Office Space Calculator | How Much Office Space Do I Need?

How much office space do you need? If you lease too much or too little office space it can be an expensive mistake. Austin Tenant Advisors created this office space calculator to ensure that you determine the right amount.

How much is your monthly rent? – Commercial Lease Calculator
Learn about the different commercial lease rate types
How much is Austin office space for lease?

Use this tool to determine the estimated square footage needed for your office.

Instructions:Fill in the textboxes in the column “# of Rooms required” to estimate the total rentable square feet (RSF)** that your office space requires. These calculations are an estimate and should only be used as a guideline.

Description	Size	Dimensions USF	Unit USF	Total USF
Common Areas
Reception Area	Small – 2 people	10′ x 15′	150
Reception Area	Medium – 5 people	20′ x 20′	400
Conference Room	Small – 6 people	15′ x15′	225
Conference Room	Medium-10 people	15′ x 20′	300
Conference Room	Large – 14 people	15′ x 30′	450
Break Area	Small – 6 people	10′ x 12′	120
Break Area	Large – 12 people	15′ x 20′	300
Server Room	Small	4′ x 6′	24
Server Room	Medium	10′ x 12′	120
Storage Room	Small	10′ x 12′	120
Storage Room	Large	15′ x 20′	300
Work Room (Copy, fax, mail)	Small	10′ x 12′	120
Work Room (Copy, fax, mail)	Large	15′ x 20′	300
USF Sub Total
Offices and Cubicles
CEO/Director Office	Small	15′ x 15′	225
CEO/Director Office	Large	15′ x 20′	300
Private Offices	Small	10′ x 12′	120
Private Offices	Medium	10′ x 15′	150
Office Cubicles	Small	6′ x 6′	36
Office Cubicles	Medium	6′ x 8′	48
Office Cubicles	Large	8′ x 8′	64
USF Sub Total

Total Square Feet
X Circulation Factor				35%
Total Useable Square Feet (USF)
X Common Area Factor				15%
Total Required Rentable Square Feet (RSF)

** Landlords charge Tenants based on the number of Rentable Square Feet (“RSF”) leased. The RSF calculation starts as a total of the Usable Square Footage (“USF”), the dimensions of the actual spaces. To this USF is added a Circulation Factor, typically 25% – 35%, which is essentially the space allowing movement between the individual rooms/spaces. Landlords then add to this number a Common Area Factor (“CAF”), typically about 15% – 20%, to account for those areas shared by all tenants in a multi-tenant building (lobby, restrooms, shared hallways, etc.).