Heart Pine

Heart Pine

Antique (Slow-growth longleaf Pine (Pinus spp.), often recovered from structural timbers in pre-1900 warehouses and factories, or as sunken logs from river bottoms.)


Color: Heartwood is yellow after cutting and turns deep pinking tan to warm reddish brown within weeks due to high resin content. Sapwood remains yellow, with occasional blue-black sap stain.
Grain: Dense, with high figuring. Plainsawn is swirled; rift – or quartersawn is primarily pinstriped. Curly or burl grain is rare.
Species & Grade Variations: Moderate color variation.


Hardness (Janka): 1225; 5% softer than Northern Red Oak.
Dimensional Stability: Above average (change coefficient .00263; 29% more stable than Red Oak).
Durability: Natural resistance to insect infestation in heartwood; dense.


Sawing / Machining: Good machining and hand-tooling qualities.
Sanding: Tendency to clog paper due to high resin content; begin with coarse grade.
Nailing: Good holding ability.
Finishing: Accepts both surface and penetrating finishes. Some stains may blotch; raising grain first may help. To reduce the wood’s tendency to repel finish coats, surface resins may be removed with a solvent that is compatible with the finish to be used.


(Relative to plainsawn select Red Oak.)
Multiplier: 2.00



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