Weigh assembly in SolidWorks

Tutorial by David Thomas

It is not difficult to do. Here's how :

Step 1:

Open your assembly. Expand the first part in the feature tree and click Edit Material - unless you see the appropriate one in the dropdown list, in which case you can select it there and skip the next step.
Step 2:

Right click on Material .
Step 3:

Select your material and click Apply. Here I've chosen Plain Carbon Steel. Close the Material dialog box. Repeat for all parts in the assembly.
Step 4:

Click Rebuild, just to be on the safe side.
Step 5:

Select Tools-->Mass Properties...
Step 6:

Your mass will be shown here.
Step 7:

Clicking Options in the Mass Properties dialog window will open the Options window. Select Use custom settings if you wish to change units, precision, etc.