How tall should dining table legs be?

Leg height is the finished table height minus the thickness of the top. Our dining tables stand 740 to 760 mm high, and our X legs are 720 mm as standard, so with a 40 mm top they give 760 mm. The desk is 750 mm and the coffee table 400 mm. Tell us the height you want and the thickness of your top and we will weld the legs to match, bar height included.