 | 2 panes – Double hung |
 | 4 panes – Double hung with grids; count 2 for each gridded pane |
 | 3 panes – count 2 for gridded pane, 1 for non-gridded |
 | 1 pane – Transom window (typically above other window or door) |
 | 2 panes – Sliders |
 | 1 pane – Cranks |
 | 1 pane – Picture window (larger than most) |