1 cubic yard = 1.3 tons
a cubic yard of wood?
It varies based on the density of the mix, but should be around 145 lbs per cubic foot. 27cu ft/cu yd -> 27 x 145 = 3915 pounds per cubic yard
About 600-700 kg.
It weighs approximately 1.75 tons. It can vary some do to the density of the material, amount of water contained in the material and type of material.