Technical Specifications
Standard sizes, tolerances, finishes, thicknesses, calibration, QA and packaging for marble/stone.
Standard sizes
Slabs
- Typical raw slab 1.6–2.1 × 2.6–3.2 m (varies by quarry)
- Polished/Honed slabs on A-frames, book-matched on request
- Calibrated thickness: 20 ±0.8 mm, 30 ±1.0 mm
- Jumbo slabs: up to 3.0 × 2.0 m
Cut-to-size / Tiles
- 300×300, 300×600, 400×400, 600×600 mm
- Custom sizes: waterjet/bridge cut per drawing
- Edge options: sawn, eased, chamfered, bevel
- Mosaic tiles: 10×10 cm
Thickness & calibration
- Tiles: 10, 12, 15, 18, 20 mm (project-dependent)
- Slabs: 20 mm (most common), 30 mm, 40 mm
- Calibration tolerance (tile): ±0.8 mm up to 600×600; larger formats ±1.0 mm
- Flatness (warpage/bow): ≤1.0 mm per 300 mm edge
- Custom thickness available on request
Surface finishes
- Polished – high gloss, low porosity at surface
- Honed – matte/satin
- Brushed/Antique – textured, slip-friendlier
- Leather – subtle texture with low sheen
- Sandblasted or Bush-hammered – exterior/anti-slip layers (often with honed top)
- Edges: bullnose, bevel, miter; sink/cutouts per CAD
- Flamed finish for outdoor use
Dimensional tolerances
| Metric | Value |
|---|---|
| Length/Width (≤600 mm) | ±0.5 mm |
| Length/Width (>600 mm) | ±1.0 mm |
| Thickness (tile) | ±0.8 mm (≤600 mm); ±1.0 mm (large) |
| Edge squareness | ≤1.0 mm per 600 mm |
| Rectangularity / orthogonality | ≤0.5% of side |
| Flatness (face) | ≤0.5% of side, max 2 mm |
| Diagonal difference | ≤2.0 mm |
Values align with common project specs and EN/ASTM practices; quarry/stone variability may require job-specific limits.
QA & testing (typical)
- ASTM C97 water absorption & density | EN 13755
- ASTM C170 compressive strength | EN 1926
- ASTM C99 modulus of rupture | EN 12372
- Slip resistance: DIN 51130 / Pendulum TRL (on finished surface)
- Color/vein variation is natural; lots are matched per order with photo approval
- Final QC: thickness gauge, diagonals, edge chips, surface finish, resin/mesh integrity
- Abrasion resistance testing
Packaging
- Tiles: export wooden crates, interleaf, nylon wrap, desiccants, corner protectors
- Slabs: A-frames or wooden crates; foam interleaf; steel strapping
- Labels: item code, size, thickness, finish, lot/batch, net/gross weight
- Moisture control for long ocean routes
- Custom labeling for branding
Installation & care (brief)
- Dry-fit and sort by shade/vein before setting
- Use suitable adhesives/mortars for natural stone; white mortars for light stones
- Back-butter large formats; allow movement joints per EN/TCNA
- Seal where required; maintain with pH-neutral cleaners; avoid acids on calcite stones
- Exterior use depends on freeze-thaw, slip resistance and finish—confirm per project
- Regular maintenance guide available
For project-specific specs (thickness, finish, slip rating, testing), share drawings and use-case—our team will propose a compliant build-up.