American Hard Maple - The Real Deal
What can we
say? This is our smallest set
of blocks and gives the
beginning child their first
taste of Unit Blocks.
Rubberwood is a somewhat rougher
grained hardwood a bit like Ash
or Honey Maple in texture.
It is salvaged from aging trees
on Rubber Plantations is SE Asia
by pressure immersing in Borate
insecticides prior to drying.
It weighs about 15% less than
hard maple. Hard maple
requires about 1450 lbs to mar
the surface; rubberwood requires
about 960 pounds to mar the
surface (Janka Test).
Nevertheless it is exceedingly
cheap and is a popular material
for blocks where price is the
major consideration. These
blocks satisfy all of the
conditions of CPSC as to safety
and will provide many hours of