Product Overview
MSI Rockmount Glacial Grey Marble 6" x 18" x 6" Splitface Ledger Corner Panel Wall Tile is designed to create seamless, continuous 90-degree outside corners for ledger stone installations. Crafted from 100% genuine natural marble, each "L"-shaped corner unit features hand-split stone strips in an interlocking dry-stacked format that perfectly matches the Glacial Grey ledger panels.
The Glacial Grey colorway showcases a sophisticated palette of frosty ice-gray, soft silver, charcoal accents, and subtle crystalline white veining. Incorporating these pre-fabricated corner pieces eliminates exposed saw-cut stone edges on vertical wall transitions, columns, and fireplace wraps, ensuring a professional, mason-crafted finish.
Technical Specifications
| Technical Property |
Value / Specification |
Notes / Compliance |
| Brand / Collection |
MSI Rockmount Ledger Panels |
Genuine Natural Stone Wall Cladding |
| Material Type |
100% Genuine Natural Marble |
Splitface Architectural Stone |
| Corner Dimensions |
6" H x 18" L (Long Arm) x 6" L (Short Arm) |
Two-Piece Interlocking "L" Corner Set |
| Thickness |
Approx. 3/4 in. to 1-1/4 in. (19 mm – 32 mm) |
Dimensional Heavy Relief |
| Surface Finish |
Natural Cleft / Splitface |
Rough-Hewn Textured Finish |
| Color Profile |
Glacial Grey (Frosty Silver, Ice Gray & White Veining) |
Moderate Natural Stone Variation (V2-V3) |
| Edge Detail |
Interlocking "L" Corner Cut |
Fits Matching 6x24 Glacial Grey Panels |
| Recommended Applications |
90-Degree Outside Wall Corners, Columns, Fireplaces* |
Vertical Wall Locations Only |
*For exterior or high-moisture applications, confirm site-specific substrate load capacity, waterproofing, and natural stone setting requirements prior to installation.
Recommended Applications
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Fireplace Surrounds & Chimney Breasts: Creates clean, fully-wrapped 90-degree outside corners around fireplace boxes and protruding chimney breasts.
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Exterior Pillars & Building Columns: Wraps structural columns, entryway pillars, barbecue islands, and outdoor kitchen corners with authentic stone textures.
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Retaining Wall & Accent Wall Ends: Provides a clean masonry finish where accent walls terminate or turn 90-degree corners.
Installation & Handling Guidelines
⚠️ IMPORTANT: NATURAL STONE LEDGER CORNER INSTALLATION PROTOCOL
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Install Corners First: Always set your outside corner pieces first, staggering the long (18") and short (6") arms on alternating rows. Once corner pieces are set, work inward along the wall with standard 6" x 24" flat ledger panels.
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Substrate Load Capacity: Marble ledger panels are heavy natural stone (approx. 8–10 lbs per sq. ft.). Ensure wall substrates (concrete, cement backer board, or masonry) are securely fastened to studs and structurally rated to carry heavy vertical stone loads.
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Pure White LFT Mortar Required: Install using a high-performance, polymer-modified Large & Heavy Tile (LFT) pure white thin-set mortar (ANSI A118.4 / ANSI A118.15). White mortar prevents dark shadowing behind translucent marble pieces.
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Tight-Joint Installation (No Grout): Interlocking corner pieces butt tightly against flat panels without grout joints, preserving a continuous dry-stacked stone appearance.
Care & Maintenance
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Routine Cleaning: Dust or vacuum textured stone crevices using a soft brush attachment. Clean periodically with warm water and a neutral pH natural stone cleaner.
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Avoid Harsh Chemicals: Do not use acidic cleaners, vinegar, bleach, or high-pressure power washers at close range, which can etch natural marble.
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Periodic Resealing: Reapply a penetrating stone sealer every 2 to 4 years on exterior installations to protect against staining and freeze-thaw exposure.
Design Profile
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Aesthetic Inspiration: Modern Coastal, Nordic Minimalist, Urban Executive, Modern Mountain.
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Visual Advantage: Alternating the 18" and 6" corner legs wraps corners naturally, concealing joints and mimicking traditional full-bed stone masonry.
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Complementary Finishes: Pairs seamlessly with MSI Rockmount Glacial Grey 6x24 Flat Ledger Panels, white oak millwork, matte black hardware, and light marble flooring.
Frequently Asked Questions
How do corner pieces fit with standard 6" x 24" ledger panels?
Each corner piece features a 6" high profile with alternating 18" and 6" arms. When set on alternating rows, they lock directly into standard 6" x 24" flat ledger panels, continuing the pattern across flat walls seamlessly.
Why shouldn't I just cut flat 6" x 24" panels at a 45-degree miter for corners?
Mitered cuts expose smooth, untextured saw lines and internal stone grain. Pre-fabricated corner pieces maintain the natural splitface texture all the way around the 90-degree edge for an authentic stone look.
Do I need grout for corner installations?
No. Corner pieces are engineered to fit tightly against flat ledger panels without grout lines, maintaining a dry-stacked masonry appearance.
