Originally posted by Ghostvenger92:

ok i managed to make a fire and put a cookiing thing on top of it, put a work bench but the building of a house is hard, cant seem to get anything to line up so i have a dozen roof pieces piled up just to use the workbench

Basically, aim your mouse cursor to the edges and points of walls, doors, beams, etc to align them together. Certain things like angular roof tops, require a more precise way to align them, like a horizontal beam or a floor board.