Creative decompression

[shawnhcorey]

Originally Posted by ectropy

There's no guarantee that a specific side will have lower pressure, and a swinging door could suddenly find itself being popped open by a ventilator malfunction on one side. Which is why all airlocks will be sliding doors, not swinging ones.

Sliding doors are harder to seal. Also, they use swinging hatches on submarines to seal off a compartment if there's flooding and those hatches have to withstand more than one atmosphere.