What is the seat depth of a standard executive chair?

Standard executive chairs have seat depths of 19"–21". Tall users (6'+) benefit from seat depths of 20"–22"; shorter users (under 5'6") should look for 17"–19" depth or a model with adjustable seat depth to avoid pressure on the back of the knees. The correct seat depth leaves 2"–4" of clearance between the front seat edge and the back of the knee when seated against the backrest. At OfficeFurniture2go.com, all product specs include seat dimensions — call 1-800-460-0858 to verify fit.