Saw this fabulous idea at Chelsea Flower Show in 2017. Would love to create something similar. Half Room, Half Pergola. It would interesting to get ideas as to what materials to use for the construction of the frame. Would Bifold Doors ruin the concept? I think our plan would be to try and incorporate a cooking area into the covered seating space, so you could cook outside more of the time. Heating it would be another challenge, although I have heard the Infa Red Heaters work well.