How to do it?

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1. Start measuring from the corner shown in the drawing.
2. Measure total length of all walls corner to corner.
3. Indicate the location and sizes of the doors and windows. Include individual corner to window/door sill dimensions.
4. Indicate door swings and location of the electrical plugs and the center line of sink. Include waterline and floor drain location.
5. Confirm the room height and location of drop ceiling and bulk heads.
6. Indicate appliance locations and sizes.