[Hondaracer]

For the most part you can take what soundy and I said on the last page and apply it to a wood frame duplex.

The upside is that you only have one neighbor to consider.

Honestly, if you're moving into an older duplex, or even a townhouse with someone already living beside you, I'd just go knock on the door and either make up some BS to get a look at who knocks, or legitamitely ask them about the sound transfer and other neighbors before you buy lol