It's not like a finished area was so much easier to modify in the past. Plaster and lathe walls tend to have a much smaller cavity than drywall, in the same cro

It's not like a finished area was so much easier to modify in the past. Plaster and lathe walls tend to have a much smaller cavity than drywall, in the same cross-section. Plaster keys take up a good amount of the space. What I find interesting is how there used to be pre-measured kits for constructing houses, so in that respect we've gone backwards.