Suitable foundations should be established to accept feature stone prior to placement.
Where specified, feature stones have a flat cut base, however, this does not imply stability. In all cases care should be taken to establish suitable foundations to ensure stability during initial placement and in the long-term.
The weight and irregular shape of stones may make placement unpredictable. Care should be taken to ensure that all personnel are kept at a safe distance from moving equipment, and clear of the potential of toppling of the stone being placed.
Whilst feature stones are selected to be "sound" movements may cause stones to crack without warning . Care should be taken to keep a safe distance from stones during placement.
Particular care should be taken with regard to the stability of stones intended as water features. In particular to the location and suitability of water reservoirs with regard to maintenance and long term stability.