Whether you’re short on cabinet space, or you like the look of a professional chef’s kitchen or you just want to show off your cookware collection, pot racks and rails are the answer: They not only keep your skillets and saucepans handy, but they also double as decoration for the kitchen. “They’re really practical, because a lot of serious cooks enjoy the convenience of reaching up and grabbing the pot they need instead of bending down and digging through a cabinet,” said Suzanne McGrath, who runs McGrath II, an interior design firm based in Greenwich, Conn., with her daughter, Lauren McGrath. They also make for “a pretty impactful statement,” she…