Structural · definition
Isolated columns transferring structural loads to deeper, stable soil or rock. Used for decks, additions, and on poor surface soils.
Source: U.S. DOE Building America Solution Center — Flood-Resistant Pier, Pile, Post, and Column Foundations
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Where this term fits in a remodel
The pillar guides set terms like this one in context — what the work involves, what drives its cost, and where it sits in the sequence of a project. Pricing a specific house takes a defined scope and an on-site assessment.