How high is the folding chair seat from the floor?
This can vary from chair to chair, so check the specs on each folding chair. Generally the seat is about 18'' or so from the floor.
What is the weight limit for your chairs?
Each of our folding chairs is going to have a different weight rating, but most chairs will have a professional-use dynamic rating of at least 200 pounds, and a static rating of 500 pounds or more. See the specific product page for more information.