Do I need AV drawings for a fit-out?

Yes. AV drawings are essentially mandatory on any commercial Cat B fit-out beyond a single huddle room, and they are the document set that turns an agreed design into a buildable, M&E-coordinated installation. Without them the install team is improvising on site, which is the most reliable way to overrun budget and programme.

From the floor. The coordination point that decides the programme is the M&E clash. Lighting grids, sprinklers, PIR sensors and HVAC diffusers fight ceiling microphones and projector mounts on every Cat B project, and the only way to settle it before the ceiling closes is a federated BIM model with AV in it. Sketching a mic position on a 2D plan is fine until a sprinkler ends up six inches above it on the day. — George Barnett, Director and Project Manager

Three drawing sets are standard on a Cat B fit-out. Single-line schematics show signal flow per room (camera to codec, codec to display, microphone array to DSP, DSP to ceiling speakers) in the same shorthand as an electrical schematic, so any competent integrator can read and verify the design. Equipment schedules are the room-by-room kit list with manufacturer, model, quantity and rack assignment, doubling as the procurement document. Rack elevations show the physical layout of equipment in each rack (1U strips, ventilation, cable management, power distribution, network switch position) so cooling and access are designed in rather than discovered. Strive AV's consultation and design service produces all three as the standard deliverable.

For larger fit-outs (typically £1m+ AV scope or any project on a structured programme) add wall elevations showing camera, display and panel positions to the millimetre, a cable schedule listing every drop with route and termination, and a network diagram for IT sign-off. BIM coordination with the M&E consultant becomes a contractual requirement on most Cat B projects of this scale, with AV equipment, containment and cable routes modelled in the federated coordination model.

For control systems, programming drawings document the user interface logic, room-control signal paths and any third-party integrations (BMS, lighting, blinds, room booking). These sit alongside the physical drawings rather than replacing them, and they are what the programmer codes against once the hardware is in.

Quick reference: single-line schematics, equipment schedule and rack elevations on every Cat B fit-out; add wall elevations, cable schedule, network diagram and BIM coordination on £1m+ projects.