Has anyone ever built his own tractor cab? It's getting mighty cold out there in the tractor seat, but I don't really
What helped me--
Once I welded up my frame I went to a sheet metal shop and had them cut pannels from galvanized sheet stock for roof and sides which I then fasten to the square tubing frame with HD sheet metal screws. (cheating)
For the roof I built in rain gutters on the sides and over extender the front and rear by about 3" to keep rain from dripping down over the windows.
For windows I went to a scrap yard and obtained old school bus windows complete with the rubber trim and simply cut out the outline with my jig saw. That worked great.
For the rear window I installed hinges at the top to allow opening upwards and to easily remouve in the summer,
Old school busses also have heaters under some of the back seats that are just right to heat the tractor.
They are about 6"X6" and 4" thick.
I modified mine by installing a 4"x4" computer muffin fan to push the hot air.
Plumbing was accomplished using 1/2" standard copper pipe and rad hose between the cab and the motor.
Experimentation found that installing the heater at top right front section of the cab space, pointing downwards was best.
Because of the front and rear roof overhangs I rarely, if ever, use the wipers, even when snow blowing.
The school bus windows are large enough that they cover almost 80% of the pannels giving me great visibility.(plus they are safety glass and cheap!)