Clamps fit easily under the canopy rails. They are made out of 2" x 4" x 1/8" aluminum box material with one end cut off. Holes threaded for screws and rubber caps protect the ends of the screws. Wood blocks take up the space where the canopy rails are bent inward to the cabin. I copied this design from the web. They worked great to hold the plexiglass down while the sikaflex set up firm.
