Hi, we are looking at building a 2 storey extension. Upstairs will be ensuite and dressing room to master bedroom which gives me a 10 x 10 foot room downstairs to make a dedicated cinema/games. My worries are will 10 x 10 feel too small. All I need in there is biggest sofa I can get plus screen etc. Other worry is I know a square room is not an ideal shape for sound. Any thoughts advice on the above appreciated.