CHUCK
bark
A fence. Now, wasn't that hard?
Your hand...
The wood goes through a combustion reaction.
Sunlight through the window.
A key goes through the door to unlock it, but it never enters or leaves the house.
roads
road
Carpenters work with the manipulation of wood while Fitters work with the pipes that go through the wood-- more wood goes into a house than does pipes. Is this the answer you were looking for?
Wood products.
roads
grass or roads