Space Saver. LiftMaster’s Model 3800 jack-shaft garage-door opener mounts on the wall next to the door and attaches directly to the door’s torsion bar, freeing up overhead space. The system includes a powered deadbolt that locks automatically when the door is closed and a remote light triggered wirelessly by both the opener and a motion detector. The 24-volt DC motor can also be wired on the wall with an optional low-voltage kit. The opener costs $350. Chamberlain Group, 800/528-5880, liftmaster.com.