AHU Equipment Room Sizer

You're laying out a mechanical floor and the equipment footprint is only part of the room. Doors need an approach, components need a removal path, and supply and return connections occupy space at the unit.

One planning assumption multiplies served area by an airflow allowance. Keep that arithmetic visible, then separate it from the equipment dimensions: the unit footprints below are independent planning assumptions. Rotate the same unit to see how service access changes the room shape, then compare a larger assumed unit.