Cut four feet off each of the 12 footers to form a 4x8 and a 4x4 lid.
Placed the plastic on the tubs and placed the cross braces on top to mark their location.
Clap the cross brace to the sawhorse, line up the reference marks and screw the polycarbonate roofing to the pressure treated 2x2 cross brace with ceramic coated deck Nate screws.
Finished. If there is ever threat of snow I'll put a few canes going from brace to brace in one of the corrugations.
