Smeg Classica SO6104APN Manual page 65

Mounting under worktops (mm)
If the appliance is to be built-in under a
worktop, a wooden bar has to be
installed order to use the seal that is
glued to the back of the front panel to
prevent water or other liquids leaking in.
*
Make sure that the piece of furniture
top/rear part has an opening approx.
60 mm deep.
91477A081/A INSTALLATION - 137