Grading

5A – Great top hard to fault acoustically or aesthetically

4A – Supurb top allowing slight off-quarter at outer edges & other slight anomalies

AAA – Excellent top allowing some noticable imperfections or character

AA – Fine top allowing minor runout, quarter drift, grain to 8 rings/inch, some color

A – Good top allowing normal range of Red Spruce character including more flex & hard late grain

B – Servicable production grade top where budget is primary consideration

Sizes

Full – 8″ x 22″ or larger for Dreadnought or Jumbo

Mid – 7.5″ x 20″ or larger for OM, Classic

Small – 6.5″ x 19″ or larger for O, etc.

Parlor – 6.2″ x 18.5″ or similar for Parlor, etc

Arch Mandola .8-.3 x 6.2 x 16″ wedges

Arch Mandolin – 7/8 – 3/8 x 5.5 x 15″ wedges

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