How do you tell the difference between a Funnel Web spider and a  Trap-Door Spider

To the untrained eye, both look the same
Both can be found in doors,
One is dangerous and deadly and the the other is considered a low risk

The easiest way to tell the difference is the funnel web has long spinnerets and the male has a spur on the second appendage

In saying this, its best to leave them alone

funnel web spider male top view

Photo: David McClenaghan CSIRO Entomology Hexathelidaemale and female funnel web spidersmale funnel web spider top view