Color: Heartwood is
yellowish tan to light brown. Sapwood is tan to white. Heartwood may be
confused with that of Southern yellow pine. Radical color change upon
exposure to sunlight.
Grain: Normally straight, with occasional wavy or
spiral texture. Nearly all fir flooring is vertical- grain or riftsawn
Variations Within Species And Grades: Wood varies
greatly in weight and strength. Young trees of moderate to rapid growth
have reddish heartwood and are called red fir. The narrow-ringed wood
of old trees may be yellowish-brown and is known as yellow fir.
49% softer than Northern red oak.
Dimensional Stability: Above average (change
coefficient .00267; 28% more stable than red oak).
Durability: Durable but easily dented. Somewhat
brittle and splinters easily, especially with age. Used for flooring,
but may not be suitable for all applications due to its softness.
to work with hand tools than the soft pines.
Sanding: Sands satisfactorily.
Nailing: Good holding ability.
Finishing: Some boards develop a slight pinkish to
bright salmon color when finished with some products. Because of
tendency toward color change, care must be taken to avoid oversanding
when refinishing an existing floor
Comments: Sometimes milled for flooring as end-grain
block, which is significantly harder than plainsawn.
(relative to plainsawn select red