In Castle Pines, Colorado, the crew has a $350,000 budget for a contemporary-style mega deck with a curved, hand-cut stone fireplace, sleek steel pergola and pizza oven. But building outdoors in winter subjects the crew to dangerous icy conditions, and a simple oversight threatens the pergola build. Additional mega-features on this project include a 70-inch TV, state-of-the-art grill and fire pit finished with Colorado buff flagstone.