Metro Series sliding windows use the sliding door frame but have smaller sliding panel rails, interlocker stiles and mullions. Stiffening boxes on interlocker stiles and mullions are flush in the closed position.
Wide formats are possible with a maximum of six panels — two stacking towards one jamb and two stacking the other way.
Metro Series occupies an intermediate position between Altherm Residential and the APL Architectural Series
Metro sliding windows use the sliding door system frame but have smaller interlocker stiles, mullions and bi-parting meeting stiles
The sill frame has a flush track
Interlocker stiles and mullions are flush in the closed position
Corner sliders (90º) are available with no corner post (exterior and interior corners)
Ideal for non-projecting or servery windows
Wide opening is possible in bi-parting or stacking configurations