Canopy for a D6-9U.

probably packing cases. you could use a nice hard wood timber like oak or cedar. i would use spotted gum, yellow stringy bark or ironbark prehaps.

Thanks for that info. Nice thing here is we have a saw mill on the farm so I can cut out whatever materials would be needed. With all these machines still around I would think someone would have one with an original canopy that could be measured and some photos showing original construction. If someone within a days drive has one that I could get some photos of and measurements that would be OK also. I would post the info here so anyone in the future that wanted to could reproduce one to factory specs.

I believe the illustrations in the parts book are to scale. So if you have at least one part on the tractor you can measure, and then measure the PB drawing, you can come pretty darn close. The top was likely covered with canvas glued over the wood, then saturated with paint, very similar to a fabric covered aircraft. I would think the wood strips would have been pretty thin in order to conform to the curvature. Fir would seem to be a good choice similar to old-school porch decking, just a bit thinner.

here is the canopy i made by scaling the parts book for my 7U---the posts appear to be original that came with the dozer [attachment=73117]D4 canopy on 007.JPG[/attachment]

Nice! Those parts books are treasure troves!