[CAUT] Question

[Graves, Tony J.]

Hello,
    We have a small recital hall that doubles up as a choral rehearsal room.
There is a small stage that's about 6-8 inches high with a ramp on both ends
so a piano can get moved on and off.  The ramp is just wide enough for the
piano so you have to be careful with the back wall and at the end of the
ramps there isn't a lot of room before the side wall so unless you're
careful  you can do damage to the piano or wall with a 9ft. Piano.  The
problem is unauthorized people are moving the piano on and off the stage. So
does anyone know of suggestions or if there is some type of locking
mechanism that can be attached to the caster(s) of a grand piano
truck/dolly.  Kind of on the lines of a boot for a automobile.
Thanks


-- 
Tony Graves RPT
Piano Technician
School of Music
Ball State University
Muncie, IN 47306
(765) 285-0053