The function of a wood jointer is to plane the edges of timber creating a straight edge.

2 1/2 to 4 feet long. Also know as a jointer.

A foreplane is the plane use be-"fore" the jointer and smoothing plane when dressing rough stock and usually between 14 and 18 inches long.

A jointer is also known as surface planer, it is a wood working tool. It is a machine used to make a flat surface. It is called a jointer in the U.K. and Australia.

A jointer is used for putting a straight edge on a board. A planer is used for obtaining a flat surface on the board. With a jointer, you run the board through on it's edge, and with a planer you generally run the board flat.