Cut four feet off each of the 12 footers to form a 4x8 and a 4x4 lid.
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Placed the plastic on the tubs and placed the cross braces on top to mark their location.
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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.
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Finished. If there is ever threat of snow I'll put a few canes going from brace to brace in one of the corrugations.
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