To build the structures, you need wood. Survivors can acquire wood
from the sea; there would be floating wooden boards – tap them and
survivors will go and pick them up. If they are sleeping, they would not
go. In the upper-left corner of the game, you can check the
timestamps.
Additionally, once you have built the tree plants on
the ark, you will get the wood now and then. Survivors automatically
gather the wood from the tree once it’s ready to chop.
Or, keep an eye on the floating chests in the sea -> tap -> watch video ads and get the wood.
