'Floor' in the Bible

And they went on waiting till they were shamed, but the doors were still shut; so they took the key, and, opening them, saw their lord stretched out dead on the floor.

See, I will put the wool of a sheep on the grain-floor; if there is dew on the wool only, while all the earth is dry, then I will be certain that it is your purpose to give Israel salvation by my hand as you have said.

Then Gideon said, Because of this, when the Lord has given Zebah and Zalmunna into my hands, I will have you stretched on a bed of thorns of the waste land and on sharp stems, and have you crushed as grain is crushed on a grain-floor.