Any thoughts on the pros and cons of each of these? Particularly in an office environment and the need to combat people having the chair scoot from under them and falling to the floor; something that seems to be on this increase. Brake loaded: the chair stays put whilst someone is sat on it Brake unloaded: brakes applied once user gets up My feeling is that, even when sat at a PC, most us expect to be able to move the chair even only slightly to position & reposition. But then, when we want to move the chair any distance, we expect to stand and push the thing. So both these castors carry an issue. Grateful as ever.

We use Brake unloaded: brakes applied once user gets up, castors in our labs which have smooth floors. Once our staff are sat down at for example a microscope they like to adjust themselves before starting work In our offices we don't bother as there does not seem to be any sort of issue on our carpet tiles