The adjectival grade. This gives an overall picture of the route including how well protected it is, how sustained and an indication of the level of difficulty of the whole route.
The technical grade. This refers to the difficulty of the hardest single move, or short section, on a route.
The quality grade. In order to highlight the better quality climbs on the Island, a system of starring has been used, with the higher quality routes thought to be of some significance nationally.