FAO Gym Owners - or any garage heros etc...

whats the diameter of the 15k plates?

The box is an add on that they have put on the belt squat platform.

The actual machine has no box and the squat is usually performed looking the other way so that the lever can be operated by the squatter himself.

Smaller than bumpers mate. The "usual" steel plate size.

Can ask for exact diameter if you want?

not to worry mate, was after some full size 15s for a couple of things, thanks anyways!