The great head, arms and legs of the Colossus were carved from white marble, while the rest of the body consisted of a brick core and wooden framework, possibly covered with gilded bronze.
In terms of construction, the Colossus's prominent features – the head, arms, and legs – were fashioned from white marble, while the rest of its body consisted of a brick base and a wooden skeleton, possibly topped with a layer of gold-plated bronze.