As a counter-example, for France anything under 5ft is not counted. Areas under the stairs, that edge area of slanted ceilings, areas above a loft can't be coun

As a counter-example, for France anything under 5ft is not counted. Areas under the stairs, that edge area of slanted ceilings, areas above a loft can't be counted. You can include it but the official number is footspace that is standing height.