Difference between a Carpenter and a Joiner - Joinery
Carpenters and joiners both specialise in different skills, however, they are often confused because they are dependent on each other.
A joiner will craft an item, be it a door or window for a house - this will be done in a workshop, and then it is a carpenters' job to fit or install those items on the site. In some practices of installation, you may need both a joiner and carpenter so either can check the overall finish of the application.