For indoor use, the platform allows work to 0,70m ceiling, being at the right height. Outside the floor can be set up to 2.50m in height. I did a test 2,80m. This is the limit! It is acceptable for a short response. Although it's still very stable. The railing is more than 0.70m. (It can work up to 4,80m tall ...) The floor above it would be downright dangerous. Must not think about it. On a flat and hard, it's perfect. You could dance to it. On soft ground must think of cinder blocks or planks under the wheels and shoring legs. I have not yet tried staircase ... This is for work at height. So CAUTION !!!