Construct and Install Temporary Support Wall

What happens here

Construct a temporary support wall (also known as a 'pony wall' or 'sister wall') directly next to the load-bearing wall you intend to remove. This wall should be built with vertical studs (e.g., 2x4s or 2x6s depending on load) running from the floor to a top plate, which is then secured against the ceiling joists. It's crucial that this temporary wall is strong enough to bear the weight of the structure above until the permanent beam is in place. The video briefly shows a temporary wall already constructed, holding the load while the original wall is being dismantled.

Goal: Safely support the structure above during wall removal