How to draw a countertop with an inside diagonal corner

It's pretty common to draw an L or U-shaped countertop that has a sink in one of the corners, with a diagonal in front of the sink. That's often called an inside diagonal, and occasionally a "lazy susan."  Here's how to draw that shape.

First, draw the basic shape of the countertops, on Step 1.

Next, go to Step 2: Curves & Bumpouts and click on the text marked -Std- on the inside corner. Choose Diagonal... and enter the size of the length of the diagonal

When you add a sink in the corner, on Step 4: Sink & Cooktop, you can rotate the sink left or right, by clicking on the sink (or sink cutout).