Sistering joists for a cantilever requires removing the rim joist and sliding the new joist in beside the existing one.
Sistered sistering floor joists.
This article provides step by step instructions and pictures on how to make structural repairs by sistering floor joists alongside weak joists.
The section being inserted and sistered should be twice as long as the cantilever.
Framing lumber is the typical.
How to sister a floor joist.
Properly sistering floor joists is very important and should not be rushed to save time.
Sistering joists means beefing them up with additional material.
Since this is a repair of a faulty or damaged floor joist it is imperative to do this project correctly and there are a few big mistakes to avoid.