The plot is a map of the rig
A lighting plot is a scaled drawing, usually seen from above, that shows where every light hangs or stands and what each one is for. Think of it as a floor plan for light. The venue's stage, trusses and bars are drawn first, and the fixtures are placed on top of them. Anyone who has read a seating plan can read a plot once the symbols are explained.
Crews on festival sites, in studios and in village halls all work from the same document. The person rigging the truss, the person programming the desk and the person operating the show each use it for a different job. If the plot is clear, those three people can work without constant questions, which matters when a load-in window is short and the weather is turning in these autumn weeks.
Symbols, positions and channels
Each light on the plot is a small symbol. Different shapes stand for spotlights, wide washes, moving heads and floor-standing units. Next to the symbol you will find a short label giving its position, for example the second bar back or stage left on the floor, and a number that links it to the lighting desk. That number is the channel or fixture identifier, and it is how the operator finds the light.
Positions are measured from fixed points such as the centre line of the stage and the front edge. This lets a rigger hang a unit in the right spot without guessing. A plot that gives only symbols and no measurements leaves the crew to improvise, and improvisation is where small errors begin.
- Symbol: what type of fixture it is
- Label: where it hangs or stands
- Channel number: how the desk addresses it
- Measurements: distances from the centre line and stage edge
Why the plot is made before anyone arrives
We draw the plot before the day because it forces decisions early. How many lights are needed, where the power comes from, how much weight the truss can take and where the audience sightlines fall are all questions that are cheaper to answer on paper than on a stage. A plot also lets us count equipment accurately, so nothing is missing from the van.
For studio shoots the same thinking applies on a smaller scale. A presenter's desk, a backdrop and a camera position set the angles that light must come from. Drawing those angles in advance means the first hour on site is spent rigging and focusing rather than rearranging.
Colour, focus and the cue list
A plot shows where lights are, but not what they do during the show. That belongs to a separate cue list, which records each change of colour, level and position in order. The two documents belong together: the plot says what exists, and the cue list says what happens and when. Colour is often noted beside the symbol as a filter or a colour setting, so the crew can check it at a glance.
Focus is the final physical step. Once a light is hung, someone points it and shapes its beam to land on a defined area. A good plot names those areas, such as centre stage or the drummer's riser, so that focusing is a matter of following instructions and not of personal taste.
Questions an organiser can ask of any plot
You do not need technical training to review a plot sensibly. Ask whether it shows the whole stage or only part of it, and whether the truss positions match what the venue has confirmed. Ask who has checked the load limits and where the power distribution sits. A designer who can answer those plainly has usually thought the rig through.
It is also fair to ask what changes if the stage turns out smaller than expected. Good plots are made with a fallback in mind, a version with fewer fixtures that still lights the performers properly. Knowing that fallback exists is often more reassuring than seeing the full design.
- Does the plot match the confirmed stage size?
- Who checked rigging weight and power?
- What is the reduced version if space or time shrinks?
Keeping the plot useful on the day
A plot is only worth having if the crew has the latest version printed and to hand. Changes made late, such as moving a band's riser or adding a presenter's position, should be marked on the drawing and not passed on by word of mouth. We date each revision so that nobody works from an older sheet.
After the event the marked-up plot is worth keeping. If the same stage or studio is used again, the drawing becomes a starting point, and the lessons from the first load-in are already written on it. That quiet record saves more time over a season than any single piece of equipment.
A lighting plot is not a specialist secret. It is a drawing with symbols, positions and channel numbers that tells a crew what to hang and where. If you can read it, you can ask sensible questions, spot gaps before the day and understand what the people on the truss are doing. Ask for the plot early, and ask for it to be explained.
