East India Company timber and dockyard infrastructure

Did merchant and East India Company ships use Royal Navy timber stocks, or did they maintain their own sources?

They used a mixture, but the East India Company had important teak sources and built Indian shipyards that later contributed to Royal Navy infrastructure.

Merchants could buy some of the same timber available to the Royal Navy but also maintained their own sources. The East India Company was especially associated with teak and with building ships in India. Its need to construct and support those vessels produced major shipyards and dockyard infrastructure. Some of those facilities later became Royal Navy dockyards, making commercial expansion a foundation for later naval capacity.