How to calculate the net floor area when you know the gross floor area

You use the net floor area which is the area minus the space required for circulation and services

Net Area, is soley the working office space, gross area includes all (or a proportion of if a shared office) the 'circulatory' spaces including stairwells, lifts, toilets and entrance lobbys etc.

Hope this answers your question.

They are used for the cargo net ( assuming you mean the hooks in the

cargo area floor )

it is about 8 ft from the floor