Soft maple, (genus: Acer) is not a distinct species of maple (see hard maple). It is a commercial lumber term used to distinguish between hard maple and other types of maple.
Soft maple is commonly found in temperate regions of North America.
Janka Hardness :
4,230 N (700 to 950 lbf) depending on species
Average Dried Weight:
485 to 610 kg/m3 (30.2 to 38.0 lbs/ft3) depending on species