Natural stone is not manufactured to the same tolerances as ceramic or concrete. A clear specification prevents disagreements.
Calibrated or natural
Calibrated products are cut or ground to a consistent thickness. Natural split products vary more and suit informal paving.
What to state
- Nominal length, width and thickness
- Allowed variation in millimetres
- Edge type: sawn, split or tumbled
- Surface finish
Samples help
Approve a sample before bulk production and keep it as the reference for the order.
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