Fixed height with a standard modesty panel. MODEL HEIGHT DESK CD13 - 1 Wire Access Notch 27'' Fixed 24''x36'' CD14 - 1 Wire Access Notch 27'' Fixed 24''x48'' CD16 - 2 Wire Access Notch 27'' Fixed 24''x60'' CD17 - 2 Wire Access Notch 27'' Fixed 24''x72'' CD36 - 1 Wire Access Notch 27'' Fixed 30''x36'' CD48 - 1 Wire Access Notch 27'' Fixed 30''x48'' CD60 - 2 Wire Access Notch 27'' Fixed 30''x60'' CD72 - 2 Wire Access Notch 27'' Fixed 30''x72''OPTIONSPermaTuff Edge3'' CastersGrommet/s00KB Keyboard TrayCPU Holder