@3dRaven Got it, had to disconnect the GetWorldLocation pin and then I got it 
But I can’t get the stairs to cut out any of the squares, 
not sure how you got it to work? Will have to look at it tomorrow but thank you so much for the help.
@3dRaven Just an update,
I figured out the problem for me was world space, only when I returned the Floor and the Stairs to 0,0,0 would the holes in the floor show up but they were off and as I move the Floor the holes would double there distance away from the stairs. You can see the nodes below that I changed in red as well as an offset for the point location so the pivot point could be right in the corner on Stair BP. Also change the IsPointInBoxWithTransform so I get the rotation of the stairs. Just need to find a way to get the floor to recompile when I move the stairs, so I don’t have to have the Blueprint open all the time.
Again thanks for your amazing help!
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Congratulations on getting it working!