Planning a Television Studio Floor: A Practical Walk-Through

Start with the programme, not the room

Every sensible studio layout begins with a plain description of what will be made in it. Before anyone draws a rectangle, write down the formats the space must carry: a two-person news desk, a panel discussion, a cooking segment, a small audience show. Each one asks something different of floor area, ceiling height and camera distance. A news desk needs a shallow, tidy set and long lens positions. A panel show needs width and room to move cameras between guests.

List the formats in order of how often they will run, then design for the most frequent one and check the others against it. Studios that are drawn around a single ambitious show tend to be awkward on every ordinary day. It also helps to record how many crew will be on the floor at once, because that number decides how much clear walking space you must protect around cameras and cables.

• Name every format the studio must host
• Rank formats by how often they will run
• Count floor crew at the busiest point
• Note ceiling height needed for lighting and set

Measure the shell and note its limits

With the programme list in hand, survey the empty room carefully. Record the clear floor dimensions, the usable ceiling height beneath any beams or ducts, the position of doors, and the load limits of the floor and any overhead grid. Note where power distribution and air handling already sit, since moving either is costly and noisy to arrange afterwards.

Pay particular attention to sound. A studio that shares a wall with a loading bay or a plant room will pick up rumble that no amount of clever microphone placement removes. Mark these walls on your survey early and keep quiet activities, such as the interview set, away from them where you can. A scaled drawing with every fixed obstacle marked will save many arguments later, because everyone can see what is genuinely movable.

• Clear floor area and usable ceiling height
• Door positions and equipment access routes
• Existing power and ventilation positions
• Walls shared with noisy neighbouring spaces

Place the set and work out camera paths

Position the main set first, then work outward to the cameras. Allow enough depth between the set and the back wall for lighting to be placed at sensible angles; a set pushed hard against a wall leaves nowhere to put a backlight and makes the picture look flat. Keep the primary set away from the main door so that a late arrival does not walk through a shot.

Next, draw each camera position and the path it travels. Pedestal cameras need a clear arc and a clean floor surface, and a long lens needs distance rather than width. Check that two cameras cannot see each other across the set at the angles you intend to use. Mark the zones that must remain free of stands and cable runs. If the drawing shows a camera crossing a cable route, change the route now, not on the first day of rehearsal.

• Leave depth behind the set for backlight
• Keep the set clear of entrance doors
• Draw each camera's full travel arc
• Check cameras do not appear in each other's frames

Route cables before you fix anything to the wall

Cable planning is the least glamorous part of a studio and the one most often regretted. Decide where wall boxes, floor boxes and the main patch point will sit, and keep power and signal runs apart to avoid hum and interference. Where they must cross, cross them at right angles. Give each camera position a dedicated connection point close enough that cables lie flat and out of the walking path.

Leave spare capacity. A studio that has exactly as many circuits as today's show uses will be rewired within a year. Label every run at both ends using one agreed scheme and record it in a simple drawing that stays with the facility. When a fault appears during a live transmission, a clear label is worth more than a skilled engineer who has to trace a run by hand.

• Separate power runs from signal runs
• Cross unavoidable routes at right angles
• Provide spare circuits and conduit space
• Label both ends of every run consistently

Decide where the control room sits

The control room should see the studio, or at least have excellent monitoring of it, and should be quiet enough for the director and sound supervisor to judge audio properly. A window onto the floor is valuable when cameras are few and the crew small, because the director can sense what is happening beyond the frame. In larger operations a windowless room with good monitor walls works equally well and gives more control over light and sound.

Keep the control room close to the studio so that cable lengths stay short and talkback is easy, but separated by solid construction so that voices in the gallery never reach the floor microphones. Think about how people will move between the two rooms during a show, and make sure the route does not pass through the set or the camera paths you drew earlier.

Test the plan with a rehearsal on paper

Before committing to any build, walk the finished drawing through a real show in your head, or better, with the crew. Follow a presenter from arrival to set, a camera operator through a full programme, and a floor manager responding to a late change. Note every pinch point, every cable that crosses a path and every moment someone would need to leave their position.

Mark a simple tape outline of the set and camera positions on the existing floor if you can. Standing in the real space, with a few crew members, reveals problems a drawing hides, such as a sightline blocked by a pillar or a door that swings into a camera path. Adjust the plan, record the changes, and only then order equipment or begin building. An hour spent this way is cheap compared with moving a fixed wall box.

• Walk a presenter, operator and floor manager through
• Tape the layout onto the real floor
• Record every change to the drawing