
Based on the provided information, a jackknife sofa does not have one single standard size but is available in several different lengths to fit various spaces. The size can vary depending on the specific model and manufacturer.
According to the product details, common length options for a jackknife sofa include 62 inches, 68 inches, and 72 inches. These different sizes allow them to be installed in a range of settings, such as recreational vehicles, where space is often a primary consideration. Therefore, the specific size of a jackknife sofa is determined by the model you choose.


