Yes, sequoia is a hardwood!
Soft wood...
full-grown sequoia contains enough wood to build thirty houses
Pine is a soft wood.
a soft wood
Sequoia and Redwood trees are both very tall trees.
Sequoia is the scientific name for the redwood tree (Sequoia sempervirens), a tall conifer with reddish wood, although any tree having a reddish wood may be referred to as a redwood.
They are made of Seqouia wood!
mainly soft wood
some wood can be soft but most wood is hard
soft
is larch wood soft or hard wood