I have 12" I-joist at 16 oc. They span 17 ft and there is one row of blocking. The floors are a bit too bouncy for my liking so I’ll be adding additional blocking to reduce vibration is certain areas.
My question is: if I’m adding additional blocking, do I have to commit to adding them to each joist bay, or can I be selective and only add them to problematic areas?
Main reasons are high costs of lumber and labour.