Pressure-Treated Southern Yellow Pine
Pinus echinata, P. elliottii, P. palustris, or P. taeda • Softwood (Reclaimed/Weathered)
Grain Pattern
Primarily straight with a prominent, coarse cathedral figure on flat-sawn faces. High contrast between earlywood and latewood bands is visible through the weathering.
Color Description
Naturally light yellowish-brown heartwood and yellowish-white sapwood, currently masked by an oxidized silvery-grey patina, black microbial staining, and green lichen growth from environmental exposure.
Hardness Rating
690 lbf (Soft)
Durability Rating
Very Durable (due to chemical treatment). Untreated pine is non-durable, but pressure-treated samples resist rot and termites for 20+ years.
Common Uses
Exterior fencing, decking, structural framing for outdoor projects, landscaping, and utility poles.
Geographic Origin
Southeastern United States (major growing regions from Texas to New Jersey).
Market Value & Sustainability
Estimated Market Value
$1.00 - $1.50 per board foot (standard utility grade)
Wood Age Estimate
10 to 15 years based on the heavy oxidation, deep surface checking, lichen growth, and the presence of older-style rusted Phillips head screws.
Sustainability Status
Least Concern (IUCN). Widely available as FSC or SFI certified; highly sustainable due to rapid growth and extensive plantation management.
Workability
Easy to work with power tools; takes nails and screws well. Soft earlywood can lead to uneven sanding. Chemical treatment requires the use of hot-dipped galvanized or stainless steel fasteners to prevent corrosion.
Notable Features
Distinctive resinous scent when cut; contains copper-based preservatives (ACQ or MCA) which give a greenish tint when new; sawdust from treated wood is a respiratory irritant.
Finish Recommendations
Requires thorough cleaning (pressure wash or sanding) to remove oxidation. Recommended finishes include semi-transparent oil-based stains or solid exterior latex stains once the moisture content is below 15%.
Identification Confidence
High. The structural application as a fence picket, the characteristic wide growth rings, visible cathedral grain, and the specific grey/black/green weathering pattern are diagnostic for Southern Yellow Pine.