What was the 15 century ships made out of?

In the 15th century, ships were primarily constructed from wood, with oak being a popular choice due to its strength and durability. Other types of wood, such as pine and fir, were also used for various parts of the ship. The vessels were often reinforced with iron fastenings and equipped with sails made from canvas or wool. Shipbuilding techniques during this time included the caravel design, which allowed for improved navigation and exploration.