do u want the bog standard square dimensions or do u want exact measurements around the arches aswell, cause if u still got the boot lining in u can just draw round that
If you go on the AA's website, they do really indepth car reviews. I got one for my Cinq when I had it and it had near enough any dimension you'd want on it.
Yu'll find thats a bit big....Its around 3" bigger than the actual boot floorspace in paarts. Id reconned starting on that and working yure way down...or, even better [ping!]...
draw around the floor outline on the liner with chalk then cut to that
hopefully i have managed to attach a image i drew of it when doing my install. I know its really sad hehe but someone had to do it. just chekc it though as i think a couple are a bit off.