This application relates to systems and methods for scaling and assembling framed images, and to offering the framed images for purchase. In some embodiments, a computing device is configured to receive a first customer selection of a frame style and a frame size, where the frame size indicates dimensions of a frame window. The computing device is also configured to receive a second customer selection of a mat style. Further, the computing device is configured to determine, based at least on the dimensions of the frame window and the mat style, a mat size, where the mat size includes dimensions of a mat window. The computing device is also configured to determine, based at least on the dimensions of the mat window, an image size for an image. For example, the computing device may execute a rule-based model, or a machine learning model, to determine the image size.