Originally Posted by DoubleO7
if the cabinet is MDF, it might not survive the vibrations of a school bus.
I guess that's possible. MDF isn't exactly an optimal material for any application that I know of, but I think it would take a lot of driving to rattle apart a counter or cabinet made from it. Making sure the cabinetry is well secured to the walls/floors should minimize any damages.
Now, if you are really concerned about impact resistance and durability, I suppose you could build some cabinets out of HDPE panels. They are used to make cutting boards and outdoor cabinets, and HDPE is the material from which the iconic 55 gallon plastic drum is made, so you know they'd be sturdy.
I'm actually thinking of going that route, at least for counter top work surfaces. It's easy to cut and shape with basic tools but also waterproof, easily cleaned, and strong enough to bear up under heavy use. I might go as far as building all the cabinets from it, but I haven't decided yet. That would cost more than just boxing them together out of plywood.
At least I'd know they would be durable. Any road vibration that could shake apart a slab of HDPE is not going to leave the rest of the bus intact anyway.