
The USS Constitution, also known as Old Ironsides, is a three-masted wooden-hulled heavy frigate of the United States Navy. It was constructed between 1794 and 1797, with materials contributed by nearly every state in the new nation. The ship's hull was originally made of white oak and live oak, with pine and black locust also being used. The wood for the ship came from various sources, including southern live oak cut from Gascoigne Bluff in Georgia and longleaf pine from South Carolina.
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The USS Constitution was built using white oak
The USS Constitution, also known as Old Ironsides, is a three-masted wooden-hulled heavy frigate of the United States Navy. It is the world's oldest commissioned naval warship still afloat. The USS Constitution was constructed between 1794 and 1797.
The USS Constitution was constructed with materials contributed by nearly every state in the nation. The primary materials consisted of pine and oak, with the southern live oak being sourced from Georgia. The white oak used in the ship's construction was sourced from the 13 states of the Union, where it was once plentiful.
Over time, it became increasingly challenging to obtain solid wood hull planks and ship's knees made of white oak for the USS Constitution's restorations. In the 1970s, a forest of about 80 white oak trees was planted at the Naval Support Activity-Crane base in Indiana to ensure a dedicated source of wood for the ship's continued restoration and maintenance. In 1976, 150 of these trees were designated for the USS Constitution, and they were harvested in 2014.
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Live oak was also used, sourced from Georgia
The USS Constitution, also known as Old Ironsides, is a three-masted wooden-hulled heavy frigate of the United States Navy. It is the world's oldest commissioned naval warship still afloat. Its construction began in 1794 and was completed in 1797.
The ship was built at Edmund Hartt's shipyard in Boston, Massachusetts, and its hull was built 21 inches thick. The primary materials used in its construction were pine and oak, with live oak being sourced from Gascoigne Bluff and milled near St. Simons Island in Georgia. The live oak from Georgia was cut by enslaved workers, who were forced to labour by Navy officials and contractors.
Live oak was chosen for its durability and strength, making it ideal for use in the ship's construction. It is known for being impervious to cannonballs, contributing to the ship's formidable reputation. The USS Constitution earned its nickname, Old Ironsides, due to its strong and durable hull, which has been maintained and restored over the years.
In addition to live oak from Georgia, other materials used in the ship's construction included white oak, black locust, and longleaf pine from South Carolina. The white oak was used for the hull planking and keel timbers, while black locust was used for treenails, or trunnels, which pinned the ship's hull together. The longleaf pine was used for the decks due to its durability and hardness.
The USS Constitution's original rigging consisted of canvas ropes with mouses, which were reintroduced during the ship's 1992-1996 restoration. The ship has undergone several rebuildings and restorations over the years, with the Navy acquiring the necessary live oak through donations and collaborations with the private and public sectors.
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Black locust wood was used for the treenails
The USS Constitution, also known as Old Ironsides, is a three-masted wooden-hulled heavy frigate of the United States Navy. It is the world's oldest commissioned naval warship still afloat, having been launched in 1797. The ship was constructed using materials contributed by nearly every state in the nation.
The use of black locust wood for the treenails of the USS Constitution is particularly significant when compared to the construction of British ships during the same period. English ships were often built with oak nails, while American ships like the USS Constitution used locust nails made from black locust wood. This distinction in construction techniques may have contributed to the success of American ships in naval battles against the British.
The black locust, or Robinia pseudoacacia, was first mentioned by William Strachey, a member of the 1609 resupply mission to Jamestown. Mark Catesby, author of "Natural History of Carolina, Florida and the Bahamas Islands," also noted the durability of structures built with black locust wood over a hundred years after the founding of Jamestown.
In addition to black locust wood, other types of wood used in the construction of the USS Constitution include white oak, pine, and southern live oak. The ship's rigging components were made from Lignum vitae, a hardy and heavy type of wood found in the Caribbean and South America.
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Longleaf pine from South Carolina was used for the decks
The USS Constitution, also known as Old Ironsides, is a three-masted wooden-hulled heavy frigate of the United States Navy. It is the world's oldest commissioned naval warship still afloat.
The USS Constitution was constructed between 1794 and 1797, with materials contributed by nearly every state in the new nation. The ship was built at Edmund Hartt's shipyard in Boston, Massachusetts, under the supervision of Captain Samuel Nicholson, master shipwright Colonel George Claghorn, and Foreman Prince Athearn of the Martha's Vineyard Athearns. The ship's hull was built using white oak, which was plentiful throughout the Union's 13 states at the time. The wood's hardness, weight, straight grain, and decay resistance made it an excellent choice for the hull.
In addition to white oak, live oak was also used in the construction of the USS Constitution. The keel was laid using southern live oak cut from Gascoigne Bluff and milled near St. Simons Island, Georgia. The labour of enslaved people was used to harvest the oak. Black locust was used to make the approximately 150,000 wooden pegs called treenails, which held the ship's hull together.
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Lignum vitae, the heaviest and hardest wood, was used for rigging
The USS Constitution, also known as Old Ironsides, is a three-masted wooden-hulled heavy frigate of the United States Navy. Built between 1794 and 1797, it is the world's oldest commissioned naval warship still afloat.
The USS Constitution's original rigging consisted of canvas ropes with mouses, which are lumps of line and canvas built up on the outside of the diagonal stays that run between the masts. By the end of the 19th century, wire rope had replaced the canvas rope and was spliced back in on itself to create the loops needed to go around the masts.
The USS Constitution was constructed from materials contributed by nearly every state in the new nation. The primary materials consisted of pine and oak, including southern live oak cut from Gascoigne Bluff and milled near St. Simons Island, Georgia. White oak, live oak, and other woods were also used in the construction.
To preserve the ship, the Navy has had to acquire live oak through donations and work closely with the private and public sectors. Additionally, a forest of about 150 white oak trees was planted in the 1970s at the Naval Support Activity-Crane base in Indiana to provide wood for the ship's continued restoration and maintenance.
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Frequently asked questions
The USS Constitution was built using white oak, live oak, and other types of wood.
The white oak came from the Naval Facilities Engineering Command (NAVFAC) in Crane, Indiana.
Approximately 60 acres of trees were needed for the construction of the USS Constitution.
The original material for the deck was specified to be "best heart pitch pine", but today, Douglas Fir is used.
The USS Constitution was constructed between 1794 and 1797.

























