What kind of a question is that?
movable
Uh.... wood IS lumber! same thing!
woody
White Pine
Symon's
fresh water
White Pine
First decide how wide and long and high the project you need lumber for. Then decide what kind of wood you want. Then decide thickness. Take this info to a lumber yard and discuss with one of the people there. He or she might have additional questions for you so take a paper and pencil. Sounds to me like you should hire someone to whatever job you are contemplating.
Technology is fine and using robots in constructing a building is not a bad idea. But it will be too complex then. Since constructing a building is a kind of work that needs more attention. Contractors use and abide the safety measures in constructing a building to avoid future damage.
it helps people to make other inventions what kind of inventions
. It's made from a kind of pine called fir.