A conference with 80 guests in one room needs a different team than a 500-person event spread across several floors. Start by looking beyond attendance: count the places guests need help, the sessions running at once, and the tasks your core team cannot cover. Then assign people to specific roles and busy periods. This approach gives you a useful first estimate, helps prevent bottlenecks, and makes it easier to adjust the plan as the event takes shape.
Start With Registration Volume
Use your expected attendance to estimate how many people will arrive at once, not just how many will register. Check-in demand often peaks shortly before the opening session. If most guests have pre-registered and can scan a badge or pick one up quickly, a small check-in team may work. Walk-in sign-ups, payment questions, or badge printing add steps and increase the coverage you need.
List the arrival tasks: greeting, scanning, badge handoff, troubleshooting, and directing guests. Give each task an owner, then consider how many check-in points you can set up without creating a crowded line. Ask your registration provider or event team how long each check-in interaction is likely to take. Build in a floater who can open another station, answer exceptions, or relieve staff during the rush.
Count Sessions and Service Points
Count sessions that run at the same time, then map the support each one needs. A single plenary may need room entry guidance and help for the speaker. Several concurrent breakouts can require a room host in each space, plus someone who can respond to issues across the floor. Include workshops, sponsor areas, meal service, networking spaces, and any activity that draws guests away from the main room.
Separate fixed posts from shared support. A room host may need to stay in place to welcome attendees, check capacity, and flag technical problems, while a floor lead can circulate between rooms. If sessions start or end together, plan extra coverage for the transition: guests may need directions, rooms may need a quick reset, and staff may need to help speakers or vendors. Avoid assigning one person to two locations at the same time.
Map the Venue Layout
Walk the venue and mark entrances, registration, session rooms, restrooms, elevators, food areas, and accessible routes on a floor plan. Long corridors, multiple levels, confusing junctions, or separate buildings can create wayfinding needs even when attendance is modest. Place staff where guests are most likely to pause or take a wrong turn, rather than clustering everyone near the main entrance.
Estimate travel time between posts and identify areas that cannot be seen from one another. A staff member assigned to a distant room may not be able to respond quickly to a problem at registration. Ask the venue about emergency procedures, access restrictions, and which staff handle building operations. Your event team should know who to contact, while avoiding overlap or gaps in responsibilities.
Plan for Guest Support
List the help guests may need, including directions, schedule updates, accessibility assistance, dietary questions, lost items, and speaker or exhibitor support. Match staffing to the service you promise. If guests can request one-on-one assistance or need support moving between rooms, plan who will respond and how they can be reached. Keep private or sensitive requests away from a busy public queue when possible.
Create a simple staffing grid with roles, locations, shift times, breaks, and a lead contact. Add coverage for setup, arrival, session changes, meals, and closing; event-day staffing does not begin and end with the program. Review the grid against your busiest moments and make sure each person has clear instructions and a backup. Harbour Crew can help conference organizers in St. John's plan staffing around their event layout and guest needs.
Your staffing estimate should reflect the work guests will see and the support they may need behind the scenes. Start with arrivals, simultaneous sessions, venue distances, and service expectations, then check for uncovered roles and peak-time gaps. Walk through the plan with your venue and event leads, and adjust it before conference day.