Prime-line 5/16 in extruded aluminum window frame has a depth of 5/8 in. The channel for the glass is 13/64 in wide and accepts single strength (1/16 in thick) or double strength (1/8 in) glass or Plexiglas. Several sizes of vinyl glazing channel are available.
Use the appropriate glazing vinyl to insure proper fit. The frame can be miter (angle) cut or square cut.