Garage Workbench Dimensions

Just got home from work and measured, mine is 34", I'm not tall (5' 8") but I think tall so I like it a little higher than most :-D

Multi levels is a great idea, for the higher level, bend your arm 90 degrees at the elbow so that your forearm is parallel to the ground, this will be the optimum height to put your beer down and to retrieve it :-D