What is the crossword answer for the clue: Staircase part

RAIL - a 4 letter word may be the answer you are looking for!

STEP - a 4 letter word may be the answer you are looking for!

RISER - a 5 letter word may be the answer you are looking for!

NEWEL - a 5 letter word may be the answer you are looking for!

TREAD - a 5 letter word may be the answer you are looking for!

Staircase part

4 Character Answers:

RAIL

STEP

5 Character Answers:

NEWEL

RISER

TREAD