I like a cutting table that is higher than a regular table, and a sewing table that is lower than a regular table. Sorry I do not have exact measurements for you. I have 2 school tables that adjust in 2" increments. One is 4" higher, the other 4" lower, than when used for writing.
I have heard of some people using pvc pipe to make risers for their tables to accomodate the cutting level.