--- title: Mappable Dimensions description: "**Objective**: In this video and/or step by step walkthrough, you’ll learn about the relationships between various Revit elements and the three types of VECTOR assemblies [https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/01/Mappable-Dimensions.mp4](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/01/Mappable-Dimensions.mp4) #### Build Screen Make sure you are on your **Build Screen** inside of your **VECTOR Bid** Ensure…" url: "https://vectortakeoff.com/support/knowledgebase/mappable-dimensions/" updated: "2022-05-16" category: "Build Screen: Takeoff & Tools" tags: - build screen - dimension - elements - takeoff --- # Mappable Dimensions **Objective**: In this video and/or step by step walkthrough, you’ll learn about the relationships between various Revit elements and the three types of VECTOR assemblies [https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/01/Mappable-Dimensions.mp4](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/01/Mappable-Dimensions.mp4) #### Build Screen Make sure you are on your **Build Screen** inside of your **VECTOR Bid** Ensure your **Page** is selected and that it is utilizing a valid filter set and **REVIT Elements** are appearing on the page ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-01T120612.469-e1643735206606.png) #### Assemblies Click on the **Assemblies** tab on the right-hand side Click to select an **Assembly** Then click **Edit** ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-02T142659.499-e1643830076976.png) #### Edit Scenario Assembly In the **Edit Scenario Assembly** window, there is a **Type** drop-down on the right-hand side Click the arrow You have three possible values **Area, Length**or **Count** ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-02T143223.011.png) #### Length Inside of the **Page** on the left hand side in the **Bid Tree** we have one of each **Assembly Type** added into the page Zoom in to the shapes Select the first **Assembly** in the List, **Length** ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-02T143841.129-e1643830749606.png) Select the **Wall Element** (it will turn blue to show it is selected) Then click the **Properties** tab ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-02T144203.228-e1643830949476.png) #### Perform Assignment We can see it contains dimensions for **Area, Length and Volume**. Click on **Assign** ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-15T133142.189.png) The lineal footage for the length assembly has been populated The assembly is of the type **Length** so it was able to detect a length dimension and map it ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-15T133540.002-e1644950185381.png) #### Area Assembly For this example we are selecting the **Area Assembly** 2' x 4' ACT Ceiling (0.00 sq ft) Then, clicking **Assign** This assembly is of the type **Area** so it was able to detect an area dimension of 231 SF and map it You can also choose the **Count Assembly** to perform the same assignment (see video for instructions) ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-15T134149.422-e1644950577107.png) #### REVIT Element without Length Dimension Select a **Length** Assembly, then choose a different **REVIT** element Inside of the **Properties** tab there is no **Length** dimension ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-15T142349.153-e1644953070192.png) When you click **Assign**, you will receive a message stating that this entity does not have a **Length** to assign and will be ignored Click **Yes** to continue ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-15T142704.061.png) You will receive a message that the entity was not assigned, the color of your element did not change and no quantity was updated for the assembly If you choose **Area** with no dimension you will be met with the same notifications and see no changes ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-15T142939.866-e1644953482897.png) #### Ceiling Element Interaction - Area Assembly Click on the **Area Assembly** When you select the **Shape, **under the **Properties** tab you will see dimensions for **Area, Perimeter, Slope & Volume** ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-15T143905.147-e1644953983947.png)       Click **Assign** This assignment was successful because an **Area dimension** was detected matching the **Area Assembly** type ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-15T144222.956-e1644954175148.png) #### Ceiling Element Interaction - Length Perform the same Assignment This assignment was successful because a **Length dimension** was detected matching the **Length Assembly** type ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-15T144646.368-e1644954459460.png) #### Ceiling Element Interaction - Count Assembly Perform the Assignment This assignment was also successful because all **REVIT elements** can be assigned as a **Count** ![](https://vectortakeostg.wpenginepowered.com/wp-content/uploads/2022/02/Screenshot-2022-02-15T145008.084-e1644954645262.png)