The heights listed for arms in this Workbook and the styles shown in our literature and our web site are sub- ject to variation. Table top and bar top thickness, skirting, or custom height table bases may all be factors that will limit an arm chair or bar stools use. It is the customers responsibility to advise us in advance of pro- duction if the height of the arm is a crucial factor in fitting under a table or bar top. At that time we will con- firm that the style and overall height of the arm will meet the criteria to clear the item it is being used with.