All RYNO porcelain and concrete paving options require one pedestal at each corner of the slab. A central pedestal is not required.
However, this may not apply to all third-party porcelain tiles. The strength and suitability of porcelain tiles for pedestal-supported applications can vary depending on how they are manufactured. Some tiles have deep profiles or indentations on the underside, designed to improve adhesion in traditional bedded installations. These can reduce the tile’s strength when supported only at its corners.
If using paving that has not been supplied by RNYO, we recommend checking with the paving manufacturer that it is suitable for use on a raised pedestal system and whether any additional support is required.