Starting points for the design included a porch (teatime shelter on a rainy Oregon morning), a steep roof (18-in-12 pitch to relate the shed to the steep roof of the existing house), and no modern construction materials. We did use a modern design tool, though. Creating the design in SketchUp let us build the shed on-screen, right down to the number of studs. Our builder, Marv Glover, used both two- and three-dimensional views as he assembled the shed.” – Robyn Doyon-Aitken
via An Old-Time Garden Shed – Fine Homebuilding.