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Raw Materials. Pipe organs are primarily made of wood and metal. Wood used to make parts of the organ which are not visible, such as the action, may be made of plywood or soft woods such as poplar. Visible wooden parts, such as the console, are made from hard, decorative woods, such as mahogany or oak.
A pipe organ consists of four basic parts. The console contains the keyboards, foot pedals, and stops. The pipes, which may be as short as 1 in (2.5 cm) or as long as 32 ft (10 m), produce the sound. The action is the complex mechanism which is operated by the console to control the flow of air to the pipes.