When wood shingling a roof, keeping a ready supply of shingles close at hand can be a problem. The simple shelf shown in the drawing can be secured to the roof by tucking the tapered tab under an already nailed course of shingles. In this way shingles can be kept conveniently close to the height at which you are working, instead of down by your feet on the staging. A bunch of these shelves can be made from rejected shingles and scraps of 1x6s or 1x8s. Cutting the top corners off the shingle part of the shelf makes it easy to slip it up under a course.
Kendall Gifford, Putney, VT