All values here were obtained from my Design Journal 6 using the Revit Mass Files.
I'm also attaching here the websites and pdf that I used to preliminary size each space.
Stairs
#Note that the average number of steps is 12! So, I added some extra space for landing area.
Door Swing Clearance In Landing.pdf847.7KB
Toilet
Restroom Level 1.pdf607.6KB
Elevator
bb_2017-008.pdf389.8KB
Two _ Double Lift Elevator Bank Dimensions & Drawings _ Dimensions.com.pdf972.5KB
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