How do I tell if a wall is load-bearing?
Before you cut into or remove a wall, you need to know whether it carries structural load. Guessing wrong can sag floors or fail the roof. A few reliable cues narrow it down, but confirmation matters.
- Check joist direction and what sits below the wall4
Read the structure above and below. A wall running perpendicular to the joists above it is likely bearing; one parallel to the joists usually is not. If joists splice or lap directly over the wall, it is almost certainly load-bearing.
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🛠️ Flashlight, tape measure, access to attic/basement
- Hire a structural engineer before removing any wall5
When the cues are ambiguous or you plan to remove the wall, pay a structural engineer for a short consult. They confirm the load path and, if it is bearing, size the beam and posts needed to carry the load down to the foundation.
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🛠️ None