Ned Wrote: Delivery of my new 10" f/6 mirror has been delayed for a few weeks. Can anyone tell me the typical weight and thickness of such a mirror from Nova so that I can continue work on the rocker box? Hi Ned, If it is of standard thickness Pyrex - It will be 1.75" thick, and weigh 11 pounds. I hope you have another scope to use in the meantime - Waiting can be rough on a guy! -Chuck