Old internal doors, touching floor

[kannaiah]

We have few internal doors that are old and they scratch the floor. I tightened the hinges couple of times to fix the problem temporarily.
But after few days they comedown. I see splits near hinges, so do the doors need replacing or is there a way to fix them.

Thank you

 

[Murdochcat]

Take the doors off and shorten them

 

[foxhole]

And replace all the screws .