Customizing a model for your estimate

During takeoff, you can make adjustments to the model specific to the estimate. Your changes do not affect the database model and are not reflected in the estimate until you generate the model.

Before you begin

Open the database that contains the model you want to take off, as follows:

  1. Click File > Open Standard Database.

    In classic view, select Database menu > Open Database.

  2. Select the standard database you want to open.

Tip: You can attach a different standard database to an estimate by opening a different standard database while the estimate is open. This new standard database remains attached to the estimate until you close it or open a different standard database.

To customize a model for your estimate:

  1. Open the Model Takeoff window in one of these ways:

    • On the ribbon, on the Takeoff tab, click An image of the Assembly Takeoff icon on the ribbon.
    • In classic view, click Takeoff menu > Model Takeoff, or click An image showing the Model Takeoff button in classic view on the toolbar.
  2. In the Model Takeoff window, select a model to takeoff.

    In the Model Takeoff window, use one of the following methods to open a model in the Interview window.

    • Select a model and click [Interview].
    • Double-click on a model in the list.

    The source option indicates whether the Model Takeoff window lists models in the database or in the estimate.

    • To takeoff a new model, choose from the list of database models. Note that each time you select a database model, you are actually making a copy of it as an estimate model.
    • To view a model in progress or already generated to the spreadsheet, choose from the list of estimate models.
  3. Enter a model instance identifier in the Reference field.

    Because you can take off a database model off more than once, the Reference field can help you distinguish between instances of that model in the estimate.

  4. In the Interview window, move the cursor to each question or field you want to change and do any of the following:

    • Use the calculator to calculate numeric values.

      1. With your cursor in a numeric field, click Image of the calculator icon in Classic view.
      2. If appropriate, click [Clear] to delete the contents of the calculator.
      3. Enter your calculation in the window.
      4. To insert a math operator or function from a list, click [Functions].
      5. To open the Microsoft Windows calculator, click [Win Calc].
      6. Press Enter to display the result in the calculator.
      7. Click [OK] to pull the result into the model and close the calculator.
    • Clear values or variables you have entered or changed. For more information, see:

      Clearing values

      Clearing variables

    • Remove or restore the link between values and the questions that prefill their defaults. For more information, see:

      Disconnecting values

      Restoring defaults

    • Add notes to an item or assembly.

      Enter notes for an item or assembly in the corresponding Notes field. The notes are brought into an estimate when you generate the model and appear at the item level in the spreadsheet and Detail window.

    • Add another set (pass) of item or assembly variables to the interview.

      1. In the list of passes on the Assembly Takeoff window, select the pass labeled "New Pass."
      2. Move the cursor to the variable pane.
      3. Enter values for the dimensions.
      4. Click An image showing the Add Pass button.
    • Add a duplicate of an item or assembly to the interview.

      Click Image of Ellipsis button next to the selected item or assembly and choose Add <item/assembly name>. Estimating adds a duplicate item or assembly below the one selected. The values for variables and other fields are copied from the last pass of that item or assembly.

    • Edit an item or assembly database record.

      Click Image of Ellipsis button next to the item or assembly you want to modify. Then select Edit <item or assembly name>.

    • Exclude or include an item or assembly for takeoff. For more information, see:

      Exclude an item or assembly from takeoff

      Retrieving excluded items or assemblies

  5. When you finish the interview, click An image of the Scan button to find any incomplete items or assemblies, and values that are out of limits.

  6. At this stage, you can continue refining the model or generate it into your estimate.

    For more information, see Generating a model to the spreadsheet.

Tip: When you can progress no further in the model, you may eventually do some fine-tuning on the spreadsheet. After that, you should avoid making changes in model takeoff because regenerating may destroy some of the details you entered in the spreadsheet.