The child elements WIDTH_X, DEPTH_Y, HEIGHT_Z specify whether the price calculated for an item with this price type depends on the width, height, depth, surface area or volume.
If no dimension is specified as "1", the price does not depend on dimensions and is calculated on a per piece basis (e.g. for a sitting element). The values in BASIC_UNIT and ROUNDING_UNIT are then set to 0.
If "1" is set for a dimension, the price calculation will be based on this dimension (e.g. fabrics).
If exactly two dimensions are set to "1", the price is based on the surface area (e.g. carpets).
If exactly three dimensions are set to "1", the price is based on the volume (e.g. lounge sections).