Hi, Pitch pine,
New on here, I'm look forward to seeing the end result.. Excellent what you are doing.. I've needed a workshop for the past year.. Finally getting one supplied.. Hunted for months to find something good.. Can find thick frame, thin cladding, board floor/roof, or thin frame, thick cladding.. All sorts of mixes, single/double doors, glass/ plastic windows, all types of wood.. :?: :?: :?: . Hopefully, the thin frame, 2 x 1 3/4 with 22mm cladding, that's roof an floor also.. will stand the test of time.. Would like to put something together like yours.. Lucky man.. Happy building an best regards.. David..