You could make one from old pallet wood or scrap even. I’ll assume you are using 6″ wide planks for this coldframe build. The first pieces to cut ... you can make a reasonable cover by just making a ...
He began with existing greenhouse plans and adapted them to meet his specific needs & the needs of a cold climate. The building is wood-framed, 20’ x 40’ and 16 feet high inside. The north wall is ...