Are you a
Ladder/Stairs
I always head up or down, straight or in a spiral.
That's what you use them for.
Jacob dreamed of Heaven via me inside the Bible.
He dreamed of angles going up and down from Heaven.
I never head sideways, as that is a different way.
That would be weird.
When home alone, Kevin rode down me on a sleigh.
Going up, I have a flight, but never have I wings.
Stairs but not a flight like a plane.
Climb me for a while, and it might hurt your hamstrings.
It could be a work out.
I do have a replacement that will lift you to the higher;
Elevator
Though you can never use it if there is a fault or fire.
Ladders are one fire trucksIt refers to the replacement. Also stairs are not safeYou cannot use an elevator during a fire.
My names differ, ending with a case or way or well.
Stair case, stair way, stair well.
There is a Phobia of Climbing Me, and a Phobia of Staring at Me
People may get scared and Staring-Stairs!
This riddle might prove to be easy, But to answer it, you will have to think steady.
You have to be careful on the steps?
Hints
Did I forget to mention my relative, the escalator? And to be more specific, my replacement is __ ________.
Escalators are moving stairs but I am not sure about the blanksThe replacement is an elevator. Which cannot be used during fire or mechanical fault.
Congrats on your 20th post, I will enjoy seeing future posts. Have fun!