Furring is a type of ship rebuilding method indicative of the late 16th century and early 17th century England. It was adopted as a remedial process to solve crank ships that were built too narrow. When a ship could not bear sail, was too narrow or her bearing laid too low, a second layer of frames was attached to the first to make her broader and lay her bearing higher. This was done by ripping the planks off and applying the second frames on top of the original frames, and then adding the planks back on. "They commonly fur some two or three strakes under water and as much above, according as the ship requires, more or less." (Mainwaring, 153)