What I found was MS Colorfast45 steel roofing comes in 48-by-120 incheshttp://www.metalsales.us.com/agricultur ... Ms78THLeIo http://www.metalsales.us.com/agricultur ... Ms86THLeIo
Received today. There’s 7 trailers been built using the D.I.Y. rail top with the tab..
I have preformed two outer rings using the manufacturer trailTop fiberglass modular trailer building components
Using the cut and hinge. trailTop fiberglass modular building components are 120 inches long. Too cut,bend. lay the fiberglass on the joints under 90 minutes .The home made rail-top components used on other Seven trailer's where bigger on the side wall and top .I know the side will be faster with trailTop fiberglass modular . Just cut close and glue drop.