Hi, I have just purchased a new (but out of the local paper) shower tray for an annexe we are kitting out. Was listed as a standard single size but have measured it and it is 740mmx740mm. Have googled it to try and find an enclosure to fit but cant find anything! Does anyone have any idea where I can get an enclosure to fit? Only cost £15 and got it in attempt to save some money but it's not looking hopeful at the moment! Thanks in advance.