AAA Quarter sawn wood or nearly so.
AA Wood that is quartered to one edge, (where the centre joint of the back will be ), gradually straying from the quarter ending up slab sawn at the opposite edge.
A Wood that is slab sawn, the main slab sawn area being approximately half way across the board.
* - One or more asterisks may be added to the grade mark to indicate wood that is aesthetically more pleasing or desirable by virtue of colour, intensity of figure or fineness of grain.
Back and sides sets are pre matched for colour and character.
Back and sides sets frequently are different grades for the back and the sides e.g. AAA sides and AA back. The valuation of these sets assumes the back and the sides each represent 50% of the value of a set and are then added together.