SpanWise on a MacBook Air

SpanWise classifies a 13-inch MacBook as compact using its logical point size, not Retina pixels. The default choices are Halves, 60/40 and Full with margins. A three-column ultrawide grid automatically becomes a usable 40/60 layout here.

MacBook60 / 40

Mail + Chat

27-inchThirds

Code + Browser + Preview

49-inch5 × 2

Six terminals + four tools

The compact display on the left uses 60/40 while larger displays keep their own wider grids.

Use the wider cell for the app you are working in and the narrower cell for Mail, Chat or reference material. If you disconnect the external monitors, SpanWise automatically returns to this compact grid.