6 slot metal cover dimensions

I need the dimensions to the metal cover that goes over a 6 slot motherboard. I just recently bought a 6 slot and it did not have a metal case and I plan on getting one made. Thanks!

Would like to have these if someone could help out. 4 slot or 2 slot dimensions will work. The main thing I need is the spacing of the cart holes and the size of the cart holes and the covers hight. Thanks.