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FAQ

How does a basement or raft foundation change the steel requirement shown?

A basement or raft foundation typically increases steel requirement because retaining walls, raft slabs and deeper foundation elements generally carry more reinforcement density than a standard footing-based foundation on good soil. Toggle these options in the calculator to see the directional impact, but rely on your structural engineer's design once soil investigation results are available, […]

A basement or raft foundation typically increases steel requirement because retaining walls, raft slabs and deeper foundation elements generally carry more reinforcement density than a standard footing-based foundation on good soil. Toggle these options in the calculator to see the directional impact, but rely on your structural engineer's design once soil investigation results are available, since raft and retaining wall reinforcement is highly site-specific.