How big does a dimensional error in locating the dominant surface have to be to result in a 2% error in Rentable Area?
If you assume a square building 150 feet on a side (22,500 SF GMA per floor), a 9 dimensional error in locating the dominant surface on each side of the building will lead to a 2% error (450 SF) in the GMA of a floor. Since Rentable Area is less than GMA (varies based upon building design), the critical dimensional error would be less than 9, possibly around 8 for this example. Dimensional errors for smaller core elements have to be much larger to yield a 2% error in Rentable Area. A floor plan that is reproduced by copying or faxing can easily change scale by 1% to 2% each time it is copied or faxed.
