If you attended Woodtoberfest last month you saw our trebuchet in action. If you missed it, you can take a look at this video.

What is a trebuchet?
A trebuchet is a type of catapult that was first used in the Middle Ages. This battle machine threw heavy payloads at enemies. The payload could be thrown a far distance and do considerable damage, either by smashing down walls or striking the enemy while inside their stronghold.

How does a trebuchet work?
A trebuchet works by using the energy of a falling counterweight to throw a projectile. A long beam is attached to an axle. At the short end of the beam is attached the counter weight. The long end of the beam is pulled down, raising the counterweight. A sling, which has a pouch containing the projectile, is attached to the long end of the beam. Upon releasing the trigger, the sling and the beam swing upward, pivoting on the axle toward the vertical position, where one end of the sling releases, opening the pouch and allowing the projectile to fly towards the target. The stored energy of the counterweight is transferred efficiently to the projectile.

Why did we build a trebuchet?
Because it was a great challenge, good fun and because we could!

What wood did you use?
8/4 EcoWoodTM Ash Lumber
EcoWood© is natural, chemical-free material which is treated under extremely high temperatures (400OF+). Sugars are cooked away , leaving a safe and green alternative to chemically preserved wood. The deep rich colored wood is excellent for exterior applications where weather related decay and stability are essential. Learn more about the technical specifications of EcoWoodTM.

Who made this?
Hardwood Incorporation wood enthusiasts and employees crafted this trebuchet in preparation for Woodtoberfest 2014. Special thanks to Jason Howard, Robert Downs, Jordan Mallard and Jason Mitchell for their time and talent.

EcoWoodTM Thermally Modified Lumber

EcoWood™ is a natural, chemical-free material which is treated under extremely high temperatures (400oF+). Sugars are cooked away leaving a safe, green alternative to chemically preserved wood. The deep rich colored wood is excellent for exterior applications where weather related decay and stability are essential.

Available as domestically harvested poplar or ash, this product provides a Class 1 exterior durability rating. You can expect years of service with minimal maintenance from this sustainable alternative to tropical imports such as teak and ipe.

The main uses of EcoWood™ include decking, siding, proch flooring, furniture (both exterior and interior), mouldings, doors & windows and plank flooring.

Why Use Ecowood?
Class 1 exterior durability rating; ideal for porch flooring, decking, siding, cornice mouldings
Increased dimensional stability – moisture related shrinkage and swelling is reduced by 5-15 times
Repels moisture at the molecular level and lowers the equilibrium moisture content by 50%-90%
Enhanced visually – the finished product has an even brown color consistent to the center of the wood and the grain structure is beautifully accented
100% chemical free – it is a 100% “green” product and “green” technology

You can print a specifications sheet