Can giants open their own doors?

Doors in the frost giant stronghold Grimskalle require a DC 20 Strength (Athletics) check to open. Icewind Dale: Rime of the Frostmaiden gives us guidance on the keep’s construction:

How easy is that for a frost giant to open? They have 23 Strength (+6). They also have proficiency in Athletics, which brings their total bonus to +9.

A creature rolling a d20+9 vs. a DC 20 will succeed 50% of the time.

Do frost giants fail to open their own doors 50% of the time?

No.

That’s silly.

Why Can Giants Open Doors?

In abstract, The system works because your push/carry/lift capacity doubles each time you double your size.

So, a huge giant has a push capacity of 120x their Strength score. That’s 2,760 pounds for a frost giant.

Checking back in with our doors, they don’t provide a weight. But, we know it’s…