[Shelling help]

I am trying to create a space in a 16" high platform in which to sink a 60"x32"tub.

The shell thickness of the platform will has to be 14".

I am following the same process that I used to make the tub (which has a 2" shell thickness).

When I use the shell command, I get my 14" shell thickness, but the platform is only hollowed out 1-1/2" down.

I have repeated the process several times, with the same result: an 1-1/2" indentation.

What is it that I am missing here?

[Tutorials???]

the Design Express web site is also in French.

You can copy the text of the tutorial and use a translator to follow the lesson.