Every plan below sits in the same six-metre frame, so the rectangles are directly comparable. Pick up to three and the comparison builds itself from the same numbers the drawings come from.
The window, on the wall it is actually in. Orientation follows from it and so does the sun chart.
The bathroom, at its real footprint. Its area is inside the square metres we quote.
The bed at its real mattress width, 2.00 m long, with a line at the head.
One metre. Every plan is inside the same six-metre frame, so the drawings compare directly.