Standard joists (those with a single uniform load) are selected from Joist Design tables. The joists in the table are listed in the Joist Size list box with the currently selected size highlighted. To investigate a different size:

1. Click on the desired size in the Joist Size list box.
2. Click the Analyze button.

If you want to save this design, click Update Data Base.

For joists other than Standard Joists, no design is actually performed. Instead a Joist Size Label is assigned based on the joist loading.