Beginning at one of the plumb line marks measure 3 feet out from the building on the string and mark this with a felt tip pen.
How to build a metal roof carport.
Attach the rib assemblies to the base frame and anchor the frame.
Make sure the carport is laid out square with the existing building.
Measure 4 feet along the building wall and mark this measurement as well.
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Assemble and attach.
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Things you ll need hammer drill circular saw level post hole digger concrete mix three 4 x 4 x 9 posts three 4 x 4 x 11 posts six 2 x 4 x 10 rafters two 2 x 4 x 16 side beams two 2 x 4 x 9 front back beams plywood to cover the 10 x 17 roof area metal hangers nails roof shingles.
Use a power drill to attach the components for the front middle and back rib assemblies.
For some portable carports or car canopies made of galvanized steel or other metals you ll start not by digging holes.