The stance location refers to where the inserts are placed in relation to the center of the snowboard. With a centered stance (0 offset), the inserts are centered on the board over the sidecut. Most freestyle boards have a centered stance, which makes doing tricks and riding switch easier.
The nose length is measured from the forward contact point of the board to the tip of the nose. If you put the board on the ground and measure from where the nose starts to kick up to the end, this will be...
Overall length is the full length of the snowboard from tip to tail. It is usually measured in centimeters. When you hear that a board is a 155, for example, it simply means that the total length of the board is 155 cm.
Imagine a giant circle overlapping the edge of the snowboard. Depending on the radius of the circle, the sidecut will be tighter or more mellow. A higher number is typically less aggressive and more stable, while a smaller radius is more...