Solidworks Pre-defined Views and sheet scale
When Pre-defined Views are created, they are set to follow the sheet scale by default; however, you can manually set them to have a custom scale. If you are using the automatic scaling option----Tools > Options > System Options > Drawings > Automatically Scale New Drawing Views, the sheet scale is automatically changed when the drawing views are populated to make a nice fit of the model geometry on the drawing. The scales used by the automatic feature are all standard multiples of two, so you do not have to worry about odd scale factors on your drawings.
