Galvanized vs Stainless Steel

When using Cedar, Redwood, Pressure Treated Wood or building in Coastal Ocean Areas, ASTM Nails must be used.  Below is a breakdown of these applications and our recommendations for nail type

Application	Stainless Steel	Hot-Dip Galvanized (HDG)	Notes
Coastal decks, fences, siding	ASTM Approved	ASTM Approved	Both SS & HDG are ASTM Approved but we recommend SS when wood is exposed to high levels of Salt Air
Pressure-treated lumber (ACQ, CA, MCA)	ASTM Approved	ASTM Approved	HDG is most used, SS offers better protection
Cedar or Redwood (tannin-rich woods)	ASTM Approved	ASTM Approved	Highly recommend using SS when building with Cedar and Redwoods to avoid streaking and staining
Outdoor decks, pergolas, railings	ASTM Approved	ASTM Approved	HDG is most used, SS offers better protection
Docks and marine structures	ASTM Approved	ASTM Approved	HDG is most used, SS offers better protection
Exterior siding or trim (visible)	ASTM Approved	ASTM Approved	HDG is most used, SS offers better protection
Outdoor furniture or garden beds	ASTM Approved	ASTM Approved	HDG is most used, SS offers better protection