Two people can plan on spending 30 minutes to stack a room of 500 chairs. The folks at North Point Community Church in Alpharetta, Georgia, stack their chairs and set them against the walls when an event such as a banquet requires open space. Transition strips between the floor tile and carpet help to visually define the room space. When the stacked chairs are in the storage area, tables and other chairs can be set up in the meeting space. Some churches move chairs into storage closets when they aren't needed.
Hand trucks designed to move chairs make that work a lot easier.
The members of the Ladies Aid group at Bethel Lutheran Church especially appreciate this tool when they set up chairs for their weekly banquet. You just scoop a stack of chairs onto the dolly, wheel the stack into the closet, and slide the chairs onto the floor. Consider purchasing two or three hand trucks to move 500 chairs, al though the time it takes to load and unload will depend on how many people are working with the chairs. Look for ones with skid-proof plates on the bottom, which will keep chairs from sliding onto the floor. The plates should be wide enough to accommodate the width of the rear legs of chairs.