OL Collection: "Onyx White Polished" 24” x 48” Premium Porcelain Slab

The "Liquid Alabaster" Luxury Aesthetic

While smaller tile sizes segment a space with frequent, interrupted joint lines, the OL (Overland) Onyx White Polished 24” x 48” Porcelain Tile by Elysium scales up the geometry to introduce a grand, luminous architectural continuity to high-end interiors. It represents the pinnacle of "Maximalist Elegance," "Warm European Glamour," and "Luminous Serenity." Inspired by rare, ultra-premium natural White Onyx—a gemstone celebrated since antiquity for its complex, semi-translucent internal layers—this series balances striking mineral architecture with a spectacular, light-reflective canvas.

The design presents an exquisite, milky-white and soft ivory foundation woven with faint, gossamer bands of soft silver-gray, pale cream cloud sedimentations, and delicate, icy crystallizations. Scaling this high-drama gemstone pattern up to a grand 24" x 48" format and finishing it with a mirror-sharp high-gloss factory polish allows the surface to behave like a solid sheet of liquid crystal. It bounces ambient room light to effortlessly expand room boundaries, creating a grand presence that highlights fine timber tones, brushed metal accents, and sophisticated structural layouts. It stands as an elite specification for palatial main floor plans, majestic floor-to-ceiling master suite shower walls, and high-impact fireplace feature surrounds.

Product Description

Introduce a bright, dream-like grandeur into your property blueprint with the OL Onyx White Polished 24" x 48" Large-Format Field Tile (Item Code: P4483). Sourced and distributed by Elysium, this premium fine porcelain stoneware balances delicate natural gemstone aesthetics with the unyielding technical durability of modern vitrified materials. Utilizing state-of-the-art digital inkjet glazing technology, it perfectly captures the deep mineral layers, soft tone-on-tone banding, and cloud-like visual depth of organic onyx without any of its structural vulnerabilities, staining concerns, scratching liabilities, or intensive chemical sealing requirements.

The OL Collection is precision-engineered featuring flawlessly Rectified Edges, enabling ultra-tight grout joints that minimize visible grid lines and create a virtually seamless stone horizon. Sourced at a substantial, heavy-duty architectural profile, it delivers outstanding structural stability, high impact resistance, and full compatibility with underfloor radiant heating elements. The glass-like glossy finish intensifies color saturation, causing the fine silver and cream layers to pop while providing a totally non-porous face that shrugs off water spots, household acids, and moisture entirely. Each box contains 2 pieces covering exactly 15.50 Sq. Ft. (7.75 Sq. Ft. per piece), joining together cleanly to showcase an incredibly fluid, continuous ribbon of luxury.

Key Features

• Exotic White Onyx Replication: Captures the multi-layered depth, cloud-like transitions, and fluid, crystalline bands of authentic white onyx stone using high-definition graphic detailing.

• Grand 24" x 48" Aspect Ratio: Follows the designer-favored "Golden Ratio," expanding spatial perspective while reducing standard grout joint monotony by up to 50% compared to square layouts.

• Mirror-Gloss Polished Finish: A state-of-the-art high-gloss factory glaze intensifies color depth, maximizing natural light reflection to brighten darker rooms.

• Flawless Rectified Edging: Cut to exact dimensions after firing, allowing for precise, ultra-thin grout joint layouts for an almost seamless appearance.

• High-Performance Porcelain Body: Completely non-porous body ensures zero moisture, oil, or acid absorption, making it safe for open-concept living floors, great rooms, and primary feature walls.

Specifications

Installation Requirements

⚠️ CRITICAL: RECTIFIED LEVELING & BRIGHT WHITE MORTAR MANDATE: Because flat, large-format 24" x 48" rectified porcelain tiles create an exceptionally flat, monolithic plane, your subfloor must be perfectly level before troweling mortar. You must utilize a high-performance, polymer-modified Large and Heavy Tile (LHT) Mortar to properly support the tile's weight and prevent "lippage" (uneven tile edges) as the thin-set cures. To protect the pristine clarity of the translucent-look white field, a Bright White LHT thin-set mortar is highly required. Using cheap gray mortar will bleed dark shadows right up through the tile, permanently turning your white onyx layout a dull, muddy gray. Furthermore, to manage the natural microscopic bowing inherent to all elongated porcelain tiles, installers should lay the tiles in a standard straight grid or a maximum 33% (1/3) offset running bond. Never lay these large rectangular slabs in a traditional 50% brick-joint pattern.

Professional Recommendations:

• The Face-Check Layout: Because the OL Onyx White features a highly realistic, expressive gemstone profile, installers must dry-lay several boxes across a flat surface prior to setting. Rotate and arrange the pieces fluidly to balance the path of the silver-gray bands across your layout for an optimal aesthetic.

• 100% Mortar Coverage (Back-Buttering): To guarantee an unbreakable permanent bond and ensure zero hollow air pockets beneath these heavy tiles, the installer must firmly "back-butter" the smooth back of every single tile with thin-set mortar alongside substrate troweling.

• Mechanical Leveling Spacer Systems: Take advantage of the sharp rectified edges by utilizing a mechanical leveling system (clips and wedges) during setting to secure an ultra-flat layout. Choosing a matching "Alabaster" or "Bright White" grout color allows the grid lines to seamlessly dissolve into a monolithic stone sheet.

Frequently Asked Questions

Is a large 24" x 24" polished porcelain tile safe for wet walk-in shower floors? While highly suited for main residential bathroom walls, grand entryways, fireplace surrounds, and open-concept floor spaces, a large-format polishedsurface can become slick when wet on a shower floor. For optimal slip-safety inside wet custom shower pans, we highly recommend pairing these polished walls with its coordinating matte mosaic options or utilizing it exclusively for shower walls and dry bathroom layouts.

How do I clean and maintain this high-gloss porcelain over time? Unlike natural onyx stone which is notoriously soft, brittle, highly porous, and easily scarred or etched by acidic cleaners, this vitrified porcelain tile is completely non-porous and chemically inert. It will never require routine sealing, re-polishing, or special stone waxes. Simply clean regular floors or walls with a soft microfiber mop or cloth and a basic pH-neutral household cleaner or simple water.

Pro Design Tips

• The Textural Finishes Mix: Use a high-end designer trick by pairing finishes within the same colorway. Install OL Onyx White Matte tiles across the bathroom floor for slip-safety, and run these matching OL Onyx White Polished24x48 slabs vertically up the shower walls. This keeps the color palette perfectly unified while creating a captivating contrast between liquid reflections and velvety matte surfaces.

• The Monolithic Grand Great Room: Run these polished slabs in a straight grid across your main open-concept living domain and continue the pattern straight up a prominent central fireplace mantel wall. Pair the luminous white and soft gray cloud tones with a floating natural light oak vanity or dark walnut elements, and warm champagne bronze hardware to achieve an ultra-clean, high-end European spa aesthetic.