FA Exhibit DET-018

Compliant porch column: heavy timber / wrapped / steel (three details)

Three not-to-scale porch column sections distinguish Oregon's exposed heavy-timber exception from FEMA guidance for a wrapped timber pier and project-specific evaluation of a fireproofed steel column. — FA Exhibit DET-018. Porch column strategies. ORSC R327.2 / .3.4.4 + FEMA P-737 §4.7 / TABLE 9 · ORIGINAL FA DIAGRAM; PRIVATE EXHIBIT O STUDIED FOR COMPARISON CONVENTION ONLY. Illustrative — not a construction document. Verify with your building official. CC BY 4.0.

Technical review: Grayson Graham. Last verified 2026-08-25. JSON

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