It's funny how I always put on 2 kilos whenever I am weighed in hospital (and that's making an allowance for the weight of my clothes)!
It doesn't matter though, I use the same scales at home regularly and keep my weight below the maximum I have set myself. I'm not worried about how accurate they are, I'm only interested in the fluctuations in weight
I put my scales on a tiled floor. When I bought them, the instructions said that they were suitable for use on carpeted floors. You just need to check their suitability for your flooring.
If 12Michael is OK with weighing 107 kilos perhaps he is around 2.2 metres tall?