My experience, which I admit is limited, my daughters BD any where from 1 to 2 weeks. However, the last 3 weeks she's been in a state of perpetual shedding.
Admittedly I'm a relatively new beardie owner, but in the 7 weeks I've had my little guy he's essentially been in a perpetual shed. Not his whole body, but definitely part of him all the time. He's currently on his 3rd shed of his tail.