# Dimensioning Tabs

There are several tabs for dimensioning elements in which you can define how elements on different Faces or in different directions should be dimensioned.

![](/files/d7w1nusYrxheTXHCX0qm)

In each tab, you can choose from different options. Some of them may vary depending on the chosen category:

![](/files/dkFL7M2WQuF4LlNTXMTT)

**Horizontal Dimensions/ Vertical Dimensions/Along Element Dimensions/ Across Element Dimensions** - choose options for vertical, horizontal and diagonal dimensions

**Measure Width/Position/Length/Height** - turns ON Horizontal/Vertical/Diagonal dimensioning

**Measure** - choose to where dimension point should snap:

* Location Point - will snap to insertion point of a Family
* Location Line - will snap to location line. Available for line-based elements (Structural Framing, Pipes, etc)
* Left/Right Edge - will snap to the edges of solid body in the Family
* Reference planes - will snap to reference planes which are inside Family. Reference planes should be set to Left/Top/Center etc.

  ![](/files/Mba0PuvrxBX8yaW8ehNX)
* Model lines - will snap to model lines, which are inside the Family. Model lines should be perpendicular to the dimension line in the view

**Join Dimension Lines** - if OFF, each element will have its own dimension line. That's why it's usually ON, to have fewer dimension strings.

**Measure Only First & Last Element** - will skip dimensioning of intermediate elements

**Disconnect from Total Dimension Point** - will give dimension only between measured elements

**Dimension Position** - select from available options where to place the dimension:

* Left/Right/Top/Bottom - dimensions will be placed at selected side, outside of all elements, to be included in Total Measure
* By Element - dimension will be placed at nearest side
* By Measure - dimension will be placed at the position of dimensioned element

**Text Note** - enter a value for text note. Works with Text Note Settings. *(See relevant help file.)*

**Text Note Parameter** - select parameter, which should be added as a note to the dimension line. Works with Text Note Settings. *(See relevant help file.)*

**Grouping** - group dimension lines by the selected parameter 


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