Yes, you can install casters on a fire pit. First of all, the frame or the main structure of the fire pit has to be of solid metal. The size of the fire pit has to be large. Then you need to install small metal plates at the end of the legs. Then you need to drill it for nuts, and after that, you can put casters on a fire pit. If you don’t want to go through such a complicated process, purchase a readymade fire pit from the market with caster wheels.