Tenants' Rules of Thumb by Use
The general rule of thumb is to allow
anywhere from 125 to 225 usable square feet
of office space per person
depending upon the type and style of the business. This figure can vary based
upon special needs such as extra-large conference rooms or storage requirements,
but will include normal amenities within a general use office.
Also checkout our
Tenants' Rule of Thumb by Job Description.
We also offer our easy to use and
Office Space Calculator
that will give you both general and specific square
The following office space allocations can be used to help estimate the amount of
"usable" office space
required for your business based upon uses. Any common area load factors
will need to be added on to determine the "rentable"
area. Learn how to calculate
rentable office space.
Typical President' s office or Chairman of the Board
200 to 400 sq.
ft. (3 to 5 windows in length)
Typical Vice-President' s Office
150 to 250 sq. ft. (3 to 4 windows
Typical Executive' s Office
90 to 150 sq. ft. (2 widows in
Open Space Workstations
Benches or cubicles 60 to 110 sq. ft.
Work Group Areas
80 to 100 sq. ft. per person
sq. ft. quiet room for every 10 open space or work group workstations
15 sq. ft. per person: theater style
25 to 30
sq. ft. per person: conference seating
8 to 9 ft. wide with 30" counters on either side.
Length depends upon amount of usage
125 to 200 sq. ft. Receptionist and 2 - 4 people
200 to 300 sq. ft. Receptionist and 6 - 8 people
7 sq. ft. per file with a 3' to 4' aisle width
Allow 12" for bookshelf width
175 to 450 sq. ft.
with seating for 4 - 6
15 sq. ft. per person, not including kitchen. Kitchen
should be 1/3 seating area
ADA Restroom within the space
ft. for a 1 seater and 30 sq. ft. for each additional
OSHA Quantity Standards
Corridors within the space
20% to 30% of the total usable area
1 lineal ft. for 4 coats
Water Coolers/Drinking Fountains
1 unit per 75 employees
Suggested Column Spacing
28' to 30' per bay
Suggested Window Mullion Spacing
4'6" to 5'. This determines