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Pietra Grey Marble Slabs & Tiles: Specification Guide for Architects & Stone Fabricators

Pietra Grey Marble Slabs & Tiles: Specification Guide for Architects & Stone Fabricators

Introduction: Why Accurate Specifications Matter for Pietra Grey Marble

Pietra Grey Marble is one of the most widely specified grey marbles in modern commercial and luxury residential projects. Its uniform charcoal base, fine white veining, and high-density structure make it a preferred material for hotels, retail stores, office lobbies, restaurants, and upscale homes.

But for architects and fabricators, the key to a successful installation starts with one thing:

Accurate slab, tile, and finishing specifications.

This guide provides complete, professional-grade specifications for Pietra Grey Marble — ideal for drawings, BOQ preparation, tender documents, and fabrication planning.

1. Pietra Grey Marble — Standard Slab Specifications

Available Slab Types

  • Big slabs (Gang-saw cut)

  • Small slabs

  • Book-match slabs (available upon request)

Standard Slab Dimensions

Slab Type Dimensions (W × H) Thickness
Big Slabs 2400–2900 × 1400–1800 mm 18 mm / 20 mm
Premium Large Slabs up to 3100 × 1900 mm 20 mm
Small Slabs 1800–2400 × 1200–1500 mm 18 mm

Note: Slab size varies depending on blocks harvested at the time. Clients can request current slab photos.

Surface Finishes

  • Polished (high gloss, ideal for interiors)

  • Honed (recommended for bathrooms & low-glare environments)

  • Brushed / Leathered (textured, modern finish)

  • Sandblasted + Brushed (anti-slip surface)

2. Pietra Grey Marble Tile Specifications

Popular Tile Sizes (Cut-to-Size)

Tile Size Thickness Applications
300 × 600 mm 15 mm Walls, bathrooms
600 × 600 mm 15/20 mm Flooring
600 × 1200 mm 20 mm Large-format floors/walls
800 × 800 mm 20 mm Hotel lobbies
Custom sizes 15/20 mm Tailored projects

Thickness Options

  • 15 mm – interior walls and standard flooring

  • 18 mm – high-traffic commercial flooring

  • 20 mm – heavy-duty and premium flooring

3. Pietra Grey — Technical Performance Specifications

Below are typical values (can vary depending on quarry batch):

Property Value
Water Absorption ≤ 0.35%
Density ~ 2,700 kg/m³
Compressive Strength ~ 120 MPa
Flexural Strength ~ 13 MPa
Abrasion Resistance High (suitable for commercial traffic)

These properties make Pietra Grey ideal for:

  • Hotel & office floors

  • Bathroom walls and countertops

  • Lobby wall cladding

  • Retail interiors

4. Tolerances & Fabrication Notes

Dimensional Tolerances

  • Thickness tolerance: ±1 mm

  • Length/width tolerance: ±1–2 mm

  • Surface flatness: within 0.5 mm

Fabrication Recommendations

  • Use waterjet cutting for precision edges.

  • Apply proper sealing before and after installation.

  • For shower areas: choose honed finish to prevent slipperiness.

5. Packing & Export Specifications

Slab Packing

  • Wooden bundles with fumigation certificate

  • Foam sheets between slabs

  • Metal straps for stability

Tile Packing

  • Cartons + wooden crates

  • 8–12 pieces per carton (depends on size)

  • Waterproof lining for export

6. Applications — Where Architects Prefer Pietra Grey

Commercial Spaces

  • Shopping malls

  • Retail boutiques

  • Hotel lobbies

  • Corporate headquarters

Luxury Residential

  • Floor tiles

  • Feature walls

  • Kitchen islands

  • Bathroom vanities

Strong, Technical & Business-Oriented

Contact download the full technical specification sheet (density, strength, slab yield, tolerances) or send your drawings for cut-to-size pricing.
We respond to architects, contractors, and developers within 12 hours.

Post time: Dec-02-2025