Elevate transitions and edge details with the Thassos White Marble 1x12 Quarter Round Trim, offered in polished or honed finishes. Crafted to complement pure white marble surfaces, this quarter-round edge delivers a refined, seamless look that enhances any interior—from clean modern bathrooms to pristine kitchen backsplashes.

• 1x12 quarter-round profile provides a gentle, rounded edge that protects tile corners while delivering a smooth tactile finish along floors, walls, and shower surrounds.
• Two finish options — choose polished for a bright, reflective sheen or honed for a softer, satin-like matte appearance that pairs beautifully with matte tiles and contemporary fixtures.
• Grade A1 quality ensures consistent color with minimal variation, giving your project a cohesive look across all trim pieces.
• Natural marble durability— ideal for indoor use in bathrooms, kitchens, and entryways. Pair with a marble-safe sealer to maintain color clarity and guard against staining.
• Versatile styling— a timeless white backdrop that coordinates with other Thassos collections and white surfaces for a clean, cohesive design language.
• Installation-friendly— designed to work with standard marble thin-set mortars and grouts; seal after installation and follow care guidelines to preserve the marble’s luster.

Use cases and ideal applications

• Shower enclosures and tub surrounds where a crisp edge finish enhances waterproofing aesthetics while preventing chipping on tile edges.
• Kitchen backsplashes and island accents, delivering a polished border that mirrors the surrounding white marble for a monochrome, high-end look.
• Floor perimeter transitions and wall-to-tloor details that require a durable, visually lightweight edge rather than a heavy trim profile.

What makes this trim special is its combination of pure Thassos white marble, a precise 1x12 footprint, and the choice between polished and honed surfaces. This trifecta creates a consistent, bright white edge with luxurious depth—without introducing busy veining or color shifts that can distract from a minimalist design. In short, it’s the subtle touch that elevates your tile work from finished to gallery-worthy.

Care and maintenance tips — protect the finish with a penetrating marble sealer after installation and re-seal as recommended. Clean with pH-neutral marble cleaners; avoid acidic or abrasive products that can etch or dull the surface. With proper care, the Thassos White Marble trim maintains its pristine glow for years.

Ready to complete your marble look with a flawless, edge-to-edge finish? Add the Thassos White Marble 1x12 Quarter Round Trim (A1) to your cart and experience the quiet luxury of true white marble in a practical trim profile.