contentS > how we Look > the Stretch > Size and heiGht back forward Skip to next chapter  The Stretch 3.2 Size and height the height of the Stretch relates to the size of the grid unit of a page or layout. the Stretch can be used in a variety of sizes—from small to extra-large—based on the type of communication, the specifc customer or audience, and the overall desired impact. Small Medium Large Extra-large Stretch = the height of ½ grid unit Stretch = the height of one grid unit Stretch = the height of two grid units Stretch = the height of three (or more) grid units