I need to get a new cubicle for my tenant. Tray is fine.
Measured it but the readings seem rather strange.
Length 117
Width 73
These are the actual screen measurements.
Almost certainly a 120 x 80. The frame sits slightly inboard of the tray edge so it measures a bit smaller than the tray size. Most frames have adjustments as well on the sides to cater for walls that are not quite vertical / flat (are they ever?) so there's probably +/- 30mm adjustment in the frame.