There's a workshop on the base that could trim the desk if required...
However, by the time the job had been costed, effort estimated at commercial rates, a risk assessment carried out etc, it would be cheaper to buy new desks.
Even a decade or so ago, I needed an 8' length of 2x4 for a demo in my classroom teaching Antennas and Propagation. I went to the workshops, and was given the above line. It was much more pragmatic to buy my own for a couple of quid.