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Discover the dynamic beauty of natural stone with Karndean Knight Tile River Marble ST31, a stunning marble stone tile flooring that captures the...
Discover the dynamic beauty of natural stone with Karndean Knight Tile River Marble ST31, a stunning marble stone tile flooring that captures the distinctive character of grey river marble with flowing veining and organic movement. This luxurious stone effect flooring delivers the timeless appeal of premium marble with dramatic veining patterns reminiscent of natural waterways and geological formations, all at entry-range prices that make statement marble aesthetics accessible for any project. The ST31 River Marble features a sophisticated grey colour palette with striking darker veining that flows organically across each tile, creating the impression of water currents, river patterns, and natural marble formed over millennia. The prominent veining adds visual drama and movement, making this a bolder choice than subtle marble designs whilst maintaining sophisticated elegance. The grey tones range from soft mid-grey backgrounds to deeper charcoal veining, creating contrast and depth that brings floors to life. This versatile design suits contemporary, transitional, and classic interiors where statement marble flooring creates impact and luxury. As part of the Knight Tile collection's 66 SKU range, River Marble ST31 exemplifies Karndean's commitment to delivering distinctive natural stone aesthetics with dramatic veining at the most affordable price point in their portfolio.
Key Features:
Ideal For:
River Marble ST31 is the perfect flooring solution for spaces seeking statement marble aesthetics with dramatic veining and visual impact. The grey river marble brings sophisticated luxury to residential and commercial interiors.
Residential Applications:
Transform your home with the dramatic sophistication of river marble flooring that brings statement stone aesthetics without the expense, fragility, or maintenance of natural marble. River Marble ST31 excels in bathrooms where its bold veining creates luxurious spa-like environments with visual drama. The flowing veining adds movement and interest to bathroom floors, particularly effective in larger master ensuites and family bathrooms where the pattern has space to develop. The grey tones work beautifully with chrome, matte black, or brushed brass fixtures. Perfect for contemporary bathrooms seeking impact beyond plain white marble. In hallways and entrance areas, the dramatic veining makes powerful first impressions that immediately communicate quality and sophistication. The flowing patterns guide the eye through transitional spaces whilst standing up to high traffic. Living rooms and open-plan spaces gain luxurious foundations through statement marble flooring. The grey tones provide sophisticated neutrality that allows furniture and décor to shine whilst the veining adds essential visual interest preventing monotony. In kitchens, the waterproof river marble provides practical, stunning surfaces that handle spills effortlessly whilst creating upscale aesthetics. The darker veining helps disguise minor marks between cleaning. Dining rooms achieve formal elegance with the dramatic marble suggesting refinement and quality - perfect for entertaining. Home offices gain professional sophistication with luxury marble aesthetics. The flowing veining adds organic interest to work environments. Utility rooms and boot rooms benefit from practical waterproof marble that brings unexpected luxury to service spaces. The Knight Tile collection's entry-range pricing makes statement river marble achievable throughout homes at costs far below genuine marble whilst avoiding the porosity, etching, and staining issues that plague natural stone.
Commercial Applications:
Knight Tile River Marble ST31 delivers high-impact marble aesthetics at entry-level prices, making it ideal for budget-conscious commercial projects seeking luxury stone appearance. Perfect for boutique hotels, upscale hospitality venues, and quality accommodation where river marble creates distinguished, luxurious environments that enhance guest experience and property perception. The dramatic veining makes memorable first impressions in reception areas, entrance halls, and public spaces. Excellent for upscale care homes and assisted living facilities where the sophisticated marble brings residential luxury aesthetics whilst the easy-clean, hygienic surface meets practical requirements. The statement flooring creates quality environments that residents and families appreciate. Corporate offices, law firms, and professional practices benefit from the sophisticated marble that communicates success, stability, and quality to clients. Reception areas and entrance halls make powerful first impressions with dramatic veining. Retail boutiques, jewelry stores, and luxury goods retailers gain appropriate upscale backdrops that reinforce premium positioning. The grey marble suggests quality and sophistication. High-end restaurants, bars, and hospitality venues achieve luxury aesthetics with practical easy-care flooring. Showrooms benefit from the sophisticated neutral marble that creates quality environments without competing with products. Spas, wellness centers, and beauty salons gain luxury stone aesthetics that create premium experiences. Medical consulting rooms and private healthcare facilities achieve professional sophistication. The 10-year commercial warranty provides confidence whilst entry-range pricing makes luxury marble accessible across commercial installations.
Technical Excellence:
Karndean Knight Tile River Marble ST31 features advanced construction technology that delivers authentic dramatic marble aesthetics with superior practical performance. The K-Guard+ surface protection combines PU technology to create a hygienic, highly durable finish that resists everyday wear whilst remaining incredibly easy to clean - simply sweep and mop, no sealing, polishing, or marble maintenance required. Unlike porous natural marble prone to etching from acidic substances and staining from oils and spills, ST31 repels everything effortlessly. The 0.3mm wear layer provides excellent protection against everyday wear and tear, scratches, and scuffs, making it suitable for residential applications and moderate commercial traffic environments. Beneath the wear layer, a high-definition photographic layer captures every nuance of river marble, including the sophisticated grey background tones, the dramatic darker charcoal veining that flows organically across tiles, the natural variation in vein intensity and pattern, and the characteristic movement that creates the river marble effect. The veining flows naturally across tiles, and careful installation allows patterns to develop organically creating authentic marble floor aesthetics. Engineered stability layers are designed to minimize expansion and contraction, ensuring dimensional stability across temperature changes and making the floor compatible with underfloor heating systems up to 27°C - adding warmth to the cool marble aesthetic. The heavy-duty PVC backing layer provides excellent indentation resistance and recovery, protecting against furniture marks and heavy objects. The 2.0mm total thickness makes River Marble ST31 ideal for both renovation projects where it can be installed over existing hard floors, and new build applications where its slim profile doesn't affect door clearances. The non-bevelled edges create seamless tile-to-tile transitions allowing the veining patterns to flow naturally across the floor without interruption.
Installation & Maintenance:
Karndean Knight Tile River Marble ST31 requires professional glue-down installation, with careful attention to tile orientation to maximize the flowing effect of the dramatic veining. Professional installers will arrange tiles to create organic, natural-looking veining patterns that flow across the floor rather than creating artificial-looking repetition. The rectangular 305mm x 457mm tiles can be installed in various patterns including straight lay for contemporary grid appearance where the veining creates organic interest against geometric layout. Offset/brick pattern installation staggers each row by half the tile length for more organic marble appearance with gentle movement and less geometric precision.
For authentic grouted marble tile effects, add Karndean Design Strips in 3mm or 5mm widths between tiles. DS22 Graphite creates dramatic dark grout that complements the darker veining and provides strong definition - particularly effective with grey marble. DS12 Concrete provides mid-grey grout for softer contrast. DS10 Chalk offers lighter grey grout. DS21 White Linen creates pale grout maintaining lighter overall tones. The 3mm width creates subtle grout lines whilst 5mm provides more prominent traditional grouting effects.
Tiles can be cut precisely to fit around fixtures, vanities, kitchen islands, and irregular room shapes. The dramatic veining makes this design particularly effective in larger open areas where the patterns have space to develop and create impact. In smaller spaces, the bold veining adds visual interest without overwhelming.
Combine ST31 with other Knight Tile designs for custom installations. Use river marble in feature areas like bathrooms or hallways with coordinating wood planks or less dramatic stone tiles in adjacent spaces. The sophisticated grey coordinates beautifully with both warm and cool wood tones.
The gluedown installation means no expansion gaps are required - tiles fit tight against walls, skirting boards, and fixtures for professional, seamless finishes. River Marble ST31 is fully compatible with underfloor heating systems up to 27°C, adding warmth underfoot whilst maintaining the luxurious marble aesthetic.
Maintenance is remarkably simple compared to natural marble. The K-Guard+ surface treatment means ST31 requires only regular sweeping and mopping with Karndean Clean to maintain its pristine dramatic appearance. Unlike natural marble requiring sealing upon installation, regular resealing, constant vigilance against acidic spills that cause etching (wine, lemon juice, cleaning products), and anxiety about staining from oils and colored liquids, River Marble ST31 is completely waterproof and stain-resistant from day one. There's no sealing, no special marble cleaners, no polishing, no worry about damage - complete peace of mind. The individual tile format means that should any tile become damaged, it can be replaced without disturbing the surrounding floor. The gluedown format is ideal for renovation projects.
Design Inspiration:
River Marble ST31's dramatic grey veining opens up exciting design possibilities across contemporary and transitional interior styles.
Contemporary Statement Bathrooms: Create luxurious spa-like bathrooms using river marble as bold foundation. The flowing veining adds movement and visual drama to bathroom floors. Pair with freestanding tubs, walk-in showers, and quality fixtures for upscale contemporary spa aesthetics. The grey tones suit both chrome and matte black fixtures.
Dramatic Entrance Halls: Make powerful first impressions with river marble in entrance areas and hallways. The flowing veining guides visitors through transitional spaces whilst immediately communicating quality and sophistication. Perfect for creating "wow factor" arrivals.
Contemporary Living Spaces: Use river marble in living rooms and open-plan areas for luxurious foundations with visual interest. The dramatic veining prevents the monotony of plain floors whilst the grey tones provide sophisticated neutrality that works with diverse furniture styles.
Upscale Kitchen Floors: Create luxury kitchen environments with practical waterproof marble. The darker veining helps disguise inevitable kitchen marks whilst the sophisticated grey suits both traditional and contemporary kitchen cabinetry. Particularly effective in larger kitchens where the pattern can develop.
Feature Zones: Use river marble to define specific high-impact zones within larger spaces. Create marble entrance areas, bathroom floors, or feature sections in open-plan layouts whilst using less dramatic flooring elsewhere for cost-effective installations that maximize visual impact.
Monochromatic Grey Schemes: Embrace sophisticated grey interiors where river marble provides dramatic textured foundation. Combine with various grey tones in walls, furniture, and textiles for layered monochromatic sophistication with natural stone character adding essential organic interest.
Design Strip Drama: Add dark DS22 Graphite Design Strips between river marble tiles for maximum drama and definition. The dark grout emphasizes individual tiles and creates strong geometric grid patterns that contrast beautifully with organic flowing veining.
Mixed Material Luxury: Combine River Marble ST31 with Knight Tile wood planks for sophisticated luxury zoning. Use marble in wet areas, entrances, or formal spaces with wood in living areas for varied materials that share sophisticated neutral palettes.
Gallery-Style Display: Create clean, dramatic backgrounds for art and collections using river marble. The grey neutrality allows pieces to shine whilst the veining adds sufficient interest to prevent bland backgrounds.
Style Compatibility:
Contemporary Luxury: Modern upscale interiors benefit from dramatic river marble bringing statement stone aesthetics with flowing organic patterns.
Transitional Elegance: Bridge traditional marble luxury with contemporary sensibility through grey tones and dramatic veining that works with both classic and modern furnishings.
Industrial-Luxe: Urban-contemporary spaces seeking sophisticated industrial aesthetics pair grey marble with exposed elements, metal fixtures, and quality materials.
Modern Classic: Contemporary interpretations of classic elegance use dramatic marble as luxurious foundation for quality interiors that respect traditional luxury whilst embracing modern design.
Spa-Inspired Luxury: Home spa aesthetics benefit from river marble creating serene luxury environments with natural stone beauty and flowing organic patterns.
Contemporary Professional: Corporate and professional spaces gain sophisticated credibility through luxury marble that communicates success and quality.
Why Choose Knight Tile River Marble ST31:
Widest Selection in Entry Range: As part of the 66-SKU Knight Tile collection, you have unmatched choice at affordable prices, with wood and stone designs to suit every space and style.
Dramatic Statement Veining: Bold flowing veining creates visual impact and movement - perfect for spaces seeking statement flooring rather than subtle backgrounds.
Sophisticated Grey Palette: Contemporary grey tones suit modern interiors whilst maintaining timeless marble luxury. More versatile than white marble, more sophisticated than darker stones.
Natural River Patterns: The flowing veining evokes natural water formations and geological patterns, bringing organic movement and authentic natural stone character.
Authentic Marble Character: High-definition photographic layer captures real river marble with dramatic veining, natural variation, and flowing patterns that develop organically across floors.
100% Waterproof: Unlike porous natural marble, ST31 is completely waterproof with no sealing required - revolutionary for marble aesthetics in bathrooms, kitchens, and wet areas.
No Etching or Staining: Natural marble etches from acids and stains from oils - ST31 is completely resistant to all household substances, maintaining pristine appearance permanently.
Warmer Than Natural Marble: More comfortable underfoot than cold natural stone, with compatibility for underfloor heating to add warmth whilst maintaining luxurious aesthetic.
Easy Maintenance: Simply sweep and mop - no sealing, no polishing, no special marble cleaners, no anxiety about damage from everyday substances.
Affordable Statement Luxury: Entry-range pricing brings dramatic river marble aesthetics at fraction of natural stone costs whilst delivering superior practical performance.
Durable Performance: 0.3mm wear layer and K-Guard+ protection provide excellent durability backed by 15-year residential and 10-year commercial warranty.
Perfect for Renovations: 2.0mm thickness installs easily over existing hard floors - add luxury marble drama to tired spaces without removal costs.
Individual Tile Replacement: Should any tile become damaged, individual replacement possible without disturbing surrounding floor.
Design Flexibility: Gluedown installation allows custom patterns, Design Strip integration for dramatic grout effects, and combination with other Knight Tile designs.
Budget-Conscious Luxury: Ideal for boutique hotels, upscale care homes, offices, retail spaces, restaurants, and residential projects requiring marble luxury at controlled costs.
Quieter Underfoot: Softer acoustic properties than hard natural marble create more comfortable sound environments.
Hygienic Surface: Won't harbour bacteria or dirt in porous surface like natural marble. Essential for bathrooms, kitchens, and commercial environments.
Visual Interest: The dramatic veining prevents monotony in larger spaces, adding essential visual movement and organic patterns that keep floors interesting.
Versatile Neutral: The grey palette coordinates with both warm and cool accent colors, providing flexible foundation that adapts as design preferences evolve.
Professional Installation Advantage: Lighter than natural marble, easier to handle, quicker to install, and doesn't require specialized stone installation skills or structural subfloor preparation.
Trusted Karndean Quality: Over 50 years of flooring expertise means you're choosing a brand known for authentic stone designs, practical innovation, and customer satisfaction.
Karndean Knight Tile River Marble ST31 proves that dramatic marble sophistication with flowing river veining and statement grey tones doesn't require expensive natural stone, ongoing sealing, or fragile surfaces prone to etching and staining. With bold veining patterns, sophisticated grey palette, practical waterproof performance, and entry-range pricing, it's the smart choice for anyone seeking luxurious marble impact with all the benefits of modern luxury vinyl technology.
