How to replace indoor railing? ...
Answers: Need a little more info in that, are you talking in the region of the railing on stairs? Or something else? Is the area carpeted? Is the railing painted or stained? Yes it make a difference when trying to match the wood. Which beg another question, is the railing wood or metal?
Unfinished wood railing is sold at most home stores. Buy a piece long ample, cut the ends, stain and polyurethane. You should be able to remove the screw in the bottom of your elderly rail to install the trial one.