I recommend making this a game for the student. At the beginning of each day, ask the student to help unstack the chairs and stack that at the end of the day. It gives the student something to look forward to each day while still being able to achieve classroom settings.

I would recommend allowing the student to move the chairs but in a more acceptable manner and at a more convenient time, for example at the beginning and end of class when the chairs need to be unstacked and stacked anyways.

Maybe come up with a different activity that the student might enjoy. such as offering to the student to help move the chairs in different spots and teaching them that once they are done moving the chairs you must move them back

I also have a student who enjoys moving chairs. In our classroom we have decided to mark off an area on the floor, with tape, where the student is allowed to have the chair. If he moves the chair outside of that area or does something disruptive with it (like throwing it or hitting a wall) then we would take away the chair for a few minutes and then give them another chance.

I would calmly try doing activities with the student that can help distract him from moving chairs, maybe one focusing on him moving something smaller. Like blocks or even pencils/crayons.

I recommend to allow him to continue moving chairs, but only for certain situations. Maybe to go to different places he can move a chair, or use it as a game. If it's a harmless behavior, why not make a change fun?

Create a job for him that he can do. He could stack the chairs at the end of the day.

I would use this to your advantage. Every day as part of the students schedule or task analysis, the student will be allowed to move one chair that is out of place back into its correct spot. This will be the first thing the student does in the classroom and once he is done he can continue with the rest of the class.

I would recommend allowing the student to help unstack and restack the chairs at the beginning and end of the day is a great first strategy. I would also recommend allowing the student to move their chair away from their desk or around the room during appropriate times of the day or activities. This way their behavior can become more controlled and more easily monitored.

My solution and recommendation is that you create a job task or job role for this student of dealing with the chairs throughout the day. In the morning time have the students take down the chairs and put them where they belong, and at the end of the day they can take all the chairs and stack them up. If this doesn't work create a space in the classroom for him to have this behavior and move chairs around or even a game can be created with little miniature chairs. Maybe create an incentive for him to get this game.

I think giving the student a job that involves kinesthetic activity would be beneficial. Also, try to think of fidgets that would satiate this impulse for him. Is it the movement or the organization? Does he need more movement breaks?

I would try to put him in an area where there are not that many chairs or may put stoppers on the chair so they are less noisy.