Comment by alexfoo

Well, you can approximate it with crude measurements.

Using the photo under the "Rethinking the desk" heading we see an Apple Studio monitor on one side.

On my monitor/browser/resolution/etc the desk is 157mm wide in that image and the monitor is 48mm wide.

The Apple specs say that monitor is 623mm wide.

So that would make the desk roughly 623*157/48 = 2037mm long.

That makes sense, his computer setup is relatively small compared to the analog side.