The Skeleton of Your Shop.

Across, from side-plate to side-plate, lay some loose boards, for a platform; then, standing on these boards, let your assistant lift one end of the ridge-plank, while with one nail to each rafter you fasten the two end-rafters on to the ridge-plank, fit the jaws of the bird’s-mouth cuts (Fig. 71) over the ends of the side-plates, and hold them temporarily in place with a “stay-lath”—that is, a piece of board temporarily nailed to rafter and end-plate. The other end of the ridge is now resting on the platform at the other end of the house, and this may be lifted up, for the single nails will allow movement and play to the posts.

Fig. 72.—Machine-Shop.