Term used for vertical blinds. Vanes stacks to one end while controls are located on the opposite end.
                                                            
                                                     
                        
                                                
                        
                        
                            when a vertical blind or drapery panel stacks to one side of a window opposite where the cord controls are located.
                                                            
                                                     
                        
                                                
                        
                        
                            Stack option on vertical blinds where all vanes stack to the opposite side from the controls.