I workout 3-4 times weekly but that's just to maintain my muscle strength. Heaviest deadlift so far is 250kgs, and had no problem dragging a 160kgs machinery 100m away on a trolley.
Today I moved around 4 machineries worth 120kgs each.
I don't lift heavy objects at work everyday but sometimes certain projects require that sort of strength. I'm pretty small compared to others of the same strength level, and people often think that the machines I move around are under 50kgs until they tried for themselves.