Loblolly Pine (Pinus taeda)

Loblolly Pine (Pinus taeda)

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Common Name(s): Loblolly Pine

Scientific Name: Pinus taeda

Distribution: Southeastern United States, though also widely grown on plantations

Tree Size: 100-115 ft (30-35 m) tall, 1.5-5 ft (.4-1.5 m) trunk diameter

Average Dried Weight: 35 lbs/ft3 (570 kg/m3)

Specific Gravity (Basic, 12% MC): .47, .57

Janka Hardness: 690 lbf (3,070 N)

Modulus of Rupture: 12,800 lbf/in2 (88.3 MPa)

Elastic Modulus: 1,790,000 lbf/in2 (12.30 GPa)

Crushing Strength: 7,130 lbf/in2 (49.2 MPa)

Shrinkage:Radial: 4.8%, Tangential: 7.4%, Volumetric: 12.3%, T/R Ratio: 1.5

Color/Appearance: Heartwood is reddish brown, sapwood is yellowish white.

Grain/Texture: Straight grained with a fine to medium texture.

Endgrain: Large resin canals, numerous and evenly distributed, mostly solitary ; earlywood to latewood transition abrupt, color contrast high; tracheid diameter medium-large.

Rot Resistance: The heartwood is rated as moderate to low in decay resistance.

Workability: Overall, Loblolly Pine works fairly well with most tools, and it glues and finishes well.

Odor: No characteristic odor.

Allergies/Toxicity: Working with pine has been reported to cause allergic skin reactions and/or asthma-like symptoms in some people. See the articles Wood Allergies and Toxicity and Wood Dust Safety for more information.

Pricing/Availability: Should be widely available as construction lumber for a modest price.

Sustainability: This wood species is not listed in the CITES Appendices, and is reported by the IUCN as being a species of least concern.

Common Uses: Loblolly Pine is commonly used for construction, such as: stringers, roof trusses, poles, joists, piles; as well as interior applications such as subflooring and sheathing. In exterior applications, it is usually pressure-treated with preservatives.

Comments: Loblolly Pine is considered to be in the group of southern yellow pines, and shares many characteristics with other species of this group (Longleaf, Shortleaf, and Slash Pine) such as being: hard, dense, and possessing an excellent strength-to-weight ratio.

Related Species:

Related Articles:

Scans/Pictures:

Loblolly Pine (Pinus taeda)

Loblolly Pine (sanded)

Loblolly Pine (sealed)

Loblolly Pine (sealed)

Loblolly Pine (endgrain)

Loblolly Pine (endgrain)

Loblolly Pine (endgrain 10x)

Loblolly Pine (endgrain 10x)

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4 Comments

  1. John E August 11, 2018 at 4:23 pm - Reply

    I had 6 acres of Loblolly pine trees in Bastrop that burned in the fire of 2011. My land should have been harvested long before the fire to allow new growth. The Feds wouldn’t allow us to clear any land “in case an extinct Houston toad was there”. They never found one Houston toad in 30 years anywhere around this area. The four year drought had killed 20% of my tall pines that turned into fires reaching 1800 degrees. We had no fire breaks either including none on both sides of the electrical power cables (this is what caused the fire when dead trees fell against the power lines showering the ground with sparks during high winds.

    The Loblolly Pine wood is heavier than what you buy at the big box stores. It is strong but still will come under attack from insects.

  2. marty59 August 9, 2017 at 5:16 pm - Reply

    There seems to be some idea that this particular species hardens to some miracle hardness like steel although I tend to think it’s not a huge difference between it and other yellow pine species. Is this mostly myth or fact?

    • David Whitfield September 6, 2017 at 10:57 am - Reply

      It is quite durable wood, however it isn’t that much different from any other type of yellow Pine. It’s reputation for hardness, strength, and durability probably came from people comparing it to the white pine commonly used as building material.

    • Rachel Winner December 18, 2017 at 8:11 pm - Reply

      I work with reclaimed Southern Yellow Pine and this stuff is STRONG and hard. Big difference in my opinion

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