When your floor joists start to fail, reinforcing them before the damage worsens is often the most effective solution. One of the best ways to do this is through a method called sistering.
Sistering floor joists is a process wherein a new joist, or “sister” (a piece of lumber), is attached alongside an existing, often damaged or deteriorating, joist to increase its strength. The ‘sister’ can be as long as the original joist or run alongside the area that needs reinforcement.
This restores the stability of the sagging floor joist without replacing the entire joist, making it a cost-effective and less disruptive solution in the long run. It also helps distribute the load evenly throughout the structure, reducing stress on the existing joists and ensuring they’re capable of supporting the weight of your home for years to come.