Centuries before the practical use of gunpowder, ancient armies employed handmade artillery against castles and fortifications using enormous throwing machines powered by humans , twisted cord , bent wood and metal, or gravity . 

Ingenious and varied in their design , these great siege machines, or siege engines, hurled large stone balls and flaming tar to breach castle walls and set fire to interior buildings. 

The trebuchet , or Trebuket , as it is sometimes known,  is a direct decendant of the simple sling , or what is commonly known as a slingshot . Introduced into siege warfare during the twelfth century, the trebuchet , powered by gravity alone, was the most effective siege weapon of its time.

Our trebuchet and siege engine plans feature measured drawings and easy step-by-step instructions using common, locally available and affordable materials.

Buy This Trebuchet Kit

These Medieval  trebuchets  , trebuchet kits  and trebuchet plans  make perfect gifts for your favorite Medieval and Renaissance enthusiast. Know someone who needs a gift idea? Send a TrebuchetStore.com Gift Hint .

Great for teachers and students of Ancient Warfare and Technology, History, Math and Physics. Perfect for Six Sigma and Design Of Experiment (DOE) training.

Check out our easy to build Onager Plans. Build this working model torsion catapult using inexpensive materials available at your local home improvement center.

View the plans and specifications for a full size catapult .

Rather build a catapult  without a  sling ? Try our Roman Mangonel Plans.

Try our Catapult Plan Combinations and Save!