Abstract: The tongue and groove tool may comprise a moving armature, a stationary armature, a cam armature, and a spring. The tongue and groove tool may be operable to push a next board and a previously installed board together to seat a tongue into a groove during the installation of tongue and groove boards. Actuating a handle when the next board is aligned with the previously installed board, a pushing head of the moving armature is against the next board, and the stationary armature is anchored to a substructure using one or more spikes on the stationary armature may push the moving armature forward relative to the stationary armature, thus pushing the tongue into the groove and closing a gap between the next board and the previously installed board.