Evaluating the Cost of Assemblies in Nested Tree Mode To evaluate the cost of subassemblies in an assembly: In an assembly, click Tools > SOLIDWORKS Applications > Costing . In the Costing Task Pane, under Costing Templates, in Main template, select a template. Under Part List: Click Nested Tree. Select parts for: Costs to be calculated Cost Defined You can view only parts and not assemblies in the above sections. To set or change a predefined cost, select the part in Cost defined and enter the cost. Under Toolbox Parts, select parts and select an option: Exclude. Excludes the selected bodies from cost calculations. Include. Includes the selected bodies for cost calculations. Click Begin Cost Estimation. Click Yes. When you click Yes, the subassemblies that are saved with a cost calculated with a flat tree method may change. In the CostingManager, right-click the subassembly cost and click one of these options on the shortcut menu: Use Cost from Template Use Purchased Cost Use Custom property Cost Use Calculated Cost You can change between Use Cost from Template/ Use custom property Cost, Use Purchased Cost and Use Calculated Cost options. If a custom property is defined for a subassembly, then the option Use Cost from Template is not visible on the shortcut menu. The assembly cost is updated. Parent topicAssembly Costing Rollup Assembly Task Pane Evaluating the Cost of Assembly Operations Evaluating the Cost of Assemblies in Flat Tree Mode Subassembly Costing