The goal of this event is to build the most efficient tower under some size constraints from the rules. To be successful in this event, it is important to build various models prior to this event to try and get the most efficient one. Balsa is light, and basswood is strong and heavier than balsa, but still light. Those are the two types of wood I recommend using for this event. Links to buy them are below. Ensure you have safety glasses for this event, and if you ever need a testing set up, contact sciolyhelpline@gmail.com.
The best assortment! Use the thicker dowels for the sides to ensure you have a strong tower, and use the thinner dowels as braces.
Use for places that need extra support, such as important braces and the top and bottom bases.