Could a shower tray be cut before installation?

The best thing is that you provide us the exact meassurements where the shower tray is installed and we cut it to size. If this has not been the case, shower tray can be cut on side, protecting the product properly and using a diamond disc (it is recomended to cut with a FESTOOL with guides to make a straight cut). Ask the technical service first how much and where to cut it. For reasons of meassurements and formats not all can be cut the same.