Curly maple, also called fiddleback, maple, tiger maple, flamed maple, and ripple maple (genus: Acer) is not a distinct species of maple (see hard maple). It is considered a grain pattern and is found in most Acer species.
Janka Hardness :
6,450 N (700 to 1,450 lbf) depending on species
Average Dried Weight :
485 to 705 kg/m3 (30.2 to 44.0 lbs/ft3) depending on species