Set up the stage for the scene. Place all elements being used, including scene pieces and flying elements.
Measure and record the dimensions of all elements, the stage and the dimensions of the elements location on the stage. These measurements can be taken down in inches or feet, but keep it consistent.
Decide on a scale for your drawing. For example five feet will be represented by one centimeter in your drawing. Convert your measurements to the scale.
Draw your map. Using a ruler draw out the dimensions of the stage. Add in the scene elements, do not forget to measure make sure that you place the elements in the appropriate location.
Draw the movement of elements using arrows. For items above the stage or flying elements use dashed lines when drawing them.