Nook width, wall to wall
Depth to the bed, sofa or opposite wall
Desk width
Desk depth
Slide the desk along the wall
Chair: seated
Chair: pushed back to stand
Screen: laptop
Screen: monitor
Top-down plan, drawn to scale. Drag the desk or use the slider; the dashed line is the space behind the desk. Green means the rule of thumb is met, terracotta means it is not.