I have taken one of the Beta boards and a digital ruler/caliper. The measurements I have taken are posted below. I can not give the measurements of the SD-card holder as the first boards are mounted with a temporary SD-card holder. We have to wait for the final one.
I have opened a new topic instead of posting the data in the various topics dealing with the casing of the raspberry-pi. I leave it up to you guy to link this post into all those posts
As usual: Not guarantees, best effort etc. The PDF is here:
(Post edited. Hit return by accident)