& Nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; depending on whether you want to choose a few people , or corner sofa : single formula : length: 80-95 , depth: 85-90 ; seat height: 35-42 ; dorsal height : 70-90 & nbsp; - double formula : length: 126-150 ; depth : 80-90 & nbsp ; - three formula : length: 175-196 ; depth : 80-90 & nbsp; - four formula : length: 232-252 ; depth 80-90 & nbsp; - & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp ; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;