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) |