SPF (Spruce-Pine-Fir mix), likely White Spruce
Picea glauca • Softwood
Grain Pattern
Straight but wavy around knots; flat-sawn with prominent growth rings and circular branch knots; medium-to-fine texture
Color Description
Creamy white to light yellow sapwood with indistinguishable heartwood; low luster; tends to yellow or darken to a tan/gold with age and UV exposure
Hardness Rating
480 lbf (Very Soft)
Durability Rating
Non-durable; low resistance to decay and highly susceptible to insect attack if left untreated in outdoor environments
Common Uses
Construction lumber (2x4s, framing), crates, pallets, millwork, and paper pulp
Geographic Origin
Northern North America (Canada and Northern United States)
Market Value & Sustainability
Estimated Market Value
$0.60 - $1.10 per board foot (commodity construction grade)
Wood Age Estimate
Recent/New; likely manufactured within the last 1-2 years based on the bright color, lack of oxidation, and fresh rough-sawn surfacing
Sustainability Status
Highly sustainable; abundant and widely available; not listed by CITES or the IUCN; common in FSC certified forests
Workability
Easy to work with both hand and machine tools; glues and finishes well, though large knots can cause blade deflection and tearout
Notable Features
Slight resinous scent; lightweight with a high strength-to-weight ratio; susceptible to blue stain fungi if moisture is present
Finish Recommendations
Water-based or oil-based polyurethane; requires a pre-stain wood conditioner if staining to prevent blotching due to uneven density
Identification Confidence
High; the combination of prominent growth rings, light color, circular branch knots, and rough-sawn texture is characteristic of commercial SPF construction lumber