Seat foam dimensions 9A

I was about to "design" the foam for the seats of a 9A, purchase the foam and make the seat covers. Is there a sizing for the foam for the seats? I may use similar as Confor foam and different layers with different densities. What I was looking for was a drawing with dimensions for the foam.

Many thanks

Seat Foam Measurements

I am also going to make my own seats. After I got a ride in my friend's RV-7A with still-in-the-plastic Oregon Aero seat cushions I was more convinced than ever. So before Howard sent the cushions off to be upholstered, I went back with a big set of calipers and took some "starting" measurements since I'm 6' 5" and my wife is 5' 0". Here's a couple of pics and the source I used here in the U.S. Tom's Web Page

The measurements are out in the garage. If you want, send me an email Tom , I'll scan the page and send the image to you.

Cheers,
Tom