge, Both Sides
Two pre-finished edges — ideal for short returns and use behind WCs and wash basins
Wall Panels
2420 × 1200mm
Post-formed + Tongue
2420 × 1200mm
Tongue & Groove
2420 × 600mm
Tongue & Groove
2420 × 580mm
Post-formed, Both Edges
2420 × 160mm
Post-formed + Tongue (Finishing Panel)
Standard Layouts
2-Sided Layout
3-Sided Layout
2-Sided Shower, Wide
Shower/Bath Combination
You'll Also Need
Everything you need to finish this panel installation
