Alex and Joe have a giant deck on the roof of their garage, but they've let it sit for nearly eight years because they've been too overwhelmed by the lack of privacy to build it up. Luckily, Alison has ideas and starts her design by enclosing the space with slatted pine privacy walls. To add function, she designs three separate spaces, a kitchen, dining area and lounge. In the kitchen, Alison brings in a giant grill, beverage refrigerator, cabinets, granite countertops and a sink. Alison and Alex team up to make DIY side tables that will go in the lounge area, right by the new fire pit. In the elevated dining area, Alison has seating for 8, a turf floor and plants to give the space a cozy feel.