This rack is easily made from galvanized iron
pipe and threaded floor flanges. For light loads
use 10-in. lengths of 1/2-in. pipe and 2x4s.
For heavier loads go to 3/4-in. pipe and 4x4s.
Be sure to anchor the flanges securely to the
wall using bolts, washers, and nuts—not just
wood screws. If you plan to store finished
material on the racks, slip plastic tubing over
the pipe to protect the surfaces.