Item Size Fit Rough Opening Toal Height With Hardware Distance From Wall (After Intall )
30''×84''

Width≤28"

Height≤80.5’‘

90‘’ 9/16''
36‘×84’‘

Width≤34" 

Height≤80.5’‘

90‘’ 9/16''
42’‘×84’’

Width≤40" 

Height≤80.5’‘

90‘’ 9/16''