LORTHANU
+1y
One way I have seen, don't know if it's a good or bad idea! Drill four hole in your floor to match the mounts on the seat, use long threaded rods cut for the height and two nuts at the bottom one under the floor and one on top of the floor, do the same at the top of the threaded rod to mount the seat. repeat this step for all four legs of the seat. again i don't know if this is a good or bad idea!