I agree. I just made my first call to a glass company for prices. 3/4" at the dimensions I would need would be $171.00. They asked what the application was, and it was their opinion that for my uses it would be more than sufficient to use 3/8", the price would be $33.00, and as long as I didn't sit on it or "put all my pots & pans" on it it would be fine.Why does the glass have to be 3/4" thick? Why not 1/4 or 3/8" then you could have it sit in a rabbeted ledge plus maybe one or two cross supports between the long rails. I've set 1/2" corian in a mitered frame that way and it's plenty sturdy but having the glass be the same thickness as the top complicates things plus probably jacks the cost up even higher.
Okay, so if I have an overhang how do I attach the mirror? I think the mirror should line up with the rails, not flush with the edge of the overhang. This puts a 1x frame on it's edge in the middle of the table. I can't picture how I could attach it.I would keep the overhang...better symettry and it accounts for the base moulding.