In Plain English
Quick Answer
A wall that is part of the structural system and carries the weight of the building above it.
Definition
Definition
A wall that supports structural loads from floors, roofs, or other walls above and transfers those loads to the foundation. Load-bearing walls are integral to the structural system and cannot be removed or altered without engineering analysis and appropriate reinforcement. They are distinguished from partition walls, which carry only their own weight.
Context
Why It Matters in Bidding
Identifying load-bearing walls early shapes both pricing and risk on renovation and tenant-improvement bids, where removing or modifying one requires engineering, temporary shoring, and a transfer beam that a partition wall never would. Misjudging a wall's structural role can turn a routine demolition line into a major change order, so estimators flag these conditions and price contingencies accordingly.
Example
Example
On a kitchen remodel bid, the estimator notes that an interior wall the owner wants removed is load-bearing, so the estimate carries a temporary shoring allowance and an engineered LVL beam with new posts and footings.
See Also
Related Terms
FAQ
Questions Contractors Ask
How can you tell if a wall is load-bearing?
Check the structural drawings and framing direction first; walls running perpendicular to and supporting floor joists or rafters are usually load-bearing, as are walls stacking over a foundation or beam below. On existing buildings without drawings, a structural engineer should verify before any demolition is priced or performed.
Why do load-bearing walls increase renovation costs?
Removing or altering one requires engineering, temporary shoring during construction, and a transfer beam with new columns and often upgraded footings to carry the redistributed load. These items add labor, materials, and schedule, and frequently surface as change orders when not identified and priced during the original bid.
What is the difference between a load-bearing wall and a partition wall?
A load-bearing wall carries structural loads from above and transfers them to the foundation, while a partition wall only supports its own weight and divides space. Partitions can usually be relocated cheaply, but altering a load-bearing wall demands engineering and reinforcement that significantly affects cost and schedule.
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