Porphyry plattens from CED Stone are naturally smooth, flat boulders in purplish brown and bluish grey, made from moraine boulders tumbled in alpine rivers. Suitable for stepping stones, flatter rockery arrangements, or Japanese garden styles, they are generally slab-like and lower in height than typical granite boulders.

  • Flat, smooth natural stone boulders for landscaping

  • Distinctive purplish brown and bluish grey colours

  • Made from moraine boulders shaped by alpine rivers

  • Ideal for creating level surfaces in gardens and water features

  • Lower profile than standard granite boulders

  • Suitable for use in Japanese garden designs

Applications

  • Stepping stones across shallow ponds or streams

  • Dry river beds in landscape projects

  • Flatter rockery arrangements

  • Japanese garden features

  • Set in gravel for decorative pathways

Dimensions

Approx 200–600mm

Colours

Purplish brown

Bluish grey

Materials

Natural porphyry moraine boulders

Finish

Smooth, flat surface from natural tumbling