Section 2 - Dumbwaiter door
The grid door is a part of the left dumbwaiter. The grid door can be open or closed. The grid door is closed. The description is "The grid door blocks the left dumbwaiter's [if the left dumbwaiter is raised]compartment[otherwise]elevator shaft[end if]. The holes in the grid are large enough to put something small into the elevator, but nothing very big will fit through."
Instead of opening or pulling or pushing or turning or attacking the grid door:
say "The door is rusted stuck. It's unlikely that [we] can get it open."
Does the player mean opening the grid door:
it is likely.