Max Pressure Cold vs Hot Pressures - How Much Is Too Much

I run 108 PSI cold (usually about 65 degrees in CA) and 120 to 124 PSI warm. Temp increases by about 16 to 20 degrees over ambient. In three decades of DPs, most inflate about 5 to 8 PSI over the recommended. i think trailers should be at or close to the max rating.