Engineering insights · Sydney
Planning to remove or alter a wall? If the wall carries structural loads, the change normally needs engineering assessment and a suitable replacement support system.
Practical guidance
Removing a load-bearing wall changes how loads travel through a building. The appropriate solution depends on the existing structure, span, supports below, roof or floor loads, proposed opening and the relevant approval pathway.
Confirm whether the wall is structural before demolition or alteration begins.
Structural design may include beams, posts, connections and supporting footings or foundations where required.
Existing drawings are useful, but a site inspection or further investigation may still be needed.
Temporary support and construction sequencing can be important while the permanent support is installed.
Engineering documentation should coordinate with the builder, architect or designer and the applicable approval process.
Common questions
Visual clues and drawings can help, but they are not always conclusive. A structural engineer may need to review the framing direction, supports, roof or floor structure and site conditions before confirming the wall's role.
Often an opening can be created or a wall can be removed if a suitable replacement structural system is designed. The solution varies by building type, span, loads and available support locations.
A beam is a common solution, but not the only one. The engineer determines the required system based on the structure and the proposed layout.
Engineering should generally be resolved before structural demolition so the support strategy, details and construction sequence are understood.
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