RE PARENT_WIDTH, PARENT_HEIGHT, PARENT_DEPTH

The use of Parent_dimension is used on both the outline and the grid during Catalog construction. The following will show the difference:

Outline WHD (parent)	Grid WHD (children)
CATALOG-Product: default dimensions for use in takeoff. These must all evaluate to something absolute, thus they are no longer measured relative to anything else.	CATALOG-All: relative dimensions of items belonging to the parent that is the highlighted outline member.
CATALOG-Others: default dimensions for use in other catalog items. They are usually expressed relative to the future parent. These values can always be overridden when dragged onto the grid (so the only need to be exact for speed of setup). If these items are used at takeoff a warning such as “Can not evaluate Parent..” will be given since the estimator is now the parent and they must specify the absolute values.	Takeoff: actual dimensions of all catalog items (these are children of the location or room)